diff --git a/_data/chains/eip155-2999.json b/_data/chains/eip155-2999.json
new file mode 100644
index 00000000..518b2dce
--- /dev/null
+++ b/_data/chains/eip155-2999.json
@@ -0,0 +1,23 @@
+{
+  "name": "BitYuan Mainnet",
+  "chain": "BTY",
+  "rpc": ["https://mainnet.bityuan.com/eth"],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "BTY",
+    "symbol": "BTY",
+    "decimals": 18
+  },
+  "infoURL": "https://www.bityuan.com",
+  "shortName": "bty",
+  "chainId": 2999,
+  "networkId": 2999,
+  "icon": "bty",
+  "explorers": [
+    {
+      "name": "BitYuan Block Chain Explorer",
+      "url": "https://mainnet.bityuan.com",
+      "standard": "none"
+    }
+  ]
+}
diff --git a/_data/icons/bty.json b/_data/icons/bty.json
new file mode 100644
index 00000000..198e55e1
--- /dev/null
+++ b/_data/icons/bty.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmUmJVof2m5e4HUXb3GmijWUFsLUNhrQiwwQG3CqcXEtHt",
+    "width": 91,
+    "height": 24,
+    "format": "png"
+  }
+]
diff --git a/_data/iconsDownload/QmUmJVof2m5e4HUXb3GmijWUFsLUNhrQiwwQG3CqcXEtHt b/_data/iconsDownload/QmUmJVof2m5e4HUXb3GmijWUFsLUNhrQiwwQG3CqcXEtHt
new file mode 100644
index 00000000..bee2ba12
Binary files /dev/null and b/_data/iconsDownload/QmUmJVof2m5e4HUXb3GmijWUFsLUNhrQiwwQG3CqcXEtHt differ