diff --git a/modules/consentManagement.js b/modules/consentManagement.js
index 0c48d8c854c..90fe24735db 100644
--- a/modules/consentManagement.js
+++ b/modules/consentManagement.js
@@ -371,7 +371,7 @@ function cmpFailed(errMsg, hookConfig, extraArgs) {
 }
 
 /**
- * Stores CMP data locally in module and then invokes gdprDataHandler.setConsentData() to make information available in adaptermanger.js for later in the auction
+ * Stores CMP data locally in module and then invokes gdprDataHandler.setConsentData() to make information available in adaptermanager.js for later in the auction
  * @param {object} cmpConsentObject required; an object representing user's consent choices (can be undefined in certain use-cases for this function only)
  */
 function storeConsentData(cmpConsentObject) {
@@ -387,6 +387,9 @@ function storeConsentData(cmpConsentObject) {
       vendorData: (cmpConsentObject) || undefined,
       gdprApplies: cmpConsentObject && typeof cmpConsentObject.gdprApplies === 'boolean' ? cmpConsentObject.gdprApplies : gdprScope
     };
+    if (cmpConsentObject.addtlConsent && utils.isStr(cmpConsentObject.addtlConsent)) {
+      consentData.addtlConsent = cmpConsentObject.addtlConsent;
+    };
   }
   consentData.apiVersion = cmpVersion;
   gdprDataHandler.setConsentData(consentData);
diff --git a/modules/prebidServerBidAdapter/index.js b/modules/prebidServerBidAdapter/index.js
index 1007305b324..b3d559d956f 100644
--- a/modules/prebidServerBidAdapter/index.js
+++ b/modules/prebidServerBidAdapter/index.js
@@ -641,6 +641,9 @@ const OPEN_RTB_PROTOCOL = {
         }
         utils.deepSetValue(request, 'regs.ext.gdpr', gdprApplies);
         utils.deepSetValue(request, 'user.ext.consent', firstBidRequest.gdprConsent.consentString);
+        if (firstBidRequest.gdprConsent.addtlConsent && typeof firstBidRequest.gdprConsent.addtlConsent === 'string') {
+          utils.deepSetValue(request, 'user.ext.ConsentedProvidersSettings.consented_providers', firstBidRequest.gdprConsent.addtlConsent);
+        }
       }
 
       // US Privacy (CCPA) support
diff --git a/test/spec/modules/consentManagement_spec.js b/test/spec/modules/consentManagement_spec.js
index 3ebebfef1ee..deaacbc5a28 100644
--- a/test/spec/modules/consentManagement_spec.js
+++ b/test/spec/modules/consentManagement_spec.js
@@ -643,6 +643,32 @@ describe('consentManagement', function () {
           expect(consent.apiVersion).to.equal(2);
         });
 
+        it('performs lookup check and stores consentData for a valid existing user with additional consent', function () {
+          let testConsentData = {
+            tcString: 'abc12345234',
+            addtlConsent: 'superduperstring',
+            gdprApplies: true,
+            purposeOneTreatment: false,
+            eventStatus: 'tcloaded'
+          };
+          cmpStub = sinon.stub(window, '__tcfapi').callsFake((...args) => {
+            args[2](testConsentData, true);
+          });
+
+          setConsentConfig(goodConfigWithAllowAuction);
+
+          requestBidsHook(() => {
+            didHookReturn = true;
+          }, {});
+          let consent = gdprDataHandler.getConsentData();
+          sinon.assert.notCalled(utils.logError);
+          expect(didHookReturn).to.be.true;
+          expect(consent.consentString).to.equal(testConsentData.tcString);
+          expect(consent.addtlConsent).to.equal(testConsentData.addtlConsent);
+          expect(consent.gdprApplies).to.be.true;
+          expect(consent.apiVersion).to.equal(2);
+        });
+
         it('throws an error when processCmpData check fails + does not call requestBids callbcack even when allowAuction is true', function () {
           let testConsentData = {};
           let bidsBackHandlerReturn = false;
diff --git a/test/spec/modules/prebidServerBidAdapter_spec.js b/test/spec/modules/prebidServerBidAdapter_spec.js
index b75ede0e9db..5abe068c100 100644
--- a/test/spec/modules/prebidServerBidAdapter_spec.js
+++ b/test/spec/modules/prebidServerBidAdapter_spec.js
@@ -547,6 +547,37 @@ describe('S2S Adapter', function () {
         expect(requestBid.user).to.not.exist;
       });
 
+      it('adds additional consent information to ortb2 request depending on presence of module', function () {
+        let ortb2Config = utils.deepClone(CONFIG);
+        ortb2Config.endpoint = 'https://prebid.adnxs.com/pbs/v1/openrtb2/auction';
+
+        let consentConfig = { consentManagement: { cmpApi: 'iab' }, s2sConfig: ortb2Config };
+        config.setConfig(consentConfig);
+
+        let gdprBidRequest = utils.deepClone(BID_REQUESTS);
+        gdprBidRequest[0].gdprConsent = {
+          consentString: 'abc123',
+          addtlConsent: 'superduperconsent',
+          gdprApplies: true
+        };
+
+        adapter.callBids(REQUEST, gdprBidRequest, addBidResponse, done, ajax);
+        let requestBid = JSON.parse(server.requests[0].requestBody);
+
+        expect(requestBid.regs.ext.gdpr).is.equal(1);
+        expect(requestBid.user.ext.consent).is.equal('abc123');
+        expect(requestBid.user.ext.ConsentedProvidersSettings.consented_providers).is.equal('superduperconsent');
+
+        config.resetConfig();
+        config.setConfig({ s2sConfig: CONFIG });
+
+        adapter.callBids(REQUEST, BID_REQUESTS, addBidResponse, done, ajax);
+        requestBid = JSON.parse(server.requests[1].requestBody);
+
+        expect(requestBid.regs).to.not.exist;
+        expect(requestBid.user).to.not.exist;
+      });
+
       it('check gdpr info gets added into cookie_sync request: have consent data', function () {
         let cookieSyncConfig = utils.deepClone(CONFIG);
         cookieSyncConfig.syncEndpoint = 'https://prebid.adnxs.com/pbs/v1/cookie_sync';