diff --git a/_data/chains/eip155-1853.json b/_data/chains/eip155-1853.json
new file mode 100644
index 000000000000..76e0be5cd680
--- /dev/null
+++ b/_data/chains/eip155-1853.json
@@ -0,0 +1,28 @@
+{
+  "name": "HighOctane Subnet",
+  "chain": "HighOctane Subnet",
+  "rpc": [
+    "https://subnets.avax.network/highoctane/mainnet/rpc",
+    "wss://subnets.avax.network/highoctane/mainnet/ws"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "HighOctane",
+    "symbol": "HO",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://subnets.avax.network/highoctane/details",
+  "shortName": "HighOctane",
+  "chainId": 1853,
+  "networkId": 1853,
+  "icon": "highOctane",
+  "explorers": [
+    {
+      "name": "HighOctane Subnet Explorer",
+      "url": "https://subnets.avax.network/highoctane",
+      "icon": "highOctane",
+      "standard": "EIP3091"
+    }
+  ]
+}
diff --git a/_data/icons/highOctane.json b/_data/icons/highOctane.json
new file mode 100644
index 000000000000..28287cfb72ea
--- /dev/null
+++ b/_data/icons/highOctane.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmW6MKK6M9EZ7dinit7e6f97kVADL1HBAts8QiDzbFcMvo",
+    "width": 331,
+    "height": 331,
+    "format": "png"
+  }
+]