diff --git a/_data/chains/eip155-999.json b/_data/chains/eip155-999.json
new file mode 100644
index 00000000..fb95ed9e
--- /dev/null
+++ b/_data/chains/eip155-999.json
@@ -0,0 +1,18 @@
+{
+  "name": "Wanchain",
+  "chain": "WAN",
+  "network": "testnet",
+  "rpc": [
+    "https://gwan-ssl.wandevs.org:46891/"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Wancoin",
+    "symbol": "WAN",
+    "decimals": 18
+  },
+  "infoURL": "https://testnet.wanscan.org",
+  "shortName": "wan",
+  "chainId": 999,
+  "networkId": 999
+}