<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-08-18</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001124105</issuerCik>
        <issuerName>GYRE THERAPEUTICS, INC.</issuerName>
        <issuerTradingSymbol>GYRE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002083482</rptOwnerCik>
            <rptOwnerName>Weng Dan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GYRE THERAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>12770 HIGH BLUFF DRIVE, SUITE 150</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ Ruoyu Chen, as attorney-in-fact for Dan Weng</signatureName>
        <signatureDate>2025-08-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
