diff --git a/_data/chains/eip155-321.json b/_data/chains/eip155-321.json
new file mode 100644
index 00000000..fd73f514
--- /dev/null
+++ b/_data/chains/eip155-321.json
@@ -0,0 +1,24 @@
+{
+  "name": "KuCoin Community Chain Mainnet",
+  "chain": "KCC",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc-mainnet.kcc.network",
+    "wss://rpc-ws-mainnet.kcc.network"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "KuCoin Token",
+    "symbol": "KCS",
+    "decimals": 18
+  },
+  "infoURL": "https://kcc.io",
+  "shortName": "kcs",
+  "chainId": 321,
+  "networkId": 321,
+  "explorers": [{
+    "name": "KCC Explorer",
+    "url": "https://explorer.kcc.io/en",
+    "standard": "EIP3091"
+  }]
+}
diff --git a/_data/chains/eip155-322.json b/_data/chains/eip155-322.json
index 1c97c30c..ceb59bc8 100644
--- a/_data/chains/eip155-322.json
+++ b/_data/chains/eip155-322.json
@@ -10,11 +10,11 @@
   ],
   "nativeCurrency": {
     "name": "KuCoin Testnet Token",
-    "symbol": "KCS",
+    "symbol": "tKCS",
     "decimals": 18
   },
   "infoURL": "https://scan-testnet.kcc.network",
-  "shortName": "kcc",
+  "shortName": "kcst",
   "chainId": 322,
   "networkId": 322,
   "explorers": [{