diff --git a/_data/chains/eip155-596.json b/_data/chains/eip155-596.json
new file mode 100644
index 00000000..d3d7edc6
--- /dev/null
+++ b/_data/chains/eip155-596.json
@@ -0,0 +1,16 @@
+{
+  "name": "Karura Network Testnet",
+  "chain": "KAR",
+  "rpc": [],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Karura Token",
+    "symbol": "KAR",
+    "decimals": 18
+  },
+  "infoURL": "https://karura.network",
+  "shortName": "tkar",
+  "chainId": 596,
+  "networkId": 596,
+  "slip44": 596 
+}
diff --git a/_data/chains/eip155-597.json b/_data/chains/eip155-597.json
new file mode 100644
index 00000000..b7d4568e
--- /dev/null
+++ b/_data/chains/eip155-597.json
@@ -0,0 +1,16 @@
+{
+  "name": "Acala Network Testnet",
+  "chain": "ACA",
+  "rpc": [],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Acala Token",
+    "symbol": "ACA",
+    "decimals": 18
+  },
+  "infoURL": "https://acala.network",
+  "shortName": "taca",
+  "chainId": 597,
+  "networkId": 597,
+  "slip44": 597
+}