<SEC-DOCUMENT>0001477932-25-001076.txt : 20250218
<SEC-HEADER>0001477932-25-001076.hdr.sgml : 20250218
<ACCEPTANCE-DATETIME>20250218062210
ACCESSION NUMBER:		0001477932-25-001076
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250218
DATE AS OF CHANGE:		20250218

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ASP Isotopes Inc.
		CENTRAL INDEX KEY:			0001921865
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				872618235
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-94207
		FILM NUMBER:		25632597

	BUSINESS ADDRESS:	
		STREET 1:		601 PENNSYLVANIA AVENUE NW
		STREET 2:		SOUTH BUILDING, SUITE 900
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20004
		BUSINESS PHONE:		202-756-2245

	MAIL ADDRESS:	
		STREET 1:		601 PENNSYLVANIA AVENUE NW
		STREET 2:		SOUTH BUILDING, SUITE 900
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20004

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mann Paul Elliot
		CENTRAL INDEX KEY:			0001744816
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	MAIL ADDRESS:	
		STREET 1:		C/O ASP ISOTOPES INC.
		STREET 2:		433 PLAZA REAL, SUITE 275
		CITY:			BOCA RATON
		STATE:			FL
		ZIP:			33432
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001477932-25-001068</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001744816</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>1</amendmentNo>
      <securitiesClassTitle>Common Stock, $0.01 par value</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2023</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001921865</issuerCik>
        <issuerName>ASP Isotopes Inc.</issuerName>
        <issuerCusip>00218A105</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>601 PENNSYLVANIA AVENUE NW</com:street1>
          <com:street2>SOUTH BUILDING, SUITE 900</com:street2>
          <com:city>WASHINGTON</com:city>
          <com:stateOrCountry>DC</com:stateOrCountry>
          <com:zipCode>20004</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(d)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Mann Paul Elliot</reportingPersonName>
      <citizenshipOrOrganization>X0</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>6577199.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>6577199.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>6577199.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <classPercent>11.9</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
      <comments>Items 5, 7 and 9 - 5,805,643 shares of Common Stock held directly by Paul Mann and (2) 771,556 shares of Common Stock issuable upon the exercise of warrants exercisable within 60 days of December 31, 2023.
Item 11 - This percentage calculation is based on 48,923,276 outstanding shares as of December 31, 2023.</comments>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>ASP Isotopes Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>601 PENNSYLVANIA AVENUE NW, SOUTH BUILDING, SUITE 900, WASHINGTON, DISTRICT OF COLUMBIA, 20004.</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Paul E. Mann</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>601 Pennsylvania Avenue NW, South Building, Suite 900, Washington DC 20004</principalBusinessOfficeOrResidenceAddress>
        <citizenship>United Kingdom</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>6,577,199 shares</amountBeneficiallyOwned>
        <classPercent>11.9</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>6,577,199 shares </solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>6,577,199 shares </solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>Y</notApplicableFlag>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Mann Paul Elliot</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Paul E. Mann</signature>
        <title>Paul E. Mann</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
