diff --git a/src/sourcify-chains.ts b/src/sourcify-chains.ts
index afe4a8279..5bcfa87c4 100644
--- a/src/sourcify-chains.ts
+++ b/src/sourcify-chains.ts
@@ -910,6 +910,13 @@ const sourcifyChainsExtensions: SourcifyChainsExtensionsObject = {
       "https://explorer.testnet.kava.io/" + BLOCKSCOUT_SUFFIX,
     txRegex: getBlockscoutRegex(),
   },
+  "111000": {
+    supported: true,
+    monitored: false,
+    contractFetchAddress:
+      "https://http://explorer.test.siberium.net/" + BLOCKSCOUT_SUFFIX,
+    txRegex: getBlockscoutRegex(),
+  },
 };
 
 const sourcifyChainsMap: SourcifyChainMap = {};
diff --git a/test/chains/chain-tests.js b/test/chains/chain-tests.js
index dcdf3932d..7e2af9236 100644
--- a/test/chains/chain-tests.js
+++ b/test/chains/chain-tests.js
@@ -913,6 +913,15 @@ describe("Test Supported Chains", function () {
     "shared/1_Storage.metadata.json"
   );
 
+  // Siberium Testnet
+  verifyContract(
+    "0x60E9b3CD8C160Ce6408dD6E2Fa938895cfF7E087",
+    "111000",
+    "Siberium Testnet",
+    ["shared/1_Storage.sol"],
+    "shared/1_Storage.metadata.json"
+  );
+
   // Ethereum Classic Mainnet
   verifyContract(
     "0x45a82B987a4e5d7D00eD5aB325DF00850cDAbBAC",