SHIM / Shimmick Corporation - SEC Filings, Annual Report, Proxy Statement

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): August 14, 2025 Shimmick Corporat

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): August 14, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission Fi

Shimmick Corporation Announces Second Quarter 2025 Results

Exhibit 99.1 Shimmick Corporation Announces Second Quarter 2025 Results Irvine, CA, August 14, 2025 – Shimmick Corp. (NASDAQ: SHIM), a leading infrastructure solutions provider in water, climate resilience, energy transition and sustainable transportation, today announced financial results for the second quarter ended July 4, 2025. Second Quarter 2025 and Recent Highlights • Reported revenue of $1

Amendment No. 6 to Credit, Security and Guaranty Agreement, dated August 8, 2025, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto

Execution Version AMENDMENT NO. 6 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 6 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 8th day of August, 2025 (the “Sixth Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORAT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

fROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended July 4, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

[Signature Page Follows]

July 8, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

As filed with the Securities and Exchange Commission on July 3, 2025.

As filed with the Securities and Exchange Commission on July 3, 2025. Registration No. 333- SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Shimmick Corporation (Exact name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 84-3749368 (I.R.S. Employer Identific

Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE TABLE FORM S-3 (Form type) Shimmick Corporation (Exact name of Registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share(2) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

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): June 4, 2025 Shimmick Corporation

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): June 4, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

Amendment No. 4 to Credit, Security and Guaranty Agreement, dated March 31, 2025, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto

Execution Version AMENDMENT NO. 4 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 4 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Amendment”) is made as of this 31st day of March, 2025 (the “Fourth Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORA

Shimmick Corporation Announces First Quarter 2025 Results

Exhibit 99.1 Shimmick Corporation Announces First Quarter 2025 Results Irvine, CA, May 14, 2025 – Shimmick Corp. (NASDAQ: SHIM), a leading infrastructure solutions provider in water, climate resilience, energy transition and sustainable transportation, today announced financial results for the first quarter ended April 4, 2025. Highlights • Reported revenue of $122 million, which includes $93 mill

Amendment No. 5 to Credit, Security and Guaranty Agreement, dated May 12, 2025, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto

Execution Version AMENDMENT NO. 5 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 5 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 12th day of May, 2025 (the “Fifth Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORATIO

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): May 14, 2025 Shimmick Corporation

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): May 14, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended April 4, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

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

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 Filed by the Registrant ☒ 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)) ☒ Definitive Proxy State

Shimmick Announces Chief Financial Officer Transition Todd Yoder Appointed Executive Vice President and Chief Financial Officer Interim Chief Financial Officer Amanda Mobley Appointed Chief Accounting Officer

Shimmick Announces Chief Financial Officer Transition Todd Yoder Appointed Executive Vice President and Chief Financial Officer Interim Chief Financial Officer Amanda Mobley Appointed Chief Accounting Officer IRVINE, Calif.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): April 8, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

Offer Letter, between Shimmick Corporation and Todd Yoder, dated March 18, 2025

March 18, 2025 Dear Todd, 901 Blackburn Rd Sewickley, PA 15143 On behalf of Shimmick Corporation (the “Company”), we are pleased to offer you the full-time position of Executive Vice President and Chief Financial Officer, reporting to the Chief Executive Officer.

Entry into 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): March 31, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission Fil

Form of Guaranty Agreement

GUARANTY AGREEMENT (Corporate) THIS GUARANTY AGREEMENT (this “Guaranty”) is executed and delivered by Shimmick Corporation ("Guarantor") in favor of AQCF Titling Trust, an affiliate of Ansley Park Capital LLC, its successors and assigns ("Lender"), in connection with that certain Loan and Security Agreement dated as of March 31, 2025 (the “Loan Agreement”), by and between Lender and Rust Constructors Inc.

Loan and Security Agreement, dated March 31, 2025, by and between AQCF Titling Trust, Rust Constructors Inc. and The Leasing Corporation

LOAN AND SECURITY AGREEMENT THIS LOAN AND SECURITY AGREEMENT (this “Agreement”) is made as of the 31st day of March, 2025, by and between AQCF Titling Trust, a Delaware Trust and an affiliate of Ansley Park Capital LLC, a Delaware limited liability company (“Lender”) and Rust Constructors Inc.

Form of Promissory Note

PROMISSORY NOTE NO. 001 (FIXED RATE) $7,513,268.00 March 31, 2025 For value received, the receipt and sufficiency of which are hereby acknowledged, Rust Constructors Inc. and The Leasing Corporation (collectively, jointly and severally the "Borrowers"), hereby promises to pay to the order of AQCF Titling Trust, an affiliate of Ansley Park Capital LLC (together with its successors and assigns, “Len

List of Subsidiaries of Shimmick Corporation

Exhibit 21.1 LIST OF SUBSIDIARIES OF SHIMMICK CORPORATION Entity Name Jurisdiction of Organization Rust Constructors, Inc. Delaware Shimmick Construction Company, Inc. California The Leasing Corporation Nevada Gilcrease Constructors Oklahoma 21stCentury Rail Corporation Delaware Gilcrease Holding Company LLC Oklahoma Gilcrease Developers LLC Oklahoma Shimmick/Traylor/Granite JV California Shimmick

Description of Securities (incorporated by reference to Exhibit 4.1 of Shimmick Corporation’s Annual Report on Form 10-K filed on March 28, 2024).

Exhibit 4.1 DESCRIPTION OF CAPITAL STOCK The following describes common stock and preferred stock of Shimmick Corporation (“Shimmick,” “we,” “our,” “us,” “its” or the “Company”) and certain terms of our amended and restated certificate of incorporation and amended and restated bylaws. This description is a summary only and is subject to the complete text of our amended and restated certificate of

Amendment No. 3 to Credit, Security and Guaranty Agreement, dated March 12, 2025, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto

Execution Version AMENDMENT NO. 3 AND LIMITED WAIVER TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 3 AND LIMITED WAIVER TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Amendment”) is made as of this 12th day of March, 2025 (the “Third Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Dela

Amendment No. 2 to Credit, Security and Guaranty Agreement, dated January 30, 2025, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto

Execution Version AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 30th day of January, 2025 (the “Second Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPO

Insider Trading Policy

SHIMMICK CORPORATION INSIDER TRADING COMPLIANCE POLICY (As adopted on November 13, 2023) This Policy concerns the handling of material, non-public information relating to Shimmick Corporation (“Shimmick”, the “Company”, “our” or “we”) or other companies with which we deal and with the buying and selling of stock and other securities of Shimmick and such other companies.

Credit, Security and Guaranty Agreement, dated March 12, 2025, by and among Shimmick Corporation, Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, AFC FINCO I LP and other parties thereto

EXECUTION VERSION CREDIT AGREEMENT by and among ACF FINCO I LP, as Agent, THE LENDERS THAT ARE PARTIES HERETO, as the Lenders, SHIMMICK CORPORATION, as Holdings, and SHIMMICK CONSTRUCTION COMPANY, INC.

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 (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended January 3, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 001-41867 Shimmick Corporat

Shimmick Corporation Announces Fourth Quarter and Fiscal Year 2024 Results

Exhibit 99.1 Shimmick Corporation Announces Fourth Quarter and Fiscal Year 2024 Results Irvine, CA, March 13, 2025 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the fourth quarter and fiscal year ended January 3, 2025. Highlights • Reported revenue of $104 million, which includes $80 million of Shimmick Projects revenue, for Q4 2024,

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): March 13, 2025 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission Fil

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing

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): November 25, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

Shimmick Announces New CEO Ural Yal Appointed CEO of Shimmick Steve Richards to Retire after Distinguished 43-Year Career

Shimmick Announces New CEO Ural Yal Appointed CEO of Shimmick Steve Richards to Retire after Distinguished 43-Year Career Irvine, CA, November 12, 2024 – Shimmick Corp.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, 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): November 12, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

Employment and Transition Agreement, between Shimmick Corporation and Steven E. Richards, dated November 12, 2024

EMPLOYMENT AND TRANSITION AGREEMENT This Employment and Transition Agreement (this “Agreement”) is made and entered into effective as of the November 12, 2024 (the “Effective Date”) between Shimmick Corporation, a Delaware corporation (the “Company”) and Steven E.

Offer Letter, between Shimmick Corporation and Ural Yal, dated November 12, 2024

November 12, 2024 5565 Mountain View Pl Yorba Linda, CA 92886 Dear Ural, On behalf of Shimmick Corporation (the “Company”), we are pleased to offer you the full-time position of Chief Executive Officer, reporting to the Board of Directors of Shimmick (the “Board”) pursuant to the terms set forth in this letter (“Agreement”).

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): November 12, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 27, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

Shimmick Corporation Announces Third Quarter 2024 Results

Exhibit 99.1 Shimmick Corporation Announces Third Quarter 2024 Results Irvine, CA, November 12, 2024 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the third quarter ended September 27, 2024. Third Quarter 2024 and Recent Highlights • Settlement in the Company’s Golden Gate Bridge ("GGB") Project which will result in $97 million of ca

Shimmick Reaches $97 million Golden Gate Bridge Project Settlement Resolves Last Major Outstanding Claim, Updates Transformation Plan and Provides Certain Preliminary Financial Results of the Third Quarter of Fiscal 2024

Shimmick Reaches $97 million Golden Gate Bridge Project Settlement Resolves Last Major Outstanding Claim, Updates Transformation Plan and Provides Certain Preliminary Financial Results of the Third Quarter of Fiscal 2024 Irvine, Calif.

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): October 31, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission F

SHIM / Shimmick Corporation / Aecom - 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. 2)* Shimmick Corporation (Name of Issuer) Common stock, par value $0.01 per share (Title of Class of Securities) 82455M109 (CUSIP Number) David Y. Gan Executive Vice President, Chief Legal Officer AECOM 300 South Grand Avenue Los Angeles, CA 90071 (213) 593-

Amendment No. 5 to Credit, Security and Guaranty Agreement, dated September 25, 2024, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto

Execution Version AMENDMENT NO. 5 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 5 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of September 25, 2024 (the “Fifth Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORATION, a Nev

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 25, 2024 Shimmick Corpo

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 25, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

Amendment No. 1 to Credit, Security and Guaranty Agreement, dated September 25, 2024, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto (incorporated by reference to Exhibit 10.2 to the Issuer’s Current Report on Form 8-K filed with the SEC on September 26, 2024)

Execution Version 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 this 25th day of September, 2024 (the “First Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORP

Settlement Agreement, dated August 8, 2024, between Shimmick Corporation and United States Army Corps of Engineers

ARMED SERVICES BOARD OF CONTRACT APPEALS Appeals of - ) ) Shimmick Construction Company, Inc.

Amendment No. 4 to Credit, Security and Guaranty Agreement, dated August 14, 2024, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto

Execution Version AMENDMENT NO. 4 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 4 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of August 14, 2024 (the “Fourth Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORATION, a Nevad

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 28, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

Amendment No. 1 to Standard Offer Agreement for Purchase of Real Estate, dated August 9, 2024, between Shimmick Corporation and Alterra IOS Acquisitions III, LLC

FIRST AMENDMENT TO STANDARD OFFER, AGREEMENT AND ESCROW INSTRUCTIONS FOR PURCHASE OF REAL ESTATE THIS FIRST AMENDMENT TO STANDARD OFFER, AGREEMENT AND ESCROW INSTRUCTIONS FOR PURCHASE OF REAL ESTATE (the “Amendment”) is entered into August , 2024 (the “Effective Date”) by and between SHIMMICK CONSTRUCTION COMPANY, INC.

Shimmick Corporation Announces Second Quarter 2024 Results - Provides Update on Transformation Plan

Exhibit 99.1 Shimmick Corporation Announces Second Quarter 2024 Results - Provides Update on Transformation Plan Irvine, CA, August 15, 2024 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the second quarter ended June 28, 2024. Second Quarter 2024 and Recent Highlights • A settlement agreement on litigation on one of the two Legacy Lo

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): August 15, 2024 Shimmick Corporat

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): August 15, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission Fi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC FILE NUMBER: 001-41867 CUSIP NUMBER: 82455M109

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC FILE NUMBER: 001-41867 CUSIP NUMBER: 82455M109 (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 29, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Tran

Submission of Matters to a Vote of Security Holders

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): June 5, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

Current Report

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): June 26, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

SHIM / Shimmick Corporation / Aecom - 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 )* Shimmick Corporation (Name of Issuer) Common stock, par value $0.01 per share (Title of Class of Securities) 82455M109 (CUSIP Number) David Y. Gan Executive Vice President, Chief Legal Officer AECOM 300 South Grand Avenue Los Angeles, CA 90071 (213) 593

Escrow Services Agreement, dated June 24, 2024, by and among Shimmick Corporation, AECOM and Equiniti Trust Company, LLC *

EX-99.6 2 tm2418272d1ex99-6.htm EXHIBIT 99.6 Exhibit 99.6 Execution Version ESCROW SERVICES AGREEMENT THIS ESCROW Services Agreement (this “Agreement”), dated as of June 24, 2024 (the “Effective Date”), is entered into by and among Shimmick Corporation, a Delaware corporation (“Depositor” or “Issuer”), AECOM, a Delaware corporation (“Recipient”), and EQUINITI Trust Company, LLC, a New York limited

Shimmick announces new Interim CFO to Further Deliver on its Transformation into a Water Infrastructure Company Promotes Amanda Mobley to focus on Improving Project Results

Shimmick announces new Interim CFO to Further Deliver on its Transformation into a Water Infrastructure Company Promotes Amanda Mobley to focus on Improving Project Results IRVINE, Calif.

Separation Agreement, by and between Shimmick Corporation and Devin J. Nordhagen, dated June 20, 2024

SEPARATION AGREEMENT AND GENERAL RELEASE This SEPARATION AGREEMENT AND GENERAL RELEASE ("Agreement") is made and entered into by and between Shimmick Construction Company, Inc.

Retention Letter, by and between Shimmick Corporation and Amanda Mobley, dated June 21, 2024

PRIVATE AND CONFIDENTIAL June 19, 2024 Amanda Mobley Dear Amanda: RE: Retention Agreement Our plan to grow and transform Shimmick continues, and we have identified you as a key player in driving our company's growth and success.

Regulation FD Disclosure, 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): June 18, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

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

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 Filed by the Registrant ☒ 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)) ☒ Definitive Proxy State

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

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 Filed by the Registrant ☒ 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)) ☐ Definitive Proxy State

SHIM / Shimmick Corporation / Aecom - 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. )* Shimmick Corporation (Name of Issuer) Common stock, par value $0.01 per share (Title of Class of Securities) 82455M109 (CUSIP Number) David Y. Gan Executive Vice President, Chief Legal Officer AECOM 300 South Grand Avenue Los Angeles, CA 90071 (213) 593-8

Guaranty Agreement, dated May 20, 2024, by AECOM in favor of MidCap Funding IV Trust*

EX-99.5 3 tm2415351d1ex99-5.htm EXHIBIT 99.5 Exhibit 99.5 Execution Version GUARANTY AGREEMENT THIS GUARANTY AGREEMENT (this “Guaranty”) is made as of May 20, 2024, by AECOM, a Delaware corporation (the “Guarantor”) in favor of MidCap Funding IV Trust, as agent (in such capacity, together with its successors and permitted assigns, “Agent”) for the Lenders (as defined in the Credit Agreement refere

Pledge Agreement, dated May 20, 2024, by and among Shimmick Corporation and each of its direct and indirect subsidiaries set forth on the signature pages thereto as a pledgor, and Alter Domus (US) LLC, as administrative agent for the benefit of itself and the lenders time to time party thereto*

EX-99.3 2 tm2415351d1ex99-3.htm EXHIBIT 99.3 Exhibit 99.3 Execution Version PLEDGE AGREEMENT This PLEDGE AGREEMENT (this “Agreement”) is made as of May 20, 2024 by and among SHIMMICK CORPORATION, a Delaware corporation (“Holdings”) and each of its direct and indirect subsidiaries set forth on the signature pages hereto as a pledgor (each a “Pledgor”, and collectively, “Pledgors”), and ALTER DOMUS

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

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 Filed by the Registrant ☒ 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)) ☐ Definitive Proxy State

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): May 23, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

Side Letter, dated May 20, 2024, between Shimmick Corporation and AECOM (incorporated by reference to Exhibit 10.2 to the Issuer’s Current Report on Form 8-K filed with the SEC on May 20, 2024)

AECOM 13355 Noel Road #400 Dallas, Texas 75240 May 20, 2024 Shimmick Corporation 530 Technology Drive, Suite 300 Irvine, California 92618 Re: Side Letter to Credit Agreement All: This letter agreement (this “Agreement”) serves to memorialize the agreement between AECOM, a Delaware corporation (together with its successors and assigns, “AECOM”) and Shimmick Corporation, a Delaware corporation (“Shimmick,” and together with its wholly-owned subsidiaries, the “Credit Parties”, and Shimmick, together with AECOM, the “Parties”) in relation to that certain Credit, Security and Guaranty Agreement, dated as of the date hereof, by and among Shimmick Construction Company, Inc.

Amendment No. 3 to Credit, Security and Guaranty Agreement, dated May 20, 2024, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto

AMENDMENT NO. 3 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 3 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 20th day of May, 2024 (the “Third Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORATION, a Nevada corpor

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Termination of a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, 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): May 20, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 29, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

Credit, Security and Guaranty Agreement, dated May 20, 2024, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation, the other guarantors party thereto, the agent thereunder, and the lenders time to time party thereto (incorporated by reference to Exhibit 10.1 to the Issuer’s Current Report on Form 8-K filed with the SEC on May 20, 2024)

CREDIT, SECURITY AND GUARANTY AGREEMENT dated as of May 20, 2024 by and among SHIMMICK CONSTRUCTION COMPANY, INC.

Shimmick Takes Pivotal Steps to Further Advance Evolution as Leader in Water Infrastructure Strengthens financial position, setting up the Company for future growth and success Board expands to include new Independent Director and new Committee focus

Shimmick Takes Pivotal Steps to Further Advance Evolution as Leader in Water Infrastructure Strengthens financial position, setting up the Company for future growth and success Board expands to include new Independent Director and new Committee focused on the long-term value creation IRVINE, Calif.

Share Issuance Agreement, dated May 20, 2024, between Shimmick Corporation and AECOM (incorporated by reference to Exhibit 10.3 to the Issuer’s Current Report on Form 8-K filed with the SEC on May 20, 2024)

SHARE ISSUANCE AGREEMENT THIS SHARE ISSUANCE AGREEMENT (this “Agreement”) is entered into as of May 20, 2024 between Shimmick Corporation, a Delaware corporation (“Shimmick”) and AECOM, a Delaware corporation (“AECOM”), for the issuance by Shimmick to AECOM of 7,745,000 shares of common stock, par value $0.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC FILE NUMBER: 001-41867 CUSIP NUMBER: 82455M109

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING SEC FILE NUMBER: 001-41867 CUSIP NUMBER: 82455M109 (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☒ Form 10-Q ☐ Form 10-D ☐ Form N-SAR ☐ Form N-CSR For Period Ended: March 29, 2024 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Tran

Shimmick Corporation Announces First Quarter 2024 Results

Exhibit 99.1 Shimmick Corporation Announces First Quarter 2024 Results Irvine, CA, May 13, 2024 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the first quarter ended March 29, 2024. First Quarter 2024 and Recent Highlights • Reported revenue of $120 million, which includes $90 million of Shimmick Projects revenue • Reported a net los

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): May 13, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission File

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

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 Filed by the Registrant ☒ 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)) ☒ Definitive Proxy State

Project Financing Agreement, dated March 26, 2024, by and among Shimmick Corporation, Berkshire Specialty Insurance Company, National Liability & Fire Insurance Company and National Indemnity Company.

FINANCING AGREEMENT This Financing Agreement (“Agreement”) is made and entered into this 26th day of March, 2024, by and among Shimmick Corporation f/k/a SCCI National Holdings, Inc.

List of Subsidiaries of Shimmick Corporation

Exhibit 21.1 LIST OF SUBSIDIARIES OF SHIMMICK CORPORATION Entity Name Jurisdiction of Organization Rust Constructors, Inc. Delaware Shimmick Construction Company, Inc. California The Leasing Corporation Nevada Gilcrease Constructors Oklahoma 21stCentury Rail Corporation Delaware Gilcrease Holding Company LLC Oklahoma Gilcrease Developers LLC Oklahoma Shimmick/Traylor/Granite JV California Shimmick

Description of Securities

Exhibit 4.1 DESCRIPTION OF CAPITAL STOCK The following describes common stock and preferred stock of Shimmick Corporation (“Shimmick,” “we,” “our,” “us,” “its” or the “Company”) and certain terms of our amended and restated certificate of incorporation and amended and restated bylaws. This description is a summary only and is subject to the complete text of our amended and restated certificate of

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 (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 29, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission File Number 001-41867 Shimmick Corpor

Shimmick Corporation Announces Fourth Quarter and Fiscal Year 2023 Results

Exhibit 99.1 Shimmick Corporation Announces Fourth Quarter and Fiscal Year 2023 Results Shimmick realized significant progress with 24% growth in Shimmick Projects, with gross margin of 7% Irvine, CA, March 28, 2024 – Shimmick Corp. (NASDAQ: SHIM), a leading water infrastructure company, today announced financial results for the fiscal year ended December 29, 2023. Fiscal Year 2023 Highlights • Co

Clawback Policy

SHIMMICK CORPORATION CLAWBACK POLICY Approved by the Board of Directors on November 13, 2023 Effective as of October 2, 2023 1.

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): March 28, 2024 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission Fil

SHIM / Shimmick Corporation / Goldsteen Mitchell B. - SC 13G Passive Investment

SC 13G SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Shimmick Corporation (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 82455M109 (CUSIP Number) December 29, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursua

JOINT FILING AGREEMENT Shimmick Corporation

EX-99.1 2 d758986dex991.htm EX-99.1 EXHIBIT 99.1 JOINT FILING AGREEMENT Shimmick Corporation In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of the Statement on Schedule 13G and any and all further amendments thereto, with respect to the securities of the abo

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q

ROC UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 29, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 001-41867 Shimmick Corporation (Exact Name of Registrant as Specified in its Charter) Delaware 84-3749368 ( State or other jurisdiction of incorporation or organization) (I.

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): December 19, 2023 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

Shimmick Corp. Announces Third Quarter 2023 Results

Exhibit 99.1 Shimmick Corp. Announces Third Quarter 2023 Results Third Quarter 2023 Financial Highlights • Revenue of $175 million • Net income attributable to Shimmick of $35 million • Diluted earnings per common share of $1.58 • Adjusted net income of $37 million • Adjusted diluted earnings per common share of $1.67 • Adjusted EBITDA of $42 million • Backlog of $1.2 billion as of September 29, 2

Shimmick Corporation Appoints Joe Del Guercio to Board of Directors

Shimmick Corporation Appoints Joe Del Guercio to Board of Directors Irvine, Calif.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

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 15, 2023 Shimmick Corporation (Exact name of Registrant as Specified in Its Charter) Delaware 001-41867 84-3749368 (State or Other Jurisdiction of Incorporation) (Commission

As filed with the Securities and Exchange Commission on November 16, 2023

As filed with the Securities and Exchange Commission on November 16, 2023 Registration No.

Filing Fee Table.

EX-FILING FEES Exhibit 107 CALCULATION OF FILING FEE TABLE FORM S-8 (Form type) Shimmick Corporation (Exact name of Registrant as specified in its charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common Stock, $0.

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, 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): November 16, 2023 SHIMMICK CORPORATION (Exact name of registrant as specified in its charter) Delaware 001-41867 84-3749368 (State or other jurisdiction of incorporation) (Commission

Amended and Restated Certificate of Incorporation of Shimmick Corporation (incorporated by reference to Exhibit 3.1 of Shimmick Corporation’s Current Report on Form 8-K filed on November 16, 2023).

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF SHIMMICK CORPORATION * * * * * The present name of the corporation is Shimmick Corporation (the “Corporation”). The Corporation was incorporated under the name “SCCI National Holdings, Inc.” by the filing of its original Certificate of Incorporation with the Secretary of State of the State of Delaware on October 18, 2019. This Amende

Amended and Restated Bylaws of Shimmick Corporation (incorporated by reference to Exhibit 3.2 of Shimmick Corporation’s Current Report on Form 8-K filed on November 16, 2023).

Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF SHIMMICK CORPORATION ARTICLE I Offices SECTION 1.01 Registered Office. The registered office and registered agent of Shimmick Corporation (the “Corporation”) in the State of Delaware shall be as set forth in the Certificate of Incorporation (as defined below). The Corporation may also have offices in such other places in the United States or elsewhere (an

3,575,000 Shares Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(4) Registration No. 333-274870 PROSPECTUS 3,575,000 Shares Common Stock This is Shimmick Corporation’s initial public offering, and prior to this offering, there has been no public market for our common stock. We are offering 3,575,000 shares of our common stock and the initial public offering price is $7.00 per share. Our common stock has been appro

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 SHIMMICK CORPORATION (Exact name of registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 SHIMMICK CORPORATION (Exact name of registrant as specified in its charter) Delaware 84-3749368 (State of incorporation or organization) (I.R.S. Employer Identification No.) 530 Technology Drive Su

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November 9, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

SHIMMICK CORPORATION 530 Technology Drive, Suite 300 Irvine, CA 92618 (949) 333-1500

SHIMMICK CORPORATION 530 Technology Drive, Suite 300 Irvine, CA 92618 (949) 333-1500 November 9, 2023 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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November 9, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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November 9, 2023 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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November 7, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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November 7, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

As filed with the Securities and Exchange Commission on November 2, 2023.

Table of Contents As filed with the Securities and Exchange Commission on November 2, 2023.

[Signature Page Follows]

November 2, 2023 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

SHIMMICK CORPORATION 530 Technology Drive, Suite 300 Irvine, CA 92618 (949) 333-1500

SHIMMICK CORPORATION 530 Technology Drive, Suite 300 Irvine, CA 92618 (949) 333-1500 November 2, 2023 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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October 30, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

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October 30, 2023 VIA EDGAR Stacie Gorman Jeffrey Gabor Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

Amendment No. 1 to Credit, Security and Guaranty Agreement, dated June 30, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors, Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto.

Exhibit 10.6 Execution Version 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 this 30th day of June 2023 (the “First Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASI

*  *  *

King & Spalding LLP 1180 Peachtree Street N.E. Atlanta, GA 30309-3521 www.kslaw.com Zachary Davis [email protected] T 404.572.2770 Alan Noskow [email protected] T 202.626.5572 October 27, 2023 Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, NE Washington, DC 20549 Attn: Stacie Gorman Jeffrey Gabor Re: Shimmick Corporation Amendme

Credit, Security and Guaranty Agreement, dated March 27, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto.

Exhibit 10.5 Execution Version **Portions of this exhibit have been redacted in accordance with Item 601(a)(5) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** CREDIT, SECURITY AND GUARANTY AGREEMENT dated as of March 27, 2023 by and among SHIMMICK CONSTRUCTION COMPANY

Loan and Security Agreement, effective September 13, 2023, by and between Hudson Bridge Partners, LLC and/or its assigns and Shimmick Construction Company, Inc.

Exhibit 10.8 **Portions of this exhibit have been redacted in accordance with Item 601(a)(5) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** LOAN AND SECURITY AGREEMENT This Loan and Security Agreement (“Loan Agreement”), by and between Hudson Bridge Partners, LLC and

As filed with the Securities and Exchange Commission on October 27, 2023.

S-1/A Table of Contents As filed with the Securities and Exchange Commission on October 27, 2023.

Amendment No. 2 to Credit, Security and Guaranty Agreement, dated September 22, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation (f/k/a SCCI National Holdings, Inc.), MidCap Funding IV Trust and other parties thereto.

Exhibit 10.7 AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 22nd day of September, 2023 (the “Second Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORAT

Form of Shimmick Corporation 2023 Equity Incentive Plan (incorporated by reference to Exhibit 10.3 of Shimmick Corporation’s Registration Statement on Form S-1 (No. 333-274870) filed on October 24, 2023).

Exhibit 10.3 SHIMMICK CORPORATION 2023 EQUITY INCENTIVE PLAN 1. Purposes of the Plan. The purposes of this Plan are: • to attract and retain the best available personnel for positions of substantial responsibility; • to provide additional incentive to Employees, Directors and Consultants; and • to promote the success of the Company’s business. 2. Definitions. As used herein, the following definiti

Certificate of Amendment to the Certificate of Incorporation of Shimmick Corporation (f/k/a SCCI National Holdings, Inc.), effective as of September 11, 2023.

Exhibit 3.3 STATE OF DELAWARE CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION The corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware does hereby certify: FIRST: That at a meeting of the Board of Directors of SCCI National Holdings, Inc. resolutions were duly adopted setting forth a proposed amendment of the Certificate of Incorpo

Form of Underwriting Agreement.

Exhibit 1.1 SHIMMICK CORPORATION UNDERWRITING AGREEMENT 4,550,000 Shares of Common Stock , 2023 Roth Capital Partners, LLC As the Representative of the Several Underwriters Named on Schedule I hereto c/o Roth Capital Partners, LLC 888 San Clemente Drive, Suite 400 Newport Beach, CA 92660 Ladies and Gentlemen: SHIMMICK CORPORATION, formerly known as SCCI National Holdings, Inc., a Delaware corporat

List of Subsidiaries of Shimmick Corporation.

Exhibit 21.1 LIST OF SUBSIDIARIES OF SHIMMICK CORPORATION Entity Name Jurisdiction of Organization Rust Constructors, Inc. Delaware Shimmick Construction Company, Inc. California The Leasing Corporation Nevada Gilcrease Constructors Oklahoma 21st Century Rail Corporation Delaware Gilcrease Holding Company LLC Oklahoma Gilcrease Developers LLC Oklahoma Shimmick/Traylor/Granite JV California Shimmic

Certificate of Amendment to the Certificate of Incorporation of Shimmick Corporation, effective as of October 23, 2023.

Exhibit 3.4 CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION OF SHIMMICK CORPORATION Shimmick Corporation, a corporation organized and existing under and by virtue of the General Corporation Law of the state of Delaware (the “Corporation”), does hereby certify: FIRST: That the Board of Directors of the Corporation, by unanimous written consent of its members, adopted a resolution proposing

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Shimmick Corporation (Exact Name of Registrant as Specified in Its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price(1) Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common stock, $0.

Bylaws of Shimmick Corporation (SCCI National Holdings, Inc.), effective as of October 18, 2019.

Exhibit 3.6 BY-LAWS OF SCCI NATIONAL HOLDINGS, INC. ARTICLE I OFFICES Section 1.01 Offices. The address of the registered office of SCCI National Holdings, Inc. (hereinafter called the “Corporation”) in the State of Delaware shall be at 1209 Orange Street, Wilmington, New Castle, Delaware 19801. The Corporation may have other offices, both within and without the State of Delaware, as the board of

Form of Amended and Restated Bylaws of Shimmick Corporation, to be in effect upon consummation of this offering.

Exhibit 3.7 FORM OF AMENDED AND RESTATED BYLAWS OF SHIMMICK CORPORATION ARTICLE I Offices SECTION 1.01 Registered Office. The registered office and registered agent of Shimmick Corporation (the “Corporation”) in the State of Delaware shall be as set forth in the Certificate of Incorporation (as defined below). The Corporation may also have offices in such other places in the United States or elsew

As filed with the Securities and Exchange Commission on October 23, 2023.

Table of Contents As filed with the Securities and Exchange Commission on October 23, 2023.

Certificate of Amendment to the Certificate of Incorporation of Shimmick Corporation (f/k/a SCCI National Holdings, Inc.), effective as of April 12, 2021.

Exhibit 3.2 FIRST CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF INCORPORATION OF SCCI NATIONAL HOLDINGS, INC. SCCI National Holdings, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the state of Delaware (the “Corporation’’), does hereby certify: FIRST: That the Board of Directors of the Corporation, by unanimous written consent of its members, ado

Form of Amended and Restated Certificate of Incorporation of Shimmick Corporation, to be in effect upon consummation of this offering.

Exhibit 3.5 FORM OF AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF SHIMMICK CORPORATION * * * * * The present name of the corporation is Shimmick Corporation (the “Corporation”). The Corporation was incorporated under the name “SCCI National Holdings, Inc.” by the filing of its original Certificate of Incorporation with the Secretary of State of the State of Delaware on October 18, 2019. Thi

Certificate of Incorporation of Shimmick Corporation (f/k/a SCCI National Holdings, Inc.), currently in effect.

Exhibit 3.1 STATE of DELAWARE CERTIFICATE of INCORPORATION A STOCK CORPORATION • First: The name of this Corporation is SCCI National Holdings, Inc. • Second: Its registered office in the State of Delaware is to be located at 1209 Orange Street Street, in the City of Wilmington County of New Castle Zip Code 19801. The registered agent in charge thereof is The Corporation Trust Company. Third: The

Form of Indemnification Agreement for Executive Officers and Directors (incorporated by reference to Exhibit 10.1 of Shimmick Corporation’s Registration Statement on Form S-1 (No. 333-274870) filed on October 24, 2023).

Exhibit 10.1 FORM OF INDEMNIFICATION AGREEMENT This INDEMNIFICATION AGREEMENT is made and executed effective as of [DATE] by and between Shimmick Corporation, a Delaware corporation (the “Company”), and [NAME], an individual resident of the State of [STATE] (the “Indemnitee”). WHEREAS, Indemnitee is a member of the Board of Directors or an officer of the Company and in such capacity is performing

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King & Spalding LLP 1180 Peachtree Street N.E. Atlanta, GA 30309-3521 www.kslaw.com Zachary Davis [email protected] T 404.572.2770 Alan Noskow [email protected] T 202.626.5572 October 23, 2023 Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, NE Washington, DC 20549 Attn: Stacie Gorman Jeffrey Gabor Re: Shimmick Corporation Registr

Consent of Carolyn L. Trabuco to be listed as a director nominee.

Exhibit 99.1 Consent to be Named as a Director Nominee In connection with the filing by Shimmick Corporation of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), I hereby consent, pursuant to Rule 438 of the Securities Act, to being named as a nominee to the board of directors of Shimmick Corporat

Consent of Geoffrey E. Heekin to be listed as a director nominee.

Exhibit 99.2 Consent to be Named as a Director Nominee In connection with the filing by Shimmick Corporation of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), I hereby consent, pursuant to Rule 438 of the Securities Act, to being named as a nominee to the board of directors of Shimmick Corporat

Amendment No. 2 to Credit, Security and Guaranty Agreement, dated September 22, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, Shimmick Corporation (f/k/a SCCI National Holdings, Inc.), MidCap Funding IV Trust and other parties thereto

Exhibit 10.8 AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT This AMENDMENT NO. 2 TO CREDIT, SECURITY AND GUARANTY AGREEMENT (this “Agreement”) is made as of this 22nd day of September, 2023 (the “Second Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASING CORPORAT

Powers of Attorney (included on signature page).

Table of Contents As filed with the Securities and Exchange Commission on October 4, 2023.

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-1 (Form Type) Shimmick Corporation (Exact Name of Registrant as Specified in Its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price(1)(2) Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective Date Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward Newly Registered Securities Fees to be Paid Equity Common stock, $0.

Credit, Security and Guaranty Agreement, dated March 27, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto

Exhibit 10.6 Execution Version **Portions of this exhibit have been redacted in accordance with Item 601(b)(10) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** CREDIT, SECURITY AND GUARANTY AGREEMENT dated as of March 27, 2023 by and among SHIMMICK CONSTRUCTION COMPAN

Amendment No. 1 to Credit, Security and Guaranty Agreement, dated June 30, 2023, by and among Shimmick Construction Company, Inc., Rust Constructors, Inc., The Leasing Corporation, SCCI National Holdings, Inc., MidCap Funding IV Trust and other parties thereto.

Exhibit 10.7 Execution Version 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 this 30th day of June 2023 (the “First Amendment Effective Date”), by and among SHIMMICK CONSTRUCTION COMPANY, INC., a California corporation (“Shimmick”), RUST CONSTRUCTORS INC., a Delaware corporation, THE LEASI

Credit Agreement, dated February 26, 2021, by and among Shimmick Construction Company, Inc., BMO Harris Bank N.A. and the other parties thereto (incorporated by reference to Exhibit 10.4 of Shimmick Corporation’s Registration Statement on Form S-1 (No. 333-274870) filed on October 5, 2023).

Exhibit 10.4 **Portions of this exhibit have been redacted in accordance with Item 601(b)(10) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** CREDIT AGREEMENT DATED AS OF FEBRUARY 26, 2021 AMONG SHIMMICK CONSTRUCTION COMPANY, INC., THE GUARANTORS FROM TIME TO TIME PAR

Loan and Security Agreement, effective September 13, 2023, by and between Hudson Bridge Partners, LLC and/or its assigns and Shimmick Construction Company, Inc.

Exhibit 10.9 **Portions of this exhibit have been redacted in accordance with Item 601(b)(10) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** LOAN AND SECURITY AGREEMENT This Loan and Security Agreement (“Loan Agreement”), by and between Hudson Bridge Partners, LLC an

SCCI National Holdings, Inc. 2021 Stock Plan (incorporated by reference to Exhibit 10.2 of Shimmick Corporation’s Registration Statement on Form S-1 (No. 333-274870) filed on October 5, 2023).

Exhibit 10.2 SCCI NATIONAL HOLDINGS, INC. 2021 STOCK PLAN 1. GENERAL. (a) Eligible Stock Award Recipients. Employees, Directors and Consultants are eligible to receive Stock Awards. (b) Available Stock Awards. The Plan provides for the grant of the following types of Stock Awards: (i) Incentive Stock Options, (ii) Nonstatutory Stock Options, (iii) Stock Appreciation Rights, (iv) Restricted Stock A

Purchase and Sale Agreement, dated, December 9, 2020, by and among AECOM, URS Holdings, Inc. and SCC Group, LLC.

Exhibit 2.1 EXECUTION VERSION **Portions of this exhibit have been redacted in accordance with Item 601(b)(10) of Regulation S-K. The information is not material and would cause competitive harm to the registrant if publicly disclosed. [***] indicates that information has been redacted. ** PURCHASE AND SALE AGREEMENT BY AND AMONG AECOM, URS HOLDINGS, INC. AND, SCC GROUP, LLC Dated as of December 9

Consent of J. Brendan Herron to be listed as a director nominee.

Exhibit 99.3 Consent to be Named as a Director Nominee In connection with the filing by Shimmick Corporation of the Registration Statement on Form S-1 with the Securities and Exchange Commission under the Securities Act of 1933, as amended (the “Securities Act”), I hereby consent, pursuant to Rule 438 of the Securities Act, to being named as a nominee to the board of directors of Shimmick Corporat

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King & Spalding LLP 1180 Peachtree Street N.E. Atlanta, GA 30309-3521 www.kslaw.com Zachary Davis [email protected] T 404.572.2770 Alan Noskow [email protected] T 202.626.5572 October 4, 2023 Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, NE Washington, DC 20549 Attn: Stacie Gorman Jeffrey Gabor Re: Shimmick Corporation Amendmen

As submitted confidentially to the Securities and Exchange Commission on September 14, 2023 as Amendment No. 1 to the draft registration statement. This draft registration statement has not been filed publicly with the Securities and Exchange Commiss

Table of Contents As submitted confidentially to the Securities and Exchange Commission on September 14, 2023 as Amendment No.

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King & Spalding LLP 1180 Peachtree Street N.E. Atlanta, GA 30309-3521 www.kslaw.com Zachary Davis [email protected] T 404.572.2770 Alan Noskow [email protected] T 202.626.5572 September 14, 2023 Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction 100 F Street, NE Washington, DC 20549 Attn: Stacie Gorman Jeffrey Gabor Re: Shimmick Corporation (f/k/

As submitted confidentially to the Securities and Exchange Commission on August 9, 2023. This draft registration statement has not been filed publicly with the Securities and Exchange Commission and all information contained herein remains strictly c

Table of Contents As submitted confidentially to the Securities and Exchange Commission on August 9, 2023.