diff --git a/_data/chains/eip155-234666.json b/_data/chains/eip155-234666.json
new file mode 100644
index 00000000..2a1cc4e2
--- /dev/null
+++ b/_data/chains/eip155-234666.json
@@ -0,0 +1,19 @@
+{
+  "name": "Haymo Testnet",
+  "chain": "tHYM",
+  "network": "testnet",
+  "rpc": [
+    "https://testnet1.haymo.network"
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "HAYMO",
+    "symbol": "HYM",
+    "decimals": 18
+  },
+  "infoURL": "https://haymoswap.web.app/",
+  "shortName": "hym",
+  "chainId": 234666,
+  "networkId": 234666
+}