ASP Isotopes Inc. New Standards Disclosure

Recently Issued Accounting Pronouncements

The Company has reviewed recently issued accounting pronouncements and plans to adopt those that are applicable to it. The Company does not expect the adoption of any recently issued pronouncements to have a material impact on its results of operations or financial position.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses (“ASU 2024-03”) and is effective for annual reporting periods beginning after December 15, 2026 and interim reporting periods beginning after December 15, 2027. ASU 2024-03 requires disclosures about specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. The Company is still assessing the impact of adopting this standard.

In July 2025, the FASB issued ASU 2025-05, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets ("ASU 2025-05") and is effective for fiscal years beginning after December 15, 2025, including interim periods within those fiscal years. Early adoption is permitted. ASU 2025-05 provides a practical expedient that allows entities to assume that conditions existing at the balance sheet date will remain unchanged over the remaining life of current accounts receivable and contract assets arising from revenue transactions under ASC 606. Additionally, entities other than public business entities that elect the practical expedient may also make an accounting policy election to consider subsequent collection activity occurring after the balance sheet date when estimating expected credit losses. The Company does not expect the adoption of this standard to have a material effect on the consolidated financial results.

In August 2025, the FASB issued ASU 2025-08, Financial Instruments—Credit Losses (Topic 326): Purchased Loans (“ASU 2024-08”) and is effective for fiscal years beginning after December 15, 2026, including interim periods within those fiscal years with early adoption permitted. ASU 2025-08 clarifies the accounting for purchased loans under the current expected credit loss (CECL) model, including guidance on recognizing and measuring expected credit losses and presentation of related amounts. The Company is still assessing the impact of adopting this standard.

In September 2025, the FASB issued ASU 2025-06, Targeted Improvements to the Accounting for Internal-Use Software ("ASU 2025-06") and is effective January 1, 2028 with early adoption permitted. ASU 2025-06 modernizes the accounting for internal use software costs and requires entities to start capitalizing eligible costs when (1) management has authorized and committed to funding the software project, and (2) it is probable that the project will be completed and the software will be used to perform the function intended. The guidance can be applied on a prospective basis, a modified basis for in-process projects, or a retrospective basis. The Company is still assessing the impact of adopting this standard.

Recently Adopted Accounting Pronouncements

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires an annual tabular effective tax rate reconciliation disclosure including information for specified categories and jurisdiction levels, as well as, disclosure of income taxes paid, net of refunds received, disaggregated by federal, state/local, and significant foreign jurisdiction. This ASU is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. The Company adopted this standard prospectively on January 1, 2025, which expanded the Company's disclosures beginning with its annual consolidated financial statements for the year ended December 31, 2025, but did not have an impact on the consolidated financial results.