REEcycle Holdings, Inc. Sample Contracts

INDEPENDENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals • New York

This Independent Contractor Agreement (the “Agreement”) is hereby entered into effective as of March 1, 2025, by and between Sumsare Resources, a Texas corporation (“You” or “you”) and Rare Resource Recycling, Inc., a Texas corporation and wholly owned subsidiary of REEcycle Holdings, Inc. (the “Company”, and collectively with You, the “Parties”). This Agreement sets forth the terms and conditions whereby you agree to provide certain services as described in Schedule A attached hereto.

Second Amendment to the License Agreement with Rare Resource Recycling, Inc
License Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This is the Second Amendment (“Second Amendment”) to the License Agreement (“License Agreement”) between the University of Houston (“UH”), an agency of the State of Texas pursuant to Chapter 111, Texas Education Code, and having offices at the Office of Technology Transfer and Innovation, E. Cullen Bldg., Room 316, 4800 Calhoun St., Houston, TX 77204, and Rare Resource Recycling, Inc (“Licensee”), having its principal office at 8310 Castleford Ste. 320, Houston, TX 77040, that was originally executed on December 9, 202, as amended July 29, 2025 (the “Effective Date”). The signatories to this Second Amendment shall be collectively referred to as the “Parties” and individually as a “Party”, as applicable.

REEcycle, Inc. NOTICE OF RESTRICTED STOCK UNIT AWARD
Restricted Stock Unit Award Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals • Delaware

REEcycle, Inc. (“Company”) has awarded to you (“Participant”) restricted stock units (“RSUs”) covering the number of Shares set forth below (the “RSU Award”) under the REEcycle, Inc. 2026 Long-Term Incentive Plan (the “Plan”). Your “Award Agreement” applicable to the RSUs consists of (a) this Notice of Restricted Stock Unit Award (this “Notice”), and (b) the attached Standard Terms and Conditions for Restricted Stock Units (RSUs) (the “RSU Terms and Conditions”). Capitalized terms used but not defined in this Award Agreement will have the same meanings specified in the Plan.

AMENDMENT #1 TO INDEPEDNENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #1 (“Amendment”) is dated effective October 2, 2025 (“Effective Date”) and amends that certain Independent Contractor Agreement dated effective May 5, 2025 (the “Agreement”) between Rare Resource Recycling, Inc., a Texas corporation and wholly owned subsidiary of REEcycle Holdings, Inc. (the “Company”) and Canyon View LLC, an Arizona limited liability company (“You” or “you”). Capitalized terms used but not defined herein have the meaning provided in the Agreement.

Contract
Exclusive License Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

HOUSTON DOR.OIPM.03 - License Agreement unlocked Form updated J une 11, 2019 EXCLUSIVE L I C E NSE A GREEMEN T This License Agreement ("Agreement"), is made and entered i nto on 1 2 / 9 / 20 2 1 , (the "Effective Date") between the University of Houston ("UH"), anagency of the State of Texas pursuant to Chapter 111 , Texas Education Code, and having offices at the Office of Technology Transfer and Innovation, E . Cullen Bldg . , Roo m 316 , 4800 Calhoun St . , Houston, TX 77204 , and Rar e R es ource Re c ycling Inc . dba REEcyc e l In c . ("LICENSEE"), having its principal office at 8310 C astl e fo r d St e . S te . 320 , H ous t o n , T X, 77040 . The signatories to this Agreement shall be collectively referred to as the "Parties" and individually as a "Party", as applicable . RECITALS: WHEREAS, UH is the owner by assignment from Allan Jacobson and Prade e pSamara s ek e re of their entire right, title, and interest in the PATENT RIGHTS (as he r ein defined) ; and WHEREAS, UH is com

AMENDMENT #2 TO INDEPENDENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #2 (“Amendment”) is dated effective April 1, 2026 (“Effective Date”) and amends that certain Independent Contractor Agreement dated effective March 1, 2025, as amended October 2, 2025 (the “Agreement”) between Rare Resource Recycling, Inc., a Texas corporation and wholly owned subsidiary of REEcycle Holdings, Inc. (the “Company”) and Sumsare Resources LLC, a Texas limited liability company (“You” or “you”). Capitalized terms used but not defined herein have the meaning provided in the Agreement.

AMENDMENT #1 TO INDEPEDNENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #1 (“Amendment”) is dated effective October 2, 2025 (“Effective Date”) and amends that certain Independent Contractor Agreement dated effective March 1, 2025 (the “Agreement”) between Rare Resource Recycling, Inc., a Texas corporation and wholly owned subsidiary of REEcycle Holdings, Inc. (the “Company”) and Sumsare Resources LLC, a Texas limited liability company (“You” or “you”). Capitalized terms used but not defined herein have the meaning provided in the Agreement.

SUBSCRIPTION AGREEMENT
Subscription Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This SUBSCRIPTION AGREEMENT (this “Subscription Agreement”) is entered into on [●], 2026, by and among Hall Chadwick Acquisition Corp., a Cayman Islands exempted company (which entity will transfer by way of continuation to and domesticate as a Delaware corporation as part of the Domestication (as defined below) prior to the closing of the Merger (as defined below), the “Issuer”) and the subscriber named on the signature page hereto (“Subscriber”).

Amendment # 1 To Exclusive License Agreement
Exclusive License Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #1 (“Amendment”) is dated effective as of the last date on the signature page hereto and amends certain provisions of that certain Exclusive License Agreement dated effective December 9, 2021 (“Agreement”), by and between The University of Houston (“UH”) an agency of the State of Texas pursuant to Chapter 111, of the Texas Education Code, and REEgenerate Pty Ltd. as assignee of Rare Resource Recycling, Inc. (“Company”). Capitalized terms used but not defined herein shall have the meanings set forth in the Agreement. Except as specifically amended by this Amendment, the Agreement remains in full force and effect.

AMENDMENT #1 TO INDEPENDENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #1 (the “Amendment”) is dated April 29, 2026 and is effective as of March 10, 2026 and amends that certain Independent Contractor Agreement (the “Agreement”) dated as of March 10, 2025, by and between Eric S. Carnell (“You” or “you”) and REEcycle Holdings Inc., a Delaware corporation (the “Company”, and collectively with You, the “Parties”). Except as expressly amended below, all terms of the Agreement remain in full force and effect.

AMENDMENT #2 TO INDEPENDENT CONTRACTOR AGREEMENT
Independent Contractor Agreement • October 1st, 2026 • REEcycle Holdings, Inc. • Secondary smelting & refining of nonferrous metals

This Amendment #2 (“Amendment”) is dated May 14, 2026 (“Effective Date”) and amends that certain Independent Contractor Agreement dated effective May 5, 2025 and amended October 2, 2025 (the “Agreement”) between Rare Resource Recycling, Inc., a Texas corporation and wholly owned subsidiary of REEcycle Holdings, Inc. (the “Company”) and Canyon View LLC, an Arizona limited liability company (“You” or “you”). Capitalized terms used but not defined herein have the meaning provided in the Agreement.