<SEC-DOCUMENT>0001213900-25-016099.txt : 20250221
<SEC-HEADER>0001213900-25-016099.hdr.sgml : 20250221
<ACCEPTANCE-DATETIME>20250221161004
ACCESSION NUMBER:		0001213900-25-016099
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20250221
DATE AS OF CHANGE:		20250221

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Zhengye Biotechnology Holding Ltd
		CENTRAL INDEX KEY:			0001975641
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			F4

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-94896
		FILM NUMBER:		25651943

	BUSINESS ADDRESS:	
		STREET 1:		NO.1 LIANMENG STREET, JILIN ECONOMIC &
		STREET 2:		TECHNICAL DEVELOPMENT ZONE
		CITY:			JILIN
		STATE:			F4
		ZIP:			132101
		BUSINESS PHONE:		86-13844801919

	MAIL ADDRESS:	
		STREET 1:		NO.1 LIANMENG STREET, JILIN ECONOMIC &
		STREET 2:		TECHNICAL DEVELOPMENT ZONE
		CITY:			JILIN
		STATE:			F4
		ZIP:			132101

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SECURINGIUM HOLDING Ltd
		CENTRAL INDEX KEY:			0002057331
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G

	BUSINESS ADDRESS:	
		STREET 1:		NO.1 LIANMENG ROAD
		CITY:			JILIN
		STATE:			F4
		ZIP:			132101
		BUSINESS PHONE:		86-0432-63047008

	MAIL ADDRESS:	
		STREET 1:		NO.1 LIANMENG ROAD
		CITY:			JILIN
		STATE:			F4
		ZIP:			132101
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
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  <headerData>
    <submissionType>SCHEDULE 13G</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: SECURINGIUM HOLDING Ltd -->
          <cik>0002057331</cik>
          <ccc>XXXXXXXX</ccc>
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      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


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  <formData>
    <coverPageHeader>
      <securitiesClassTitle>Ordinary shares, par value $0.000025 per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001975641</issuerCik>
        <issuerName>Zhengye Biotechnology Holding Ltd</issuerName>
        <issuerCusip>G989MS101</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>No.1 Lianmeng Road</com:street1>
          <com:street2>Jilin Economic &amp; Technical Development Z</com:street2>
          <com:city>Jilin City</com:city>
          <com:stateOrCountry>F4</com:stateOrCountry>
          <com:zipCode>132101</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(d)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Securingium Holding Limited</reportingPersonName>
      <citizenshipOrOrganization>D8</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>TSet Holding Limited</reportingPersonName>
      <citizenshipOrOrganization>D8</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Trident Trust Company (HK) Limited</reportingPersonName>
      <citizenshipOrOrganization>K3</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Jiahe Developments Limited</reportingPersonName>
      <citizenshipOrOrganization>D8</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Vanguards Skyline Holdings Limited</reportingPersonName>
      <citizenshipOrOrganization>D8</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Changchun Feier Investment Center (Limited Partnership)</reportingPersonName>
      <citizenshipOrOrganization>F4</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>VVAX Holdings Limited</reportingPersonName>
      <citizenshipOrOrganization>D8</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Jilin Zhengye Group Co., Ltd.</reportingPersonName>
      <citizenshipOrOrganization>F4</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>FI</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>

      <reportingPersonName>Zhenfa Han</reportingPersonName>
      <citizenshipOrOrganization>F4</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>42963748.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>42963748.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>42963748.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>90.66</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
      <comments>* Represents (i) 40,000,000 ordinary shares held by Securingium Holding Limited, which is (a) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector, and (b) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han; (ii) 2,278,752 ordinary shares held by Vanguards Skyline Holdings Limited, which is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han; (iii) and 684,996 ordinary shares held by VVAX Holdings Limited, which is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han, as of December 31, 2024.

** Percentage of class is calculated based on 47,391,376 ordinary shares outstanding as of December 31, 2024, which information was provided by the Issuer to the Reporting Persons on December 31, 2024.</comments>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Zhengye Biotechnology Holding Ltd</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>No.1 Lianmeng Road, Jilin Economic &amp; Technical Development Zone, Jilin City, Jilin Province, China 132101</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Securingium Holding Limited
TSset Holding Limited
Trident Trust Company (HK) Limited
Jiahe Developments Limited
Vanguards Skyline Holdings Limited
Changchun Feier Investment Center
VVAX Holdings Limited
Jilin Zhengye Group Co., Ltd.
Zhenfa Han

The shares reported herein are directly held by Securingium Holding Limited, Vanguards Skyline Holdings Limited, and VVAX Holdings Limited.

Securingium Holding Limited is (i) 99.99% owned by TSset Holding Limited, which itself is 100% owned by Trident Trust Company (HK) Limited, the trustee of Generations United Trust, with Zhenfa Han as the settlor, beneficiary, and protector; and (ii) 0.01% owned by Jiahe Developments Limited, which itself is 100% owned by Zhenfa Han. Accordingly, Zhenfa Han may be deemed to indirectly beneficially own the securities of the Issuer held by Securingium Holding Limited.

Vanguards Skyline Holdings Limited is 100% owned by Changchun Feier Investment Center (Limited Partnership), which is 64.81% owned by, and ultimately controlled by its managing partner, Zhenfa Han. Accordingly, Zhenfa Han may be deemed to indirectly beneficially own the securities of the Issuer held by Vanguards Skyline Holdings Limited.

VVAX Holdings Limited is 100% owned by Jilin Zhengye Group Co., Ltd., which is 99% owned by Zhenfa Han. Accordingly, Zhenfa Han may be deemed to indirectly beneficially own the securities of the Issuer held by VVAX Holdings Limited.</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>Address of Securingium Holding Limited: Sea Meadow House, P.O. Box 116, Road Town, Tortola, British Virgin Islands.
Address of TSset Holding Limited: Trident Chambers, P.O. Box 146, Road Town, Tortola, British Virgin Islands.
Address of Trident Trust Company (HK) Limited: 14/F, Golden Centre, 188 Des Voeux Road, Central, Hong Kong.
Address of Jiahe Developments Limited: P.O. Box 146, Road Town, Tortola VG1110, British Virgin Islands.
Address of Vanguards Skyline Holdings Limited: Sea Meadow House, P.O. Box 116, Road Town, Tortola, British Virgin Islands.
Address of Changchun Feier Investment Center: No. 322 Liaoning Road, Kuancheng District, Changchun City, Jilin Province, China 130051.
Address of VVAX Holdings Limited: Sea Meadow House, P.O. Box 116, Road Town, Tortola, British Virgin Islands.
Address of Jilin Zhengye Group Co., Ltd.: No. 57 Changjiang Road, Changchun City, China 130000.
Business address of Zhenfa Han: No.1 Lianmeng Road, Jilin Economic &amp; Technical Development Zone, Jilin City, Jilin Province, China 132101.</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Securingium Holding Limited: British Virgin Islands
TSset Holding Limited: British Virgin Islands
Trident Trust Company (HK) Limited: Hong Kong
Jiahe Developments Limited: British Virgin Islands
Vanguards Skyline Holdings Limited: British Virgin Islands
Changchun Feier Investment Center: China
VVAX Holdings Limited: British Virgin Islands
Jilin Zhengye Group Co., Ltd.: China
Zhenfa Han: China</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</amountBeneficiallyOwned>
        <classPercent>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>The information requested in these paragraphs is incorporated herein by reference to the cover pages to this Schedule 13G.</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <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>
    <exhibitInfo>Exhibit 99.1 Joint Filing Agreement</exhibitInfo>
    <signatureInformation>
      <reportingPersonName>Securingium Holding Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>TSet Holding Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Trident Trust Company (HK) Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Markus Grosmann</signature>
        <title>Markus Grosmann/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Jiahe Developments Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Vanguards Skyline Holdings Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Changchun Feier Investment Center (Limited Partnership)</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>VVAX Holdings Limited</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Jilin Zhengye Group Co., Ltd.</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han/Director</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Zhenfa Han</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Zhenfa Han</signature>
        <title>Zhenfa Han</title>
        <date>02/21/2025</date>
      </signatureDetails>
    </signatureInformation>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ea023120001ex99-1_zhengye.htm
<DESCRIPTION>JOINT FILING AGREEMENT
<TEXT>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: right"><FONT STYLE="font-family: Times New Roman, Times, Serif"><B><U>Exhibit
99.1</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B><U>JOINT
FILING AGREEMENT</U></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><FONT STYLE="text-transform: uppercase"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">In accordance with Rule
13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all
other Reporting Persons (as such term is defined in the Schedule 13G referred to below) on behalf of each of them of a statement on Schedule
13G (including amendments thereto) with respect to the ordinary shares, par value of US$0.000025 per share, of Zhengye Biotechnology Holding
Limited, a Cayman Islands exempted company, and that this Agreement may be included as an exhibit to such joint filing. This Agreement
may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">IN WITNESS WHEREOF, the
undersigned hereby execute this Agreement as of February 21, 2025.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.5in">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="vertical-align: top">
    <TD STYLE="width: 60%">&nbsp;</TD>
    <TD STYLE="width: 40%"><FONT STYLE="font-size: 10pt">Securingium Holding Limited</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>TSet Holding Limited</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Trident Trust Company (HK) Limited</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Markus Grossmann</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Markus Grossmann</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Jiahe Developments Limited</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Vanguards Skyline Holdings Limited</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Changchun Feier Investment Center</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>VVAX Holdings Limited</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>Jilin Zhengye Group Co., Ltd.</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><FONT STYLE="font-size: 10pt"><I>/s/ Zhenfa Han</I></FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Title: Director</FONT></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD STYLE="border-bottom: black 1.5pt solid"><I>/s/ Zhenfa Han</I></TD></TR>
  <TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD><FONT STYLE="font-size: 10pt">Name: Zhenfa Han</FONT></TD></TR>
  </TABLE>


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