diff --git a/_data/chains/eip155-52.json b/_data/chains/eip155-52.json
new file mode 100644
index 00000000..8ad5d8ea
--- /dev/null
+++ b/_data/chains/eip155-52.json
@@ -0,0 +1,18 @@
+{
+  "name": "CoinEx Smart Chain Mainnet",
+  "chain": "csc",
+  "network": "mainnet",
+  "rpc": [
+    ""
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "CoinEx Chain Native Token",
+    "symbol": "cet",
+    "decimals": 18
+  },
+  "infoURL": "",
+  "shortName": "csc",
+  "chainId": 52,
+  "networkId": 52
+}
diff --git a/_data/chains/eip155-53.json b/_data/chains/eip155-53.json
new file mode 100644
index 00000000..b2885510
--- /dev/null
+++ b/_data/chains/eip155-53.json
@@ -0,0 +1,18 @@
+{
+  "name": "CoinEx Smart Chain Testnet",
+  "chain": "csc",
+  "network": "testnet",
+  "rpc": [
+    ""
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "CoinEx Chain Test Native Token",
+    "symbol": "cett",
+    "decimals": 18
+  },
+  "infoURL": "",
+  "shortName": "csct",
+  "chainId": 53,
+  "networkId": 53
+}