-Company and its North American commercial partner, RC14, commenced the processing of feedstock for enriched Carbon-14 during December 2023. -Continues to expect to generate revenues and cash flow from highly enriched Carbon-14 during 1H 2024. -Commenced the construction of the Company's third isotope enrichment facility in South Africa, for the production of Ytterbium-176. Expects the facility to have production capacity of kilogram quantities of 99.55% 176Yb, and to commence operations in 2025. WASHINGT ...

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 30, 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: 001-41555 ASP Isotopes Inc. (Exact Name of Regist ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 ____________________ Delaware 87-2618235 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) 1101 Pennsylvania Avenue NW, Suite 300 Washington, DC 20004 (Address of principal executive offices) (Zip Code) Title of each class Trading Symbol(s) Name of each exchange on which registered Common Stock, par value $0.01 per share ASPI Nasdaq Stock Market LLC (Nasdaq Capital Market) Large accelerate ...

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 31, 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: 001-41555 ____________________ | --- | --- | |------- ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Name of exchange Title of each class Trading Symbol on which registered: Common stock, par value $0.01 per share ASPI The Nasdaq Capital Market LLC Large accelerated filer ☐ Accelerated filer ☐ Non-accelerated Filer ☒ Smaller reporting company ☒ Emerging growth company ☒ FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO ...