| 2026-08-20 | 8-K | 10.2 | PUT OPTION AGREEMENT |
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| 2026-08-20 | 8-K | 10.1 | SECOND AMENDMENT AND RESTATEMENT AGREEMENT |
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| 2026-08-14 | 10-Q | 10.5 | Non-Employee Director Compensation Policy effective July 1, 2026. |
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| 2026-07-16 | 8-K | 10.1 | FORM OF SECURITIES EXCHANGE AGREEMENT |
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| 2026-06-25 | 8-K | 10.3 | VOTING AGREEMENT |
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| 2026-06-25 | 8-K | 10.2 | PRE-FUNDED WARRANT |
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| 2026-06-25 | 8-K | 10.1 | SUBSCRIPTION AGREEMENT |
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| 2026-05-20 | 10-Q | 10.29 | Voting Agreement, by and among Opeongo, Inc., ASP Isotopes Inc., and the Key Holders named therein, dated January 26, 2026. |
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| 2026-05-20 | 10-Q | 10.28 | Right of First Refusal and Co-Sale Agreement, by and among Opeongo, Inc., ASP Isotopes Inc.,and the Key Holders named therein, dated January 26, 2026. |
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| 2026-05-20 | 10-Q | 10.27 | Investors’ Rights Agreement, by and among Opeongo, Inc., ASP Isotopes Inc., and the Key Holders named therein, dated January 26, 2026. |
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| 2026-05-20 | 10-Q | 10.26 | Series Seed-1 Preferred Stock Purchase Agreement, between ASP Isotopes Inc. and Opeongo, Inc., dated January 26, 2026. |
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| 2026-05-20 | 10-Q | 10.25 | Liquified Natural Gas Supply Agreement between Tetra4 Proprietary Limited and Consol Glass Proprietary Limited, effective as of June 24, 2022. |
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| 2026-05-20 | 10-Q | 10.24 | Exploration Right granted by the Republic of South Africa to Highland Exploration and Production Proprietary Limited on May 26, 2009. |
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| 2026-05-20 | 10-Q | 10.23 | Exploration Right granted by the Republic of South Africa to Highland Exploration and Production Proprietary Limited on May 8, 2007. |
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| 2026-05-20 | 10-Q | 10.22 | Amendment/Variation of a Production Right granted by the Republic of South Africa to Tetra4 Proprietary Limited on March 15, 2024. |
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| 2026-05-20 | 10-Q | 10.21 | Amendment/Variation of a Production Right granted by the Republic of South Africa to Tetra4 Proprietary Limited on September 17, 2021. |
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| 2026-05-20 | 10-Q | 10.20 | Production Right granted by the Republic of South Africa to Molopo South Africa Exploration and Production Proprietary Limited on September 20, 2012. |
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| 2026-05-20 | 10-Q | 10.18 | Consent and Waiver, dated November 25, 2025, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.17 | Waiver, dated April 9, 2025, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.16 | Consent and Waiver, dated December 9, 2024, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 in Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.15 | Consent and Waiver, dated August 30, 2024, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.14 | Consent and Waiver, dated March 12, 2024, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.13 | Consent and Waiver, dated January 12, 2024, in connection with the Finance Agreement between U.S. International Development Finance Corporation and Tetra4 Proprietary Limited. |
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| 2026-05-20 | 10-Q | 10.3 | Third Addendum to the Term Loan Facility Agreement, between ASP Isotopes Inc., Renergen Limited and ASP Isotopes South Africa Proprietary Limited, dated April 16, 2026. |
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| 2026-05-20 | 10-Q | 10.2 | Second Addendum to the Term Loan Facility Agreement, between ASP Isotopes Inc., Renergen Limited and ASP Isotopes South Africa Proprietary Limited, dated February 26, 2026. |
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| 2026-05-20 | 10-Q | 10.1 | First Addendum to the Term Loan Facility Agreement, between ASP Isotopes Inc., Renergen Limited and ASP Isotopes South Africa Proprietary Limited, dated January 15, 2026. |
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| 2026-04-10 | 10-K | 10.54 | Second Amendment to Executive Employment Agreement between the registrant and Paul Mann dated April 5, 2024. |
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| 2026-04-10 | 10-K | 10.49 | Amended And Restated Secured Term Loan Facility Agreement between Renergen Limited and the Standard Bank of South Africa Limited, dated December 12, 2025. |
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| 2026-04-10 | 10-K | 10.48 | Amendment No. 5 to Finance Agreement, between United States. International Development Finance Corporation and Tetra4 Proprietary Limited, dated December 16, 2021. |
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| 2026-04-10 | 10-K | 10.47 | Amendment No. 4 to Finance Agreement, between United States. International Development Finance Corporation and Tetra4 Proprietary Limited, dated August 24, 2021. |
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| 2026-04-10 | 10-K | 10.46 | Amendment No. 3 to Finance Agreement, between United States. International Development Finance Corporation and Tetra4 Proprietary Limited, dated February 26, 2021. |
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| 2026-04-10 | 10-K | 10.45 | Amendment No. 2 to Finance Agreement, between United States. International Development Finance Corporation and Tetra4 Proprietary Limited, dated April 28, 2020. |
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| 2026-04-10 | 10-K | 10.44 | Amendment No. 1 to Finance Agreement, between United States. International Development Finance Corporation and Tetra4 Proprietary Limited, dated March 30, 2020. |
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| 2026-04-10 | 10-K | 10.43 | Finance Agreement, between U.S. International Development Finance Corporation, as successor in interest to Overseas Private Investment Corporation, and Tetra4 Proprietary Limited, dated August 20, 2019. |
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| 2026-04-10 | 10-K | 10.42 | Amendment, dated September 1, 2025, to Loan Agreement between Industrial Development Corporation of South Africa Limited and Tetra4 Proprietary Limited. |
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| 2026-04-10 | 10-K | 10.41 | Amendment, dated October 10, 2023, to Loan Agreement between Industrial Development Corporation of South Africa Limited and Tetra4 Proprietary Limited. |
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| 2026-04-10 | 10-K | 10.40 | Loan Agreement, between Industrial Development Corporation of South Africa Limited and Tetra4 Proprietary Limited, dated December 20, 2021. |
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| 2025-11-28 | 8-K | 10.1 | LETTER TO THE TERM LOAN FACILITY AGREEMENT |
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| 2025-11-19 | 10-Q | 10.5 | Letter, dated as of November 6, 2025, to the Term Loan Facility Agreement by and among ASP Isotopes Inc., Renergen Limited and ASP Isotopes South Africa Proprietary Limited |
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| 2025-11-19 | 10-Q | 10.4 | Right of First Refusal and Co-Sale Agreement, dated as of July 28, 2025, by and among IsoBio, Inc. ASP Isotopes Inc. and the Key Holders named therein |
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| 2025-11-19 | 10-Q | 10.3 | Voting Agreement, dated as of July 28, 2025, by and among IsoBio, Inc., ASP Isotopes Inc. and the Key Holders named therein |
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| 2025-11-19 | 10-Q | 10.2 | Investors’ Rights Agreement, dated as of July 28, 2025, by and among IsoBio, Inc. and the Investors named therein |
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| 2025-11-19 | 10-Q | 10.1 | Series Seed-1 Preferred Stock Purchase Agreement, dated as of July 28, 2025, by and between IsoBio, Inc. and ASP Isotopes Inc. |
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| 2025-11-14 | 8-K | 10.2 | REGISTRATION RIGHTS AGREEMENT |
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| 2025-11-14 | 8-K | 10.1 | CONVERTIBLE NOTE PURCHASE AGREEMENT |
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| 2025-08-14 | 10-Q | 10.4 | HALEU Long-Term Supply Agreement by and between TerraPower, LLC and ASP Isotopes Inc., dated as of May 16, 2025 |
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| 2025-08-14 | 10-Q | 10.3 | Natrium Project Procurement Terms and Conditions – Enrichment Services by and between TerraPower, LLC and ASP Isotopes Inc., dated as of May 16, 2025 |
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| 2025-08-14 | 10-Q | 10.1 | ASP Isotopes Inc. 2025 Inducement Equity Incentive Plan and forms of award agreement thereunder. |
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| 2025-05-22 | 8-K | 10.1 | LOAN AGREEMENT |
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| 2025-05-20 | 8-K | 10.1 | TERM LOAN FACILITY AGREEMENT |
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| 2025-03-31 | 10-K | 10.31 | Non-Employee Director Compensation Policy adopted effective October 30, 2024. |
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| 2024-11-19 | 10-Q | 10.1 | Executive Employment Agreement by and between the Company and Heather Kiessling, dated June 10, 2024. |
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| 2024-09-26 | 8-K | 10.1 | FIRST AMENDMENT TO 2024 EQUITY INCENTIVE PLAN |
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| 2024-06-13 | 8-K | 10.1 | INDUCEMENT EQUITY INCENTIVE PLAN |
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| 2024-06-06 | 8-K | 10.2 | REGISTRATION RIGHTS AGREEMENT |
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| 2024-06-06 | 8-K | 10.1 | CONVERTIBLE NOTE |
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| 2024-04-09 | 8-K | 10.1 | FORM OF WARRANT INDUCEMENT AGREEMENT |
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| 2024-02-29 | 8-K | 10.3 | QLE EQUITY INCENTIVE PLAN |
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| 2024-02-29 | 8-K | 10.2 | REGISTRATION RIGHTS AGREEMENT |
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| 2024-02-29 | 8-K | 10.1 | CONVERTIBLE NOTE PURCHASE AGREEMENT |
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| 2023-11-03 | 8-K | 10.1 | SHARE PURCHASE AGREEMENT |
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| 2023-10-12 | 8-K | 10.2 | REGISTRATION RIGHTS AGREEMENT |
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| 2023-10-12 | 8-K | 10.1 | PURCHASE AGREEMENT |
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| 2023-03-31 | 10-K | 10.21 | DEED OF SECURITY |
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| 2023-03-31 | 10-K | 10.20 | ACKNOWLEDGEMENT OF DEBT |
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| 2023-03-31 | 10-K | 10.19 | AMENDED EXECUTIVE EMPLOYMENT AGREEMENT |
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| 2023-03-31 | 10-K | 10.18 | AMENDED ADVISORY AGREEMENT |
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| 2023-03-17 | 8-K | 10.2 | REGISTRATION RIGHTS AGREEMENT |
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| 2023-03-17 | 8-K | 10.1 | SECURITIES PURCHASE AGREEMENT |
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