diff --git a/modules/adoceanBidAdapter.js b/modules/adoceanBidAdapter.js
index 0c23f5e3d8a..bf5596ab22a 100644
--- a/modules/adoceanBidAdapter.js
+++ b/modules/adoceanBidAdapter.js
@@ -6,7 +6,7 @@ const BIDDER_CODE = 'adocean';
 function buildEndpointUrl(emiter, payloadMap) {
   const payload = [];
   _each(payloadMap, function(v, k) {
-    payload.push(k + '=' + encodeURIComponent(v));
+    payload.push(k + '=' + (k === 'schain' ? v : encodeURIComponent(v)));
   });
 
   const randomizedPart = Math.random().toString().slice(2);
@@ -23,6 +23,10 @@ function buildRequest(masterBidRequests, masterId, gdprConsent) {
     payload.gdpr_consent = gdprConsent.consentString || undefined;
     payload.gdpr = gdprConsent.gdprApplies ? 1 : 0;
   }
+  const anyKey = Object.keys(masterBidRequests)[0];
+  if (masterBidRequests[anyKey].schain) {
+    payload.schain = serializeSupplyChain(masterBidRequests[anyKey].schain);
+  }
 
   const bidIdMap = {};
 
@@ -48,6 +52,30 @@ function buildRequest(masterBidRequests, masterId, gdprConsent) {
   };
 }
 
+const SCHAIN_FIELDS = ['asi', 'sid', 'hp', 'rid', 'name', 'domain', 'ext'];
+function serializeSupplyChain(schain) {
+  const header = `${schain.ver},${schain.complete}!`;
+
+  const serializedNodes = [];
+  _each(schain.nodes, function(node) {
+    const serializedNode = SCHAIN_FIELDS
+      .map(fieldName => {
+        if (fieldName === 'ext') {
+          // do not serialize ext data, just mark if it was available
+          return ('ext' in node ? '1' : '0');
+        }
+        if (fieldName in node) {
+          return encodeURIComponent(node[fieldName]).replace(/!/g, '%21');
+        }
+        return '';
+      })
+      .join(',');
+    serializedNodes.push(serializedNode);
+  });
+
+  return header + serializedNodes.join('!');
+}
+
 function assignToMaster(bidRequest, bidRequestsByMaster) {
   const masterId = bidRequest.params.masterId;
   const slaveId = bidRequest.params.slaveId;
diff --git a/test/spec/modules/adoceanBidAdapter_spec.js b/test/spec/modules/adoceanBidAdapter_spec.js
index 43316cd7483..ba691825112 100644
--- a/test/spec/modules/adoceanBidAdapter_spec.js
+++ b/test/spec/modules/adoceanBidAdapter_spec.js
@@ -83,6 +83,20 @@ describe('AdoceanAdapter', function () {
         'auctionId': '1d1a030790a475',
       }
     ];
+    const schainExample = {
+      'schain': {
+        ver: '1.0',
+        complete: 1,
+        nodes: [
+          {
+            asi: 'directseller.com',
+            sid: '00001!,2',
+            rid: 'BidRequest1',
+            hp: 1
+          }
+        ]
+      }
+    };
 
     const bidderRequest = {
       gdprConsent: {
@@ -134,7 +148,17 @@ describe('AdoceanAdapter', function () {
       expect(requests[0].url).to.include('aosspsizes=myaozpniqismex~300x250_300x600-myaowafpdwlrks~300x200_600x250');
       expect((requests[0].url.match(/aosspsizes=/g) || []).length).to.equal(1);
     });
-  })
+
+    it('should attach schain parameter if available', function() {
+      let requests = spec.buildRequests(bidRequests, bidderRequest);
+      expect(requests.some(e => e.url.includes('schain='))).to.be.false;
+
+      const bidsWithSchain = deepClone(bidRequests).map(e => ({...e, ...schainExample}));
+      requests = spec.buildRequests(bidsWithSchain, bidderRequest);
+      expect(requests.every(e => e.url.includes('schain=1.0,1!directseller.com,00001%21%2C2,1,BidRequest1,,,0')),
+        `One of urls does not contain valid schain param: ${requests.map(e => e.url).join('\n')}`).to.be.true;
+    });
+  });
 
   describe('interpretResponse', function () {
     const response = {