ARQ / Arq, Inc. - SEC Filings, Annual Report, Proxy Statement

Arq, Inc.
US ˙ NasdaqGM ˙ US00770C1018

Basic Stats
LEI 52990086HRJSW2EZQH40
CIK 1515156
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Arq, Inc.
SEC Filings (Chronological Order)
This page provides a complete, chronological list of SEC Filings, excluding ownership filings which we provide elsewhere.
August 14, 2025 8-K/A

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 3, 2025 ARQ, INC.

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 3, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number

August 11, 2025 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 ARQ, INC. (Exact name of regi

August 11, 2025 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2025 ARQ, INC. (Name of registr

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employe

August 11, 2025 EX-99.1

Arq Reports Second Quarter 2025 Results Increased revenue 13% YoY and maintained sustained PAC price improvement Delivered 5th consecutive quarter of positive Adjusted EBITDA – up >200% YoY Achieved major milestone with the commissioning of 1st GAC l

Exhibit 99.1 Arq Reports Second Quarter 2025 Results Increased revenue 13% YoY and maintained sustained PAC price improvement Delivered 5th consecutive quarter of positive Adjusted EBITDA – up >200% YoY Achieved major milestone with the commissioning of 1st GAC line at Red River Targeting final investment decision (FID) for 2nd GAC line prior to year-end 2025 GREENWOOD VILLAGE, Colo., August 11, 2

August 11, 2025 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

August 6, 2025 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 6, 2025 ARQ, INC. (Name of registra

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 6, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

August 6, 2025 EX-99.1

Arq Achieves Major Milestone with Successful Commissioning of First Granular Activated Carbon Line Key achievement in ongoing corporate transformation First GAC sales have been completed Arq well positioned to meet strong GAC market demand GAC operat

Exhibit 99.1 Arq Achieves Major Milestone with Successful Commissioning of First Granular Activated Carbon Line Key achievement in ongoing corporate transformation First GAC sales have been completed Arq well positioned to meet strong GAC market demand GAC operations now shift to production scale-up, targeting 25 million pounds annualized production GREENWOOD VILLAGE, Colo., August 6, 2025 - Globe

June 9, 2025 EX-16.1

Letter of Moss Adams LLP to the Securities and Exchange Commission, dated June 9, 2025

Exhibit 16.1 June 9, 2025 U.S. Securities and Exchange Commission 100 F Street, NE Washington, DC 20549 Ladies and Gentlemen: We have read the statements made by Arq, Inc. included under Item 4.01 of its Current Report on Form 8-K dated June 9, 2025 to be filed with the Securities and Exchange Commission. We agree with the statements concerning our Firm contained therein. Sincerely, /s/ Moss Adams

June 9, 2025 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 3, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer I

June 6, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 3, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer I

May 7, 2025 EX-10.2

Amendment No. 1 to Credit, Security and Guaranty Agreement, dated as of December 27, 2024, by and among Arq, Inc., certain subsidiaries of Arq, Inc., MidCap Funding IV Trust as agent, and the lenders from time to time party thereto.*, †,***

Exhibit 10.2 [***] = Certain information that has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential. AMENDMENT NO. 1 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 1 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of May 6, 2025 (the “First Amendment Effective Date”), by and a

May 7, 2025 EX-99.1

Arq Reports First Quarter 2025 Results Delivered 25% YoY revenue growth driven by PAC business turnaround Achieved 8th straight quarter of double-digit YoY ASP growth, strong gross margins of 36.4%, 4th consecutive quarter of positive Adjusted EBITDA

Exhibit 99.1 Arq Reports First Quarter 2025 Results Delivered 25% YoY revenue growth driven by PAC business turnaround Achieved 8th straight quarter of double-digit YoY ASP growth, strong gross margins of 36.4%, 4th consecutive quarter of positive Adjusted EBITDA and positive net income for the quarter Signed second largest PAC contract in Arq’s history, evidencing sustainability and value of foun

May 7, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 7, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Id

May 7, 2025 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 ARQ, INC. (Exact name of reg

May 7, 2025 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

May 6, 2025 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2025 ARQ, INC. (Name of registrant

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Id

April 21, 2025 DEFA14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

April 21, 2025 DEF 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 11, 2025 PRE 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: x Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 11, 2025 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 8, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

April 11, 2025 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No. 8) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ARQ, INC. (Exact name of re

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No.

April 11, 2025 EX-4.9

Eighth Amendment to Tax Asset Protection Plan, dated as of April 8, 2025 by and between the Company and Computershare Trust Company, N.A., as rights agent

Exhibit 4.9 EIGHTH AMENDMENT TO TAX ASSET PROTECTION PLAN This EIGHTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this “Amendment”) is entered into as of April 8, 2025, by and between Arq, Inc. (formerly Advanced Emissions Solutions, Inc.), a Delaware corporation (the “Company”), and Computershare Trust Company, N.A., a federally chartered trust company (the “Rights Agent”). All capitalized terms used

April 11, 2025 EX-4.1

Eighth Amendment to Tax Asset Protection Plan dated as of April 8, 2025, by and between the Company and Computershare Trust Company, N.A., as rights agent.

Exhibit 4.1 EIGHTH AMENDMENT TO TAX ASSET PROTECTION PLAN This EIGHTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this “Amendment”) is entered into as of April 8, 2025, by and between Arq, Inc. (formerly Advanced Emissions Solutions, Inc.), a Delaware corporation (the “Company”), and Computershare Trust Company, N.A., a federally chartered trust company (the “Rights Agent”). All capitalized terms used

April 2, 2025 EX-99.1

Arq Strengthens Executive Team, Appointing 35-Year Finance Veteran Jay Voncannon as Chief Financial Officer Appoints CFO, 35-year finance veteran to oversee continued transformation and next phase of growth Voncannon has a proven track record in mana

Exhibit 99.1 Arq Strengthens Executive Team, Appointing 35-Year Finance Veteran Jay Voncannon as Chief Financial Officer Appoints CFO, 35-year finance veteran to oversee continued transformation and next phase of growth Voncannon has a proven track record in managing financial operations during a period of significant growth GREENWOOD VILLAGE, Colo., April 2, 2025 - GlobeNewswire - Arq, Inc. (NASD

April 2, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 31, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S.

April 2, 2025 EX-10.1

Employment Agreement by and between Jay Voncannon and Arq, Inc., dated effective April 2, 2025.

Exhibit 10.1 ARQ, INC. EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered effective April 2, 2025, by and between Arq, Inc., a Delaware corporation (the “Company”), and Jay Voncannon (“Executive”). RECITALS: WHEREAS, the Company desires to obtain the services of Executive under the terms and conditions set forth in this Agreement; WHEREAS, Executive desires to ac

March 5, 2025 EX-95

Mine Safety Disclosure Exhibit

EXHIBIT 95 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations.

March 5, 2025 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-37822 ARQ, INC. (Name of registrant as specified in its charter)

March 5, 2025 EX-19

rq Insider Trading Policy

Exhibit 19 ARQ, INC. INSIDER TRADING POLICY Effective: November 7, 2023 Last modified: February 1, 2024 Arq, Inc. (the “Company” or “ARQ”), as a company listed on the Nasdaq Stock Market (the “Nasdaq”), is subject to its rules, as well as the rules and regulations of the Securities and Exchange Commission (“SEC”). U.S. federal and state laws prohibit buying, selling, gifting or making other transf

March 5, 2025 EX-21.1

Subsidiaries of Arq, Inc.

Exhibit 21.1 Subsidiaries of Arq, Inc. Entity Name State or Country of Organization ACS Land Company, LLC Delaware ADA Analytics, LLC Delaware ADA Analytics Israel Ltd. Israel Arq Solutions, LLC Delaware Arq Solutions (Operations), LLC Delaware Arq Solutions (Red River), LLC Delaware Arq Solutions (Vortex IP), LLC Delaware Arq Solutions (Vortex Operations), LLC Delaware Arq Solutions (ES), Inc. Co

March 5, 2025 EX-99.1

Arq Reports Fourth Quarter and Full Year 2024 Results Delivered 10% YoY growth in FY 2024 revenue driven by PAC business turnaround and 7th straight quarter of double-digit YoY ASP growth Grew FY 2024 gross margins by approximately 410 bps YoY to 36.

Exhibit 99.1 Arq Reports Fourth Quarter and Full Year 2024 Results Delivered 10% YoY growth in FY 2024 revenue driven by PAC business turnaround and 7th straight quarter of double-digit YoY ASP growth Grew FY 2024 gross margins by approximately 410 bps YoY to 36.2% and achieved 3rd consecutive quarter of positive Adjusted EBITDA, highlighting sustained foundational PAC business improvement Exited

March 5, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 5, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

March 5, 2025 EX-10.33

mployment Agreement by and between Clay S

Exhibit 10.33 ARQ, INC. EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this “Agreement”) is made and entered effective April 26, 2024, by and between Arq, Inc., a Delaware corporation, whose principal offices are located at 8051 E. Maplewood, Suite 210, Greenwood Village, CO 80111 (the “Company”), and Claiborne Smith (“Executive”) whose address is [*]. RECITALS: WHEREAS, the Executive is currentl

February 7, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 7, 2025 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.

February 7, 2025 EX-99.1

Arq Provides Update on Transformational GAC Project Construction of Arq’s GAC production facility remains on schedule, with initial production expected in Q1 2025 Customer negotiations for GAC contracts progressing well GAC production ramp-up set to

Exhibit 99.1 Arq Provides Update on Transformational GAC Project Construction of Arq’s GAC production facility remains on schedule, with initial production expected in Q1 2025 Customer negotiations for GAC contracts progressing well GAC production ramp-up set to begin in H1 2025, with full run-rate of 25 million pounds targeted for H2 2025 GREENWOOD VILLAGE, Colo., February 7, 2025 - GlobeNewswire

January 2, 2025 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 27, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R

January 2, 2025 EX-10.1

Credit, Security and Guaranty Agreement

Exhibit 10.1 Execution Version CREDIT, SECURITY AND GUARANTY AGREEMENT dated as of December 27, 2024 by and among ARQ, INC., ARQ LLC, WHARNCLIFFE ASSET MANAGEMENT LLC, MINE FOUR LLC, ARQ SERIES B, LLC, ARQ SOLUTIONS (ES), INC., ADEQUITY, LLC, ARQ SOLUTIONS, LLC, ADA ANALYTICS, LLC, ARQ SOLUTIONS (OPERATIONS), LLC, ARQ PURIFICATION, LLC, FIVE FORKS MINING, LLC, ARQ SOLUTIONS (RED RIVER), LLC, ACS L

January 2, 2025 EX-99.1

Arq Announces Successful Closing of $30 million Revolving Credit Facility

Exhibit 99.1 Arq Announces Successful Closing of $30 million Revolving Credit Facility GREENWOOD VILLAGE, Colo., January 2, 2025 - GlobeNewswire - Arq, Inc. (NASDAQ: ARQ) (the "Company" or "Arq"), a producer of activated carbon and other environmentally efficient carbon products, today announced the successful closing of an asset-based revolving credit facility (the "Facility") with MidCap Financi

November 7, 2024 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

November 7, 2024 EX-99.1

Arq Reports Third Quarter 2024 Results Record PAC revenue and profitability driven by ongoing and sustainable improvements Strategic GAC project at Red River remains on target for first deliveries in Q1 2025 with modular commissioning already underwa

Exhibit 99.1 Arq Reports Third Quarter 2024 Results Record PAC revenue and profitability driven by ongoing and sustainable improvements Strategic GAC project at Red River remains on target for first deliveries in Q1 2025 with modular commissioning already underway; capex, timing and contracting advancing in-line with expectations Expect to ramp Red River GAC run-rate to 25 million nameplate by end

November 7, 2024 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 ARQ, INC. (Exact name of

November 7, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 7, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employ

September 20, 2024 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 17, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.

September 20, 2024 EX-99.2

Arq, Inc. Announces Pricing of $25 Million Public Offering of Common Stock

Exhibit 99.2 Arq, Inc. Announces Pricing of $25 Million Public Offering of Common Stock GREENWOOD VILLAGE, Colo., September 20, 2024 - GlobeNewswire - Arq, Inc. (NASDAQ: ARQ) (“Arq” or the “Company”), a producer of activated carbon and other environmentally efficient carbon products for use in purification and sustainable materials, today announced the pricing of an underwritten public offering of

September 20, 2024 EX-1.1

Underwriting Agreement, dated September 20, 2024, by and between the Company and Canaccord Genuity LLC as representative of the underwriters named therein.

Exhibit 1.1 Arq, Inc. 4,770,000 Shares of Common Stock Underwriting Agreement New York, New York September 20, 2024 Canaccord Genuity LLC As Representative of the Several Underwriters 1 Post Office Square, 30th Floor Boston, MA 02109 Ladies and Gentlemen: Arq, Inc., a Delaware corporation (the “Company”), proposes to sell to the several underwriters named in Schedule I hereto (the “Underwriters”),

September 20, 2024 EX-99.1

Arq, Inc. Announces Proposed Public Offering of Common Stock

Exhibit 99.1 Arq, Inc. Announces Proposed Public Offering of Common Stock GREENWOOD VILLAGE, Colo., September 19, 2024 - GlobeNewswire - Arq, Inc. (NASDAQ: ARQ) (“Arq” or the “Company”), a producer of activated carbon and other environmentally efficient carbon products for use in purification and sustainable materials, today announced that it has commenced an underwritten public offering of shares

September 20, 2024 424B5

4,770,000 Shares Arq, Inc. Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-281762 PROSPECTUS SUPPLEMENT (To Prospectus Dated September 4, 2024) 4,770,000 Shares Arq, Inc. Common Stock We are offering 4,770,000 shares of our common stock, par value $0.001 per share, in this offering. The public offering price for each share of common stock is $5.25. Our common stock is listed on the Nasdaq Global Market ("Nasdaq") unde

September 19, 2024 424B5

SUBJECT TO COMPLETION, DATED SEPTEMBER 19, 2024

Filed Pursuant to Rule 424(b)(5) Registration No. 333-281762 The information in this preliminary prospectus supplement and the accompanying prospectus is not complete and may be changed. A registration statement relating to the shares has become effective under the Securities Act of 1933, as amended. This preliminary prospectus supplement is not an offer to sell the shares and it is not soliciting

August 30, 2024 CORRESP

Arq, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111

Arq, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111 August 30, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Arq, Inc. Registration Statement on Form S-3 (File No. 333-281762) Request for Acceleration of Effective Date Ladies and Gentlemen: Pursuant to Rule 461 of Regulation C of the Genera

August 23, 2024 S-3

As filed with the Securities and Exchange Commission on August 23, 2024

As filed with the Securities and Exchange Commission on August 23, 2024 No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ARQ, INC. (Exact name of registrant as specified in its charter) Delaware 27-5472457 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification Nu

August 23, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) Arq, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (1) Proposed Maximum Offering price Per Unit (2) Maximum Aggregate Offering Price(2) Fee Rate Amount of Registration Fee Fees to be Paid Equi

August 12, 2024 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 ARQ, INC. (Exact name of regi

August 12, 2024 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

August 12, 2024 EX-99.1

Arq Reports Second Quarter 2024 Results Ongoing improvement to ASP and profitability of foundational PAC business 52% of Red River’s GAC nameplate capacity now contracted nearly six months ahead of first production Red River expansion remains on targ

Exhibit 99.1 Arq Reports Second Quarter 2024 Results Ongoing improvement to ASP and profitability of foundational PAC business 52% of Red River’s GAC nameplate capacity now contracted nearly six months ahead of first production Red River expansion remains on target for first GAC deliveries in Q1 2025 GREENWOOD VILLAGE, Colo., August 12, 2024 - GlobeNewswire - Arq, Inc. (NASDAQ: ARQ) (the "Company"

August 12, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 12, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employe

July 1, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Tables FORM S-8 (Form Type) ARQ, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title (1) Fee Calculation Rule (2) Amount Registered(1)(3) Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common stock, par val

July 1, 2024 S-8

As filed with the Securities and Exchange Commission on July 1, 2024

As filed with the Securities and Exchange Commission on July 1, 2024 Registration No.

June 13, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 10, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

June 13, 2024 EX-10.1

Arq, Inc. 2024 Omnibus Incentive Plan

Exhibit 10.1 ARQ, INC. 2024 OMNIBUS INCENTIVE PLAN (Approved by stockholders on June 10, 2024) 1.ESTABLISHMENT, OBJECTIVES AND DURATION. (a)Establishment of the Plan. Arq, Inc. hereby establishes an incentive compensation plan to be known as the "Arq, Inc. 2024 Omnibus Incentive Plan." The Plan permits the granting of Nonqualified Stock Options, Incentive Stock Options, Stock Appreciation Rights,

June 6, 2024 424B3

2,142,858 Shares Arq, Inc. 2,142,858 Shares of Common Stock Offered by the Selling Stockholders

Filed Pursuant to Rule 424(b)(3) Registration No. 333-279761 2,142,858 Shares Arq, Inc. 2,142,858 Shares of Common Stock Offered by the Selling Stockholders The selling stockholders identified in this prospectus (the "Selling Stockholders") may offer and sell, from time to time, in one or more offerings, up to 2,142,858 shares of our common stock (the "Shares"). We are not selling any common stock

June 4, 2024 CORRESP

Arq, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111

Arq, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111 June 4, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.E. Washington, D.C. 20549 Re: Arq, Inc. Registration Statement on Form S-3 File No. 333-279761 Ladies and Gentlemen: Pursuant to Rule 461 of Regulation C of the General Rules and Regulations under the Securities Act

May 30, 2024 SC 13G

ARQ / Arq, Inc. / HIRSCHMAN ORIN Passive Investment

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 ARQ, Inc. (Name of Issuer) Common Stock, $0.001 par value per share (Title of Class of Securities) 00770C101 (CUSIP Number) May 16, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule

May 28, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) Advanced Emissions Solutions, Inc.

May 28, 2024 S-3

As filed with the Securities and Exchange Commission on May 28, 2024

As filed with the Securities and Exchange Commission on May 28, 2024 No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ARQ, INC. (Exact name of registrant as specified in its charter) Delaware 27-5472457 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification Numbe

May 16, 2024 EX-10.2

Registration Rights Agreement dated as of May 15, 2024, by and among the Company and the Purchasers named therein.

Exhibit 10.2 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this “Agreement”) is made and entered into as of May 15, 2024 (the “Agreement Date”), by and between Arq Inc., a Delaware corporation (the “Company”), and each of the several purchasers signatory hereto (each such purchaser, a “Purchaser” and, collectively, the “Purchasers”). This Agreement is made pursuant to the Secur

May 16, 2024 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 15, 2024 ARQ, INC. (Name of registrant

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 15, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer I

May 16, 2024 EX-99.1

Arq Announces $15 Million PIPE Transaction Entered Into $15 million PIPE at $7.00 per share, reflecting a roughly 3% discount to yesterday's close Transaction resulted from unsolicited offer from new, accredited institutional investor Bolsters long-t

Exhibit 99.1 Arq Announces $15 Million PIPE Transaction Entered Into $15 million PIPE at $7.00 per share, reflecting a roughly 3% discount to yesterday's close Transaction resulted from unsolicited offer from new, accredited institutional investor Bolsters long-term growth strategy, provides additional third-party validation of strategy and prospects GREENWOOD VILLAGE, Colorado, May 16, 2024 - Glo

May 16, 2024 EX-10.1

Securities Purchase Agreement dated as of May 15, 2024, by and among the Company and the Purchasers named therein.

Exhibit 10.1 [***] = Certain information that has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential. SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of May 15, 2024 (the “Agreement Date”), between Arq Inc., a Delaware corporation (the “Company”), and each purchaser ide

May 8, 2024 EX-99.1

Arq Reports First Quarter 2024 Results Delivered materially improved YoY results in Q1 from PAC margin enhancement Achieved strategic milestone with first GAC contract for 20% of capacity at attractive pricing Red River expansion remains on schedule

Exhibit 99.1 Arq Reports First Quarter 2024 Results Delivered materially improved YoY results in Q1 from PAC margin enhancement Achieved strategic milestone with first GAC contract for 20% of capacity at attractive pricing Red River expansion remains on schedule for first production in Q4 2024; expected payback of 3 years or less GREENWOOD VILLAGE, Colo., May 8, 2024 - GlobeNewswire - Arq, Inc. (N

May 8, 2024 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 8, 2024 ARQ, INC. (Name of registrant

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 8, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer Id

May 8, 2024 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 ARQ, INC. (Exact name of reg

May 8, 2024 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

May 8, 2024 EX-3.1

Amended and Restated Bylaws of Arq, Inc., as amended

Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF ARQ, INC. ARTICLE I OFFICES Section 1.1 Offices. Arq, Inc. (hereinafter called the “Corporation”) may have offices at such places, both within and without the State of Delaware, as the board of directors of the Corporation (the “Board of Directors”) from time to time shall determine or the business of the Corporation may require. The registered office of

April 29, 2024 DEFA14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

April 29, 2024 DEF 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 16, 2024 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 15, 2024 ARQ, INC. (Name of registra

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 15, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

April 16, 2024 PRE 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: x Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

April 16, 2024 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No. 7) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ARQ, INC. (Exact name of re

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No.

April 16, 2024 EX-4.1

Seventh Amendment to Tax Asset Protection Plan dated as of April 15, 2024, by and between the Company and Computershare Trust Company, N.A., as rights agent.

Exhibit 4.1 SEVENTH AMENDMENT TO TAX ASSET PROTECTION PLAN This SEVENTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this "Amendment") is entered into as of April 15, 2024, by and between Arq, Inc. (formerly Advanced Emissions Solutions, Inc.), a Delaware corporation (the “Company”), and Computershare Trust Company, N.A., a federally chartered trust company (the “Rights Agent”). All capitalized terms u

March 12, 2024 EX-97

Clawback Policy

Exhibit 97 Advanced Emissions Solutions, Inc. COMPENSATION RECOUPMENT (CLAWBACK) POLICY Recoupment of Incentive-Based Compensation It is the policy of Advanced Emissions Solutions, Inc. (the “Company”) that, in the event the Company is required to prepare an accounting restatement of the Company’s financial statements due to the Company’s material non-compliance with any financial reporting requir

March 12, 2024 EX-21.1

Subsidiaries of Arq, Inc.

Exhibit 21.1 Subsidiaries of Arq, Inc. Entity Name State or Country of Organization ACS Land Company, LLC Delaware ADA Analytics, LLC Delaware ADA Analytics Israel Ltd. Israel Arq Solutions, LLC Delaware Arq Solutions (Operations), LLC Delaware Arq Solutions (Red River), LLC Delaware Arq Solutions (Vortex IP), LLC Delaware Arq Solutions (Vortex Operations), LLC Delaware Arq Solutions (ES), Inc. Co

March 12, 2024 EX-10.30

Inducement Award by and between Robert E. Rasmus and Advanced Emissions Solutions, Inc., dated July 17, 2023

Exhibit 10.30 ADVANCED EMISSIONS SOLUTIONS, INC. INDUCEMENT AWARD GRANT NOTICE FOR NONQUALIFIED STOCK OPTIONS FOR GOOD AND VALUABLE CONSIDERATION, Advanced Emissions Solutions, Inc. (the “Company”), hereby grants to Participant named below the Nonqualified Stock Option (the “Option”) to purchase any part or all of the number of shares of common stock, par value $0.001 per share, of the Company (th

March 12, 2024 EX-4.10

Exhibit 4.10

Exhibit 4.10 DESCRIPTION OF REGISTRANT SECURITIES The following descriptions of our capital stock and certain provisions of our second amended and restated certificate of incorporation, our bylaws, as amended, and our Tax Asset Protection Plan (as defined below), as amended, are summaries and are qualified by reference to our second amended and restated certificate of incorporation and bylaws. Our

March 12, 2024 EX-10.4

Form of Performance Stock Unit Agreement under the 2022 Omnibus Incentive Plan

Exhibit 10.4 ADVANCED EMISSIONS SOLUTIONS, INC. LONG TERM INCENTIVE PLAN UNDER THE 2022 OMNIBUS INCENTIVE PLAN Performance Stock Unit Agreement Advanced Emissions Solutions, Inc. (the “Company”), pursuant to its 2023 Long Term Incentive Plan (the “LTIP”) under its 2017 Omnibus Incentive Plan (the “Omnibus Plan”), hereby grants an award of Performance Stock Units to you, the Participant named below

March 12, 2024 EX-10.3

Form of Restricted Stock Award Agreement under the 2022 Omnibus Incentive Pla

Exhibit 10.3 ADVANCED EMISSIONS SOLUTIONS, INC. 2022 OMNIBUS INCENTIVE PLAN RESTRICTED STOCK AWARD AGREEMENT 1.Award of Shares. ADVANCED EMISSIONS SOLUTIONS, INC., a Delaware corporation (the “Company”), hereby awards to the Grantee (the “Grantee”) named in the Notice of Restricted Stock Award (the “Notice”), the Total Number of Shares Awarded set forth in the Notice (the “Shares”), subject to the

March 12, 2024 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-37822 ARQ, INC. (Name of registrant as specified in its charter)

March 12, 2024 EX-95

Mine Safety Disclosure Exhibit

EXHIBIT 95 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations.

March 12, 2024 EX-99.1

Arq Reports Fourth Quarter & Full Year 2023 Results Q4 2023 revenues from foundational Powder Activated Carbon business increase 20% YoY while gross margin improves to 50%, generating Adjusted EBITDA of $7.2 million and Net Income of $3.3 million, wh

Exhibit 99.1 Arq Reports Fourth Quarter & Full Year 2023 Results Q4 2023 revenues from foundational Powder Activated Carbon business increase 20% YoY while gross margin improves to 50%, generating Adjusted EBITDA of $7.2 million and Net Income of $3.3 million, while Granular Activated Carbon growth business remains on schedule for commissioning by Q4 2024 GREENWOOD VILLAGE, Colo., March 12, 2024 -

March 12, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 12, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employer

February 13, 2024 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 8, 2024 ARQ, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Number) (I.R.S. Employ

February 13, 2024 EX-10.1

Amendment To Master Agreement For Supply Of Furnace Products, by and between

Exhibit 10.1 [***] = Certain information that has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential. AMENDMENT TO MASTER AGREEMENT FOR SUPPLY OF FURNACE PRODUCTS This AMENDMENT TO MASTER AGREEMENT FOR SUPPLY OF FURNACE PRODUCTS (this “Amendment”) is entered into on this 8th day of February, 2024 (the “Effective Date

January 31, 2024 EX-3.3

Amended and Restated Bylaws, effective February 1, 2024 (redlined)

Exhibit 3.3 CONFORMED COPY OF THE AMENDED AND RESTATED BYLAWS OF ADVANCED EMISSIONS SOLUTIONSARQ, INC., AS AMENDED ARTICLE I OFFICES Section 1.01 Offices. Advanced Emissions SolutionsArq, Inc. (hereinafter called the “Corporation”) may have offices at such places, both within and without the State of Delaware, as the board of directors of the Corporation (the “Board of Directors”) from time to tim

January 31, 2024 EX-3.1

Certificate of Amendment to the Amended and Restated Certificate of Incorporation, effective February 1, 2024

Exhibit 3.1 STATE OF DELAWARE CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION The corporation organized and existing under the General Corporation Law of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is Advanced Emissions Solutions, Inc. 2. The Certificate of incorporation is hereby amended by changing the article thereof numbered 1 so that, as amended

January 31, 2024 EX-3.2

Amended and Restated Bylaws, effective February 1, 2024

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF ARQ, INC. ARTICLE I OFFICES Section 1.01 Offices. Arq, Inc. (hereinafter called the “Corporation”) may have offices at such places, both within and without the State of Delaware, as the board of directors of the Corporation (the “Board of Directors”) from time to time shall determine or the business of the Corporation may require. Section 1.02 Books and R

January 31, 2024 EX-99.1

Advanced Emissions Solutions Completes Rebrand as Arq and Will Ring NASDAQ Opening Bell on February 1, 2024 Shares to commence trading under the new Nasdaq ticker "ARQ" on February 1, 2024, with Company celebrating event by ringing the Nasdaq opening

Exhibit 99.1 Advanced Emissions Solutions Completes Rebrand as Arq and Will Ring NASDAQ Opening Bell on February 1, 2024 Shares to commence trading under the new Nasdaq ticker "ARQ" on February 1, 2024, with Company celebrating event by ringing the Nasdaq opening bell in New York Reflects strategic evolution to a leading North American environmental technology company GREENWOOD VILLAGE, Colo., Jan

January 31, 2024 SC 13D/A

ADES / Advanced Emissions Solutions, Inc. / McIntyre Julian Alexander - AMENDMENT NO. 1 TO SCHEDULE 13D Activist Investment

SC 13D/A 1 ea192582-13da1mcinadvanced.htm AMENDMENT NO. 1 TO SCHEDULE 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 1)* Advanced Emissions Solutions, Inc. (Name of Issuer) Common stock, par value $0.

January 31, 2024 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 31, 2024 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

January 29, 2024 CORRESP

Advanced Emissions Solutions, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111

Advanced Emissions Solutions, Inc. 8051 E. Maplewood Avenue, Suite 210 Greenwood Village, CO 80111 January 29, 2024 VIA EDGAR U.S. Securities and Exchange Commission Division of Corporation Finance 100 F Street, NE Washington D.C. 20549 Attention: Ms. Abby Adams Re: Advanced Emissions Solutions, Inc. Registration Statement on Form S-3 (File No. 333-276375) Dear Ms. Adams: Advanced Emissions Soluti

January 26, 2024 S-3/A

As filed with the Securities and Exchange Commission on January 25, 2024

As filed with the Securities and Exchange Commission on January 25, 2024 No. 333-276375 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 PRE-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 ON FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ADVANCED EMISSIONS SOLUTIONS, INC. (Exact name of registrant as specified in its charter) Delaware 2890 27-5472457 (State or other

January 26, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables FORM S-3 (Form Type) Advanced Emissions Solutions, Inc.

January 24, 2024 EX-99.1

Advanced Emissions Solutions Signs Contract for Construction of Granular Activated Carbon Expansion at Red River Plant with Wieland Construction team has been mobilized and completion of the 25 million pound expansion is anticipated in Q4 2024

Exhibit 99.1 Advanced Emissions Solutions Signs Contract for Construction of Granular Activated Carbon Expansion at Red River Plant with Wieland Construction team has been mobilized and completion of the 25 million pound expansion is anticipated in Q4 2024 GREENWOOD VILLAGE, Colo., January 24, 2024 (GlobeNewswire) - Advanced Emissions Solutions, Inc. (NASDAQ: ADES) (the "Company" or "ADES"), an en

January 24, 2024 EX-10.1

Contract for Construction, by and between ADA Carbon Solutions (Red River), LLC and The Wieland-Davco Corporation, dated as of

Exhibit 10.1 [***] = Certain information that has been excluded from the exhibit because it is both not material and is the type that the registrant treats as private or confidential. CONTRACT FOR CONSTRUCTION This CONTRACT FOR CONSTRUCTION (“Agreement”) is entered into by and between ADA Carbon Solutions (Red River), LLC, a Delaware limited liability company (together with its successors and perm

January 24, 2024 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 19, 2024 ADVANCED EMISSIONS SOLUTI

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 19, 2024 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

January 4, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables FORM S-1 (Form Type) Advanced Emissions Solutions, Inc.

January 4, 2024 S-1

As filed with the Securities and Exchange Commission on January 4, 2024

As filed with the Securities and Exchange Commission on January 4, 2024 No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 ADVANCED EMISSIONS SOLUTIONS, INC. (Exact name of registrant as specified in its charter) Delaware 2890 27-5472457 (State or other jurisdiction of incorporation or organization) (Pri

January 4, 2024 EX-99.1

Audited consolidated financial statements of Arq Ltd as of December 31, 2022 and December 31, 2021 and for each of the two years in the years then ended, and the notes thereto

ARQ LIMITED Consolidated Financial Statements For the years ended 31 December 2022 and 2021 Report of Independent Auditors To the Board of Directors of Arq Limited Opinion We have audited the consolidated financial statements of Arq Limited (the Company), which comprise the consolidated balance sheet as of 31 December 2022 and 2021, and the related consolidated income statement and other comprehensive income, statement of changes in equity and cash flows for the years then ended, and the related notes (collectively referred to as the “financial statements”).

November 8, 2023 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

November 8, 2023 EX-99.1

Advanced Emissions Solutions Reports Third Quarter 2023 Results Consumables revenue growth and optimization of PAC portfolio drive significant improvements in gross margin

Advanced Emissions Solutions Reports Third Quarter 2023 Results Consumables revenue growth and optimization of PAC portfolio drive significant improvements in gross margin GREENWOOD VILLAGE, Colo.

November 8, 2023 EX-10.1

Employment Agreement by and between Stacia Hansen and Advanced Emissions Solutions, Inc., dated November 6, 2023

ADVANCED EMISSIONS SOLUTIONS, INC. EMPLOYMENT AGREEMENT THIS AGREEMENT made and entered effective November 6, 2023, by and between Advanced Emissions Solutions, Inc., a Delaware corporation, whose principal offices are located at 8051 E. Maplewood, Suite 210, Greenwood Village, CO 80111 (the “Company”), and Stacia Hansen (“Executive”) whose address is Denver, CO 80210. RECITALS: WHEREAS, the Execu

November 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 8, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

November 8, 2023 EX-3.1

Conformed Copy of the Bylaws of Advanced Emissions Solutions, Inc. (filed with the SEC as Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed with the SEC on November 8, 2023 and incorporated herein by reference).

AMENDED AND RESTATED BYLAWS OF ADVANCED EMISSIONS SOLUTIONS, INC. ARTICLE I OFFICES Section 1.1Offices. Advanced Emissions Solutions, Inc. (hereinafter called the “Corporation”) may have offices at such places, both within and without the State of Delaware, as the board of directors of the Corporation (the “Board of Directors”) from time to time shall determine or the business of the Corporation m

November 8, 2023 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solut

November 8, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 6, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

September 18, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 18, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission

September 18, 2023 EX-99.1

Advanced Emissions Solutions Appoints Jeremy "Deke" Williamson as Chief Operating Officer Deke will leverage 20+ years of results-driven operational experience to progress ADES's strategic objectives

Advanced Emissions Solutions Appoints Jeremy "Deke" Williamson as Chief Operating Officer Deke will leverage 20+ years of results-driven operational experience to progress ADES's strategic objectives GREENWOOD VILLAGE, Colo.

September 18, 2023 EX-10.1

Employment Agreement by and between Jeremy D. Williamson and Advanced Emissions Solutions, Inc., dated September 18, 2023

ADVANCED EMISSIONS SOLUTIONS, INC. EMPLOYMENT AGREEMENT THIS AGREEMENT made and entered effective September 18, 2023, by and between Advanced Emissions Solutions, Inc., a Delaware corporation, whose principal offices are located at 8051 E. Maplewood, Suite 210, Greenwood Village, CO 80111 (the “Company”), and Jeremy D. “Deke” Williamson (“Executive”) whose address is Tomball, TX 77375. RECITALS: W

August 9, 2023 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions,

August 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 9, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

August 9, 2023 EX-99.1

Advanced Emissions Solutions Reports Second Quarter 2023 Results Timeline for capital projects remains on track and in line with expectations

Advanced Emissions Solutions Reports Second Quarter 2023 Results Timeline for capital projects remains on track and in line with expectations GREENWOOD VILLAGE, Colo.

August 9, 2023 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

August 3, 2023 8-K/A

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 14, 2023 ADVANCED EMISSIONS SOLUTIO

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 14, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fil

July 25, 2023 EX-99.2

Advanced Emissions Solutions, Inc. Inducement Award Grant Notice for Restricted Stock Unit Award and Standard Terms and Conditions for Restricted Stock Units

ADVANCED EMISSIONS SOLUTIONS, INC. INDUCEMENT AWARD GRANT NOTICE FOR RESTRICTED STOCK UNIT AWARD FOR GOOD AND VALUABLE CONSIDERATION, Advanced Emissions Solutions, Inc. (the “Company”), hereby grants to Participant named below the number of Restricted Stock Units (the “RSUs”) specified below (the “Award”). Each RSU represents the right to receive one share of common stock, par value $0.001 per sha

July 25, 2023 EX-FILING FEES

Filing Fee Table

Exhibit 107.1 Calculation of Filing Fee Tables FORM S-8 (Form Type) ADVANCED EMISSIONS SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title (1) Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common sto

July 25, 2023 S-8

As filed with the Securities and Exchange Commission on July 25, 2023

As filed with the Securities and Exchange Commission on July 25, 2023 Registration No.

July 25, 2023 EX-99.1

Advanced Emissions Solutions, Inc. Inducement Award Grant Notice for Nonqualified Stock Options and Standard Terms and Conditions for Nonqualified Stock Options

ADVANCED EMISSIONS SOLUTIONS, INC. INDUCEMENT AWARD GRANT NOTICE FOR NONQUALIFIED STOCK OPTIONS FOR GOOD AND VALUABLE CONSIDERATION, Advanced Emissions Solutions, Inc. (the “Company”), hereby grants to Participant named below the Nonqualified Stock Option (the “Option”) to purchase any part or all of the number of shares of common stock, par value $0.001 per share, of the Company (the “Common Stoc

July 24, 2023 SC 13D/A

ADES / Advanced Emissions Solutions Inc / Blank Jeremy - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* Advanced Emissions Solutions, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) Jeremy Blank c/o Community Fund 9800 Wilshire Blvd Beverly Hills, CA 90212 (310) 430-7495 (Name, Address

July 17, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 14, 2023 ADVANCED EMISSIONS SOLUTIONS

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 14, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

July 17, 2023 EX-10.2

Employment Agreement by and between Robert E. Rasmus and Advanced Emissions Solutions, Inc., dated July 17, 2023

ADVANCED EMISSIONS SOLUTIONS, INC. EMPLOYMENT AGREEMENT THIS AGREEMENT made and entered into as of July 17, 2023, by and between Advanced Emissions Solutions, Inc., a Delaware corporation, whose principal offices are located at 8051 E. Maplewood, Suite 210, Greenwood Village, CO 80111 (the “Company”), and Robert E. Rasmus (“Executive”) whose address is . RECITALS: WHEREAS, the Company has made Exe

July 17, 2023 EX-10.1

Subscription Agreement by and between Robert E. Rasmus, RER Legacy Investments II LLC and Advanced Emissions Solutions, Inc., dated July 17, 2023.

SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into this July 17, 2023, by and between Advanced Emissions Solutions, Inc.

July 17, 2023 EX-99.1

Advanced Emissions Solutions Announces CEO Transition Board has appointed Robert Rasmus as next Chief Executive Officer effective July 17, 2023

Advanced Emissions Solutions Announces CEO Transition Board has appointed Robert Rasmus as next Chief Executive Officer effective July 17, 2023 GREENWOOD VILLAGE, Colo.

June 15, 2023 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 13, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

June 6, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 2, 2023 ADVANCED EMISSIONS SOLUTIONS,

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 2, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File N

June 6, 2023 EX-10.1

Loan Modification Agreement, among Community Trust Bank, Inc.; Corbin Project LLC, Arq Projects Holding Company LLC, Arq St. Rose LLC, Arq Corbin LLC and Arq Corbin Land LLC, dated as of June 2, 2023

EX-10.1 2 ex101-corbinprojectxctbloa.htm EX-10.1 LOAN MODIFICATION AGREEMENT THIS LOAN MODIFICATION AGREEMENT ("Agreement") is entered into effective as of June 2, 2023 ("Effective Date"), by and among: (i) COMMUNITY TRUST BANK, INC., a Kentucky corporation ("Bank"); (ii) CORBIN PROJECT LLC, ARQ PROJECTS HOLDING COMPANY LLC, ARQ ST. ROSE LLC, ARQ CORBIN LLC and ARQ CORBIN LAND LLC, each a Delaware

May 9, 2023 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 or ☐ TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions

May 9, 2023 EX-99.1

Advanced Emissions Solutions Reports First Quarter 2023 Results Completed the acquisition of Arq Limited's subsidiaries Initiated growth capital projects to expand and diversify product portfolio

Advanced Emissions Solutions Reports First Quarter 2023 Results Completed the acquisition of Arq Limited's subsidiaries Initiated growth capital projects to expand and diversify product portfolio GREENWOOD VILLAGE, Colo.

May 9, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 9, 2023 ADVANCED EMISSIONS SOLUTIONS,

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 9, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Nu

May 9, 2023 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

April 27, 2023 DEFA14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ¨ Defin

April 27, 2023 DEF 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive

April 14, 2023 EX-99.1

Advanced Emissions Solutions Announces Addition to its Board of Directors Laurie Bergman brings deep financial expertise, relevant industry experience and independent leadership to the Board

Advanced Emissions Solutions Announces Addition to its Board of Directors Laurie Bergman brings deep financial expertise, relevant industry experience and independent leadership to the Board GREENWOOD VILLAGE, Colo.

April 14, 2023 PRE 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: x Preliminary Proxy Statement ¨ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ¨ Definitive

April 14, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 11, 2023 ADVANCED EMISSIONS SOLUTION

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 11, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

April 14, 2023 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No. 6) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ADVANCED EMISSIONS SOLUTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No.

April 14, 2023 EX-4.7

Sixth Amendment to Tax Asset Protection Plan, dated as of April 13, 2023 by and between the Company and Computershare Trust Company, N.A., as rights agent (incorporated by reference to Exhibit 4.7 to the Current Report on Form 8-K (File No. 001-37822) filed on April 14, 2023).

Execution Version SIXTH AMENDMENT TO TAX ASSET PROTECTION PLAN This SIXTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this "Amendment") is entered into as of April 13, 2023, by and between Advanced Emissions Solutions, Inc.

March 29, 2023 EX-99.1

Advanced Emissions Solutions Completes Sale of Marshall Mine to Caddo Creek Resource Company Streamlined balance sheet will better support operational focus on growth plans

Advanced Emissions Solutions Completes Sale of Marshall Mine to Caddo Creek Resource Company Streamlined balance sheet will better support operational focus on growth plans GREENWOOD VILLAGE, Colorado, March 29, 2023 - GlobeNewswire - Advanced Emissions Solutions, Inc.

March 29, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 27, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 20, 2023 EX-99.1

[Signature pages follow.]

Exhibit 1 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into this [•] day of January, 2023, by and among Advanced Emissions Solutions, Inc.

March 20, 2023 SC 13D

ADES / Advanced Emissions Solutions Inc / Blank Jeremy - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* Advanced Emissions Solutions, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) Jeremy Blank c/o Community Fund 9800 Wilshire Blvd Beverly Hills, CA 90212 (310) 430-7495 (Name, Address a

March 13, 2023 EX-99.3

Joint Filing Agreement

Exhibit 3 JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned agree that only one statement containing the information required by Schedule 13D and any further amendments thereto needs to be filed with respect to the beneficial ownership by each of the undersigned relating to the shares of Common stock, par value $0.

March 13, 2023 EX-99.2

SUBSCRIPTION AGREEMENT

Exhibit 2 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into this [·] day of January, 2023, by and among Advanced Emissions Solutions, Inc.

March 13, 2023 SC 13D/A

ADES / Advanced Emissions Solutions Inc / Arq Ltd - AMENDMENT NO. 1 TO SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 1 )* Advanced Emissions Solutions, Inc. (Name of Issuer) Common stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) R

March 13, 2023 EX-99.1

REGISTRATION RIGHTS AGREEMENT

Exhibit 1 REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this “Agreement”) is made as of February 1, 2023, by and between Advanced Emissions Solutions Inc.

March 13, 2023 SC 13D

ADES / Advanced Emissions Solutions Inc / McIntyre Julian Alexander - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. )* Advanced Emissions Solutions, Inc. (Name of Issuer) Common stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) McInt

March 8, 2023 EX-10.35

Loan Agreement among Community Trust Bank, Inc.; Corbin Project LLC, Arq Projects Holding Company LLC, Arq St. Rose LLC, Arq Corbin LLC and Arq Corbin Land LLC, dated January 27, 2021

LOAN AGREEMENT (USDA GUARANTEED LOAN) This Loan Agreement (“Agreement”) is entered into and effective as of January 27, 2021, by and among (i) Community Trust Bank, Inc.

March 8, 2023 EX-95

Mine Safety Disclosure Exhibit

EXHIBIT 95 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations.

March 8, 2023 EX-21.1

Subsidiaries of Advanced Emissions Solutions, Inc.

Subsidiaries of Advanced Emissions Solutions, Inc. Entity Name State or Country of Organization ACS Land Company, LLC Delaware ADA Analytics, LLC Delaware ADA Analytics Israel Ltd. Israel ADA Carbon Solutions, LLC Delaware ADA Carbon Solutions (Operations), LLC Delaware ADA Carbon Solutions (Red River), LLC Delaware ADA Carbon Solutions (Vortex IP), LLC Delaware ADA Carbon Solutions (Vortex Operat

March 8, 2023 EX-99.1

Advanced Emissions Solutions Reports Fourth Quarter and Full Year 2022 Results Full year consumables revenue increased 20% driven by increased volumes and pricing initiatives Company expects 2023 revenue of approximately $106 million

EX-99.1 2 a991pressrelease3823.htm EX-99.1 Advanced Emissions Solutions Reports Fourth Quarter and Full Year 2022 Results Full year consumables revenue increased 20% driven by increased volumes and pricing initiatives Company expects 2023 revenue of approximately $106 million GREENWOOD VILLAGE, Colo., March 8, 2023 (GlobeNewswire) - Advanced Emissions Solutions, Inc. (NASDAQ: ADES) (the "Company"

March 8, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 8, 2023 ADVANCED EMISSIONS SOLUTIONS

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 8, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 8, 2023 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-37822 Advanced Emissions Solutions, Inc. (Name of registrant as s

March 2, 2023 8-K/A

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2023 ADVAN

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorpora

March 2, 2023 EX-99.2

1

EX-99.2 4 ex992-arqltdfinancialstate.htm EX-99.2 Exhibit 99.2 ARQ LIMITED Unaudited Condensed Consolidated Interim Financial Statements For the nine months ended 30 September 2022 and 2021 1 ARQ LIMITED Unaudited Consolidated Income Statement and Other Comprehensive Income 9 months ended 30 September Notes 2022 2021 $'000 $'000 Plant operating expenses 5 51,301 4,244 Research and development expen

March 2, 2023 EX-99.1

Report of Independent Auditors

Exhibit 99.1 ARQ LIMITED Consolidated Financial Statements For the years ended 31 December 2021 and 2020 1 Report of Independent Auditors To the Board of Directors of Arq Limited Opinion We have audited the consolidated financial statements of Arq Limited (the Company), which comprise the consolidated balance sheets as of 31 December 2021 and 2020, and the related consolidated statements of income

March 2, 2023 EX-99.3

ADVANCED EMISSIONS SOLUTIONS, INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

Exhibit 99.3 ADVANCED EMISSIONS SOLUTIONS, INC. UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION Acquisition On February 1, 2023 (the "Acquisition Date"), Advanced Emissions Solutions, Inc. ("ADES" or the "Company") entered into a Securities Purchase Agreement (the "Purchase Agreement") with Arq Limited, a company incorporated under the laws of Jersey ("Arq Ltd."), pursuant to which AD

February 14, 2023 SC 13D

ADES / Advanced Emissions Solutions Inc / Arq Ltd - SCHEDULE 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. )* Advanced Emissions Solutions, Inc. (Name of Issuer) Common stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) Richa

February 1, 2023 EX-3.1

Certificate of Designations of Series A Preferred Stock

Execution Version ADVANCED EMISSIONS SOLUTIONS, INC. CERTIFICATE OF DESIGNATIONS Pursuant to Section 151 of the General Corporation Law of the State of Delaware SERIES A CONVERTIBLE PREFERRED STOCK (Par Value $0.001 Per Share) Advanced Emissions Solutions, Inc. (the “Corporation”), a corporation organized and existing under and by virtue of the provisions of the General Corporation Law of the Stat

February 1, 2023 EX-99.2

Advanced Emissions Solutions, Inc. Nasdaq: ADES Advanced Emissions Solutions Announces Acquisition of Arq February 1, 2023 2 This presentation includes forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 193

ex992ades-arqxacquisitio Advanced Emissions Solutions, Inc. Nasdaq: ADES Advanced Emissions Solutions Announces Acquisition of Arq February 1, 2023 2 This presentation includes forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, which provides a “safe harbor” for such statements in certain circumstances. When used in this presentation, the words “ca

February 1, 2023 EX-10.2

Term Loan and Security Agreement among Advanced Emissions Solutions, Inc., as Debtor, Certain Subsidiaries of Debtor, as Guarantors, CF Global Credit, LP, as Administrative Agent, and the Lenders, from time to time party hereto, dated as of February 1, 2023

FOR PURPOSES OF SECTIONS 1272, 1273 AND 1275 OF THE INTERNAL REVENUE CODE, THE LOANS HEREUNDER ARE BEING ISSUED WITH ORIGINAL ISSUE DISCOUNT.

February 1, 2023 EX-10.1

Registration Rights Agreement

REGISTRATION RIGHTS AGREEMENT This Registration Rights Agreement (this “Agreement”) is made as of February 1, 2023, by and between Advanced Emissions Solutions Inc.

February 1, 2023 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2023 ADVANCED EMISSIONS SOLUTI

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 1, 2023 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

February 1, 2023 EX-4.1

Form of Warrant

EXECUTION COPY WARRANT THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “ACT”), OR THE SECURITIES LAWS OF ANY STATE AND MAY NOT BE TRANSFERRED, SOLD OR OTHERWISE DISPOSED OF EXCEPT WHILE A REGISTRATION STATEMENT RELATING THERETO IS IN EFFECT UNDER SUCH ACT AND APPLICABLE STATE SECURITIES LAWS OR PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT OR SUCH LAWS.

February 1, 2023 EX-2.1

Securities Purchase Agreement, dated as of February 1, 2023, by and among Advanced Emissions Solutions, Inc. and Arq Limited

Execution Version SECURITIES PURCHASE AGREEMENT between ADVANCED EMISSIONS SOLUTIONS, INC.

February 1, 2023 EX-99.1

Advanced Emissions Solutions Completes Acquisition of Arq Limited’s Business Revised transaction structure results in ADES acquiring 100% of the equity interests of Arq Limited subsidiaries in exchange for issuance of preferred shares Final ownership

Advanced Emissions Solutions Completes Acquisition of Arq Limited’s Business Revised transaction structure results in ADES acquiring 100% of the equity interests of Arq Limited subsidiaries in exchange for issuance of preferred shares Final ownership terms results in legacy ADES shareholders retaining 59% of the outstanding equity GREENWOOD VILLAGE, Colorado, February 1, 2023 - GlobeNewswire - Advanced Emissions Solutions, Inc.

November 10, 2022 425

On November 9, 2022, Advanced Emissions Solutions, Inc. (“ADES”) participated in the following presentation that included a discussion of the proposed business combination between ADES and Arq Limited:

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) On November 9, 2022, Advanced Emissions Solutions, Inc. (?ADES?) participated in the following presentation that

November 9, 2022 425

Advanced Emissions Solutions, Inc. Advancing Cleaner Energy Third Quarter 2022 Earnings Results Call November 9, 2022 1 2 Safe Harbor This presentation includes forward-looking statements within the meaning of Section 21E of the Securities Exchange A

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) Advanced Emissions Solutions, Inc. posted the following presentation to its website on November 8, 2022: Advanced

November 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 8, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

November 8, 2022 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solut

November 8, 2022 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

November 8, 2022 EX-99.1

Advanced Emissions Solutions Reports Third Quarter 2022 Results Consumables revenue up 27% year-to-date driven by increased volumes and pricing initiatives Announced proposed merger with Arq to further vertically integrate portfolio of assets and lev

Advanced Emissions Solutions Reports Third Quarter 2022 Results Consumables revenue up 27% year-to-date driven by increased volumes and pricing initiatives Announced proposed merger with Arq to further vertically integrate portfolio of assets and leverage bituminous feedstock to better compete in new markets GREENWOOD VILLAGE, Colo.

November 7, 2022 425

Advanced Emissions Solutions Announces Filing of Registration Statement on Form S-4 in Connection with Its Proposed Business Combination with Arq Limited

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) The following press release was issued by Advanced Emissions Solutions, Inc. on November 7, 2022: Advanced Emissi

September 6, 2022 EX-10.1

Membership Interest Purchase Agreement between Caddo Creek Resources Company, L.L.C., as Buyer, and ADA Carbon Solutions (Operations), LLC, as Seller dated as of September 2, 2022

[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETS, HAS BEEN OMITTED BECAUSE THE INFORMATION (I) IS NOT MATERIAL AND (II) WOULD BE COMPETITIVELY HARMFUL IF PUBLICLY DISCLOSED.

September 6, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 2, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission F

September 6, 2022 EX-99.1

Advanced Emissions Solutions Announces Sale of Marshall Mine, LLC to Caddo Creek Resources Company, L.L.C. Elimination of asset retirement obligation strengthens the Company’s balance sheet and provides operational focus

Advanced Emissions Solutions Announces Sale of Marshall Mine, LLC to Caddo Creek Resources Company, L.

August 23, 2022 425

The following communication was posted on August 23, 2022 at www.linkedin.com by Greg Marken, Chief Executive Officer of Advanced Emissions Solutions, Inc. that discuss the transaction agreement with Arq Limited:

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) The following communication was posted on August 23, 2022 at www.linkedin.com by Greg Marken, Chief Executive Off

August 23, 2022 425

On August 22, 2022, Advanced Emissions Solutions, Inc. participated in a presentation regarding the signing of the Transaction Agreement with Arq Limited:

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) On August 22, 2022, Advanced Emissions Solutions, Inc. participated in a presentation regarding the signing of th

August 22, 2022 425

On August 19, 2022, Advanced Emissions Solutions, Inc. sent the following email to its employees:

Filed by Advanced Emissions Solutions, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended, and deemed filed pursuant to Rule 14a-12 of the Securities Exchange Act of 1934, as amended Subject Company: Advanced Emissions Solutions, Inc. (Commission File No. 001-37822) On August 19, 2022, Advanced Emissions Solutions, Inc. sent the following email to its employees: Dear Colleagues

August 19, 2022 EX-99.2

Advanced Emissions Solutions, Inc. Advanced Emissions Solutions, Inc. and Arq Limited Announce Transaction Agreement August 22, 2022 1 Safe Harbor 2 This presentation includes forward-looking statements within the meaning of Section 21E of the Securi

Advanced Emissions Solutions, Inc. Advanced Emissions Solutions, Inc. and Arq Limited Announce Transaction Agreement August 22, 2022 1 Safe Harbor 2 This presentation includes forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, which provides a ?safe harbor? for such statements in certain circumstances. When used in this presentation, the words ?can

August 19, 2022 EX-99.1

Advanced Emissions Solutions Announces Merger with Arq Limited Merger expected to provide access to growth opportunities in adjacent markets, create sustainable competitive advantages, and enhance the profitability of ADES’ product portfolio Combined

Advanced Emissions Solutions Announces Merger with Arq Limited Merger expected to provide access to growth opportunities in adjacent markets, create sustainable competitive advantages, and enhance the profitability of ADES? product portfolio Combined entity projected to generate $196 million of annual Revenue and $61 million in annual EBITDA by 2026 GREENWOOD VILLAGE, Colorado, August 19, 2022 - GlobeNewswire - Advanced Emissions Solutions, Inc.

August 19, 2022 EX-2.1

, 2022, by and among Advanced Emissions Solutions, Inc., Elbert Holdings, Inc., Elbert Merger Sub 1, Inc., and Arq Limited*

Execution Version TRANSACTION AGREEMENT among ADVANCED EMISSIONS SOLUTIONS, INC. a Delaware corporation, ELBERT HOLDINGS, INC., a Delaware corporation, ELBERT MERGER SUB 1, INC., a Delaware corporation, and ARQ LIMITED a Jersey limited company Dated as of August 19, 2022 TABLE OF CONTENTS Page Section 1 THE TRANSACTIONS 2 1.1 ADES Merger 2 1.2 Arq Share Acquisition 3 1.3 Closing 3 1.4 Effective Ti

August 19, 2022 EX-10.1

Form of Voting and Election Agreement

VOTING AND ELECTION AGREEMENT THIS VOTING AND ELECTION AGREEMENT (this ?Agreement?) is made and entered into as of August 19, 2022, by and among Advanced Emissions Solutions, Inc.

August 19, 2022 EX-10.2

Form of Subscription Agreement

EX-10.2 4 ex102-subscriptionagreement.htm EX-10.2 SUBSCRIPTION AGREEMENT This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into this 19th day of August, 2022, by and among Elbert Holdings, Inc., a Delaware corporation (the “Issuer”), and the undersigned (“Subscriber”). WHEREAS, substantially concurrently with the execution and delivery of this Subscription Agreement, the Issue

August 19, 2022 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 19, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fil

August 15, 2022 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions,

August 15, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 15, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fil

August 15, 2022 EX-99.1

Advanced Emissions Solutions Reports Second Quarter 2022 Results Consumables revenue growth of 42% compared to the prior year Production volume at Red River plant above expectations for the quarter, demand remains very strong across end markets

Advanced Emissions Solutions Reports Second Quarter 2022 Results Consumables revenue growth of 42% compared to the prior year Production volume at Red River plant above expectations for the quarter, demand remains very strong across end markets GREENWOOD VILLAGE, Colorado, August 15, 2022 - GlobeNewswire - Advanced Emissions Solutions, Inc.

August 15, 2022 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

August 11, 2022 S-8 POS

As filed with the Securities and Exchange Commission on August 11, 2022

As filed with the Securities and Exchange Commission on August 11, 2022 Registration No.

June 30, 2022 EX-99.1

Advanced Emissions Solutions, Inc. 2022 Omnibus Incentive Plan.

ADVANCED EMISSIONS SOLUTIONS, INC. 2022 OMNIBUS INCENTIVE PLAN (Approved by stockholders on May 16, 2022) 1. ESTABLISHMENT, OBJECTIVES AND DURATION. (a) Establishment of the Plan. Advanced Emissions Solutions, Inc. hereby establishes an incentive compensation plan to be known as the "Advanced Emissions Solutions, Inc. 2022 Omnibus Incentive Plan." The Plan permits the granting of Nonqualified Stoc

June 30, 2022 EX-FILING FEES

Filing Fee Table.

Exhibit 107.1 Calculation of Filing Fee Tables FORM S-8 (Form Type) ADVANCED EMISSIONS SOLUTIONS, INC. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title (1) Fee Calculation Rule (2) Amount Registered Proposed Maximum Offering Price Per Unit (2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Co

June 30, 2022 S-8

As filed with the Securities and Exchange Commission on June 30, 2022

S-8 1 adess-82022.htm S-8 As filed with the Securities and Exchange Commission on June 30, 2022 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Advanced Emissions Solutions, Inc. (Exact name of registrant as specified in its charter) Delaware 27-5472457 (State or other jurisdiction of inc

May 17, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 16, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File N

May 17, 2022 EX-10.1

Advanced Emissions Solutions, Inc. 2022 Omnibus Incentive Plan

ADVANCED EMISSIONS SOLUTIONS, INC. 2022 OMNIBUS INCENTIVE PLAN (Approved by stockholders on May 16, 2022) 1. ESTABLISHMENT, OBJECTIVES AND DURATION. (a) Establishment of the Plan. Advanced Emissions Solutions, Inc. hereby establishes an incentive compensation plan to be known as the "Advanced Emissions Solutions, Inc. 2022 Omnibus Incentive Plan." The Plan permits the granting of Nonqualified Stoc

May 9, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 9, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File Nu

May 9, 2022 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

May 9, 2022 EX-99.1

Advanced Emissions Solutions Reports First Quarter 2022 Results Consumables revenue growth of 42% compared to the prior year, production volume at Red River plant above expectations

Advanced Emissions Solutions Reports First Quarter 2022 Results Consumables revenue growth of 42% compared to the prior year, production volume at Red River plant above expectations GREENWOOD VILLAGE, Colorado, May 9, 2022 - GlobeNewswire - Advanced Emissions Solutions, Inc.

May 9, 2022 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions

May 9, 2022 EX-10.1

Form of Amended Retention Agreement dated May 8, 2022 of Greg Marken, Morgan Fields and Joe Wong

AMENDMENT TO THE 2021 RETENTION AGREEMENT The following is an Amendment to the 2021 Retention Agreement (the ?Amendment?), by and between [NAME] (referred to as ?you,? or ?your?) and ADES, Inc.

May 5, 2022 DEFA14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 29, 2022 DEF 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Definitive

March 16, 2022 8-K

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 15, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 16, 2022 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No. 5) FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 ADVANCED EMISSIONS SOLUTION

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No.

March 16, 2022 EX-4.6

Fifth Amendment to Tax Asset Protection Plan dated as of March 15, 2022, by and between the Company and Computershare Trust Company, N.A., as rights agent

Execution Version FIFTH AMENDMENT TO TAX ASSET PROTECTION PLAN This FIFTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this "Amendment") is entered into as of March 15, 2022, by and between Advanced Emissions Solutions, Inc.

March 16, 2022 PRE 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: x Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Definitive

March 8, 2022 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-37822 Advanced Emissions Solutions, Inc. (Name of registrant as s

March 8, 2022 EX-21

Subsidiaries of Advanced Emissions Solutions, Inc.

Subsidiaries of Advanced Emissions Solutions, Inc. Entity Name State or Country of Organization Advanced Emissions Solutions, Inc. Delaware ACS Land Company, LLC Delaware ADA Analytics, LLC Delaware ADA Analytics Israel Ltd. Israel ADA Carbon Solutions, LLC Delaware ADA Carbon Solutions (Operations), LLC Delaware ADA Carbon Solutions (Red River), LLC Delaware ADA Carbon Solutions (Vortex IP), LLC

March 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 8, 2022 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 8, 2022 EX-95

Mine Safety Disclosure Exhibit

EXHIBIT 95 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations.

March 8, 2022 EX-99.1

Advanced Emissions Solutions Reports Fourth Quarter and Full Year 2021 Results Full year earnings per share of $3.27, APT segment delivers record full year revenue

Advanced Emissions Solutions Reports Fourth Quarter and Full Year 2021 Results Full year earnings per share of $3.

February 14, 2022 SC 13G/A

ADES / Advanced Emissions Solutions Inc / Apollo Management Holdings GP, LLC - SCHEDULE 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. 1)* Under the Securities Exchange Act of 1934 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

February 10, 2022 SC 13G/A

ADES / Advanced Emissions Solutions Inc / ADAGE CAPITAL PARTNERS GP, L.L.C. - ADVANCED EMISSIONS SOLUTIONS, INC. Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Advanced Emissions Solutions, Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 00770C101 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the

November 9, 2021 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

November 9, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 9, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fi

November 9, 2021 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solut

November 9, 2021 EX-99.1

Advanced Emissions Solutions Reports Third Quarter 2021 Results APT segment reports record quarter and year-over-year revenue growth of 56%; Company updates RC cash flow estimate

Advanced Emissions Solutions Reports Third Quarter 2021 Results APT segment reports record quarter and year-over-year revenue growth of 56%; Company updates RC cash flow estimate GREENWOOD VILLAGE, Colorado, November 9, 2021 - GlobeNewswire - Advanced Emissions Solutions, Inc.

August 18, 2021 8-K

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 12, 2021 ADVANCED EMISSIONS SOLUTIO

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 12, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission Fil

August 9, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 9, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

August 9, 2021 EX-95.1

Mine Safety Disclosure Exhibit*

EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practices and conduct training to help ensure that our em

August 9, 2021 EX-99.1

Advanced Emissions Solutions Reports Second Quarter 2021 Results Company reports continued improvement in APT segment, updates forecast for expected future after-tax net RC cash flows of $30 million to $40 million

Advanced Emissions Solutions Reports Second Quarter 2021 Results Company reports continued improvement in APT segment, updates forecast for expected future after-tax net RC cash flows of $30 million to $40 million GREENWOOD VILLAGE, Colorado, August 9, 2021 - GlobeNewswire - Advanced Emissions Solutions, Inc.

August 9, 2021 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions,

July 29, 2021 8-K

Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 27, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

July 29, 2021 EX-10.1

Sixteenth Amendment of 2013 Loan and Security Agreement by and among ADA-ES,Inc., Advanced Emissions Solutions, Inc., and BOK, NA d/b/a Bank of Oklahoma dated as of July 29, 2021

Execution Version SIXTEENTH AMENDMENT OF 2013 LOAN AND SECURITY AGREEMENT THIS SIXTEENTH AMENDMENT OF 2013 LOAN AND SECURITY AGREEMENT (?Sixteenth Amendment?) is made as of the 29th day of July, 2021 (the ?Effective Date?) by and among ADA-ES, INC.

June 17, 2021 8-K

Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 15, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

June 3, 2021 8-K

Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 1, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File N

June 3, 2021 EX-99.1

Advanced Emissions Solutions Repays Outstanding Term Loan Balance Elimination of term loan further bolsters financial position and strength

Advanced Emissions Solutions Repays Outstanding Term Loan Balance Elimination of term loan further bolsters financial position and strength GREENWOOD VILLAGE, Colo.

May 10, 2021 10-Q

Quarterly Report - 10-Q

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 or ? TRANSITION REPORT PURSUANT TO 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-37822 Advanced Emissions Solutions

May 10, 2021 EX-10.4

Form of Retention Agreement dated May 5, 2021 of Greg Marken and Morgan Fields

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETED ASTERISKS [*], HAS BEEN OMITTED PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934.

May 10, 2021 EX-99.1

Advanced Emissions Solutions Reports First Quarter 2021 Results Company reports improved performance in APT segment and updates forecast for expected future after-tax net RC cash flows to be between $50 million to $60 million

Advanced Emissions Solutions Reports First Quarter 2021 Results Company reports improved performance in APT segment and updates forecast for expected future after-tax net RC cash flows to be between $50 million to $60 million GREENWOOD VILLAGE, Colorado, May 10, 2021 - GlobeNewswire - Advanced Emissions Solutions, Inc.

May 10, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 10, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File N

May 10, 2021 EX-10.5

Retention Agreement dated May 5, 2021 between the Company and Joe Wong

CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY BRACKETED ASTERISKS [*], HAS BEEN OMITTED PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934.

May 10, 2021 EX-95.1

Mine Safety Disclosure Exhibit*

EX-95.1 7 exhibit951minesafetyq12021.htm EX-95.1 EXHIBIT 95.1 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations. The health and safety of our employees and limiting the impact to communities in which we operate are critical to our long-term success. We employ practice

April 27, 2021 DEF 14A

- DEF 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) x Definitive

April 23, 2021 8-K

Financial Statements and Exhibits, Other Events

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 22, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

April 23, 2021 EX-99.1

Advanced Emissions Solutions Provides Update on Red River Plant Incident

Advanced Emissions Solutions Provides Update on Red River Plant Incident GREENWOOD VILLAGE, Colo.

April 13, 2021 PRE 14A

- PRE 14A

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ? Check the appropriate box: x Preliminary Proxy Statement ? Confidential, for use of the Commission only (as permitted by Rule 14a-6(e)(2)) ? Definitive

April 13, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 8, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

April 13, 2021 EX-4.5

Fourth Amendment to Tax Asset Protection Plan, dated as of April 9, 2021 by and between the Company and Computershare Trust Company, N.A., as rights agent (incorporated by reference to Exhibit 4.5 to the Current Report on Form 8-K (File No. 001-37822) filed on April 13, 2021).

Execution Version FOURTH AMENDMENT TO TAX ASSET PROTECTION PLAN This FOURTH AMENDMENT TO TAX ASSET PROTECTION PLAN (this ?Amendment?) is entered into as of April 9, 2021, by and between Advanced Emissions Solutions, Inc.

April 13, 2021 8-A12B/A

- 8-A12B/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 8-A/A (Amendment No.

March 29, 2021 EX-10.1

Fifteenth Amendment of 2013 Loan and Security Agreement by and among ADA-ES,Inc., Advanced Emissions Solutions, Inc., and BOK, NA d/b/a Bank of Oklahoma dated as of March 23, 2021

EX-10.1 2 ex101-15thamendmenttolineo.htm EX-10.1 Execution Version FIFTEENTH AMENDMENT OF 2013 LOAN AND SECURITY AGREEMENT THIS FIFTEENTH AMENDMENT OF 2013 LOAN AND SECURITY AGREEMENT (“Fifteenth Amendment”) is made as of the 23rd day of March, 2021 (the “Effective Date”) by and among ADA-ES, INC., a Colorado corporation (“Borrower”), ADVANCED EMISSIONS SOLUTIONS, INC., a Delaware corporation, as

March 29, 2021 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 23, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 10, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

U.S. SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 10, 2021 ADVANCED EMISSIONS SOLUTIONS, INC. (Name of registrant as specified in its charter) Delaware 001-37822 27-5472457 (State or other jurisdiction of incorporation) (Commission File

March 10, 2021 EX-95

Mine Safety Disclosure Exhibit

EXHIBIT 95 Mine Safety and Health Administration Safety Data We are committed to maintaining a safe work environment and working to ensure environmental compliance across all of our operations.

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