diff --git a/packages/constants/src/lib/constants/constants.ts b/packages/constants/src/lib/constants/constants.ts
index 6efc9975e..24edec4b2 100644
--- a/packages/constants/src/lib/constants/constants.ts
+++ b/packages/constants/src/lib/constants/constants.ts
@@ -1176,6 +1176,72 @@ export const LIT_CHAINS: LITChain<LITEVMChain> = {
     type: null,
     vmType: 'EVM',
   },
+  elastosSmartChainMainnet: {
+    contractAddress: null,
+    chainId: 20,
+    name: 'Elastos Smart Chain Mainnet',
+    symbol: 'ELA',
+    decimals: 18,
+    rpcUrls: ['https://api.elastos.io/esc'],
+    blockExplorerUrls: ['https://esc.elastos.io'],
+    type: null,
+    vmType: 'EVM',
+  },
+  elastosSmartChainTestnet: {
+    contractAddress: null,
+    chainId: 21,
+    name: 'Elastos Smart Chain Testnet',
+    symbol: 'ELA',
+    decimals: 18,
+    rpcUrls: ['https://api-testnet.elastos.io/esc'],
+    blockExplorerUrls: ['https://esc-testnet.elastos.io'],
+    type: null,
+    vmType: 'EVM',
+  },
+  elastosIdentityChainMainnet: {
+    contractAddress: null,
+    chainId: 22,
+    name: 'Elastos Identity Chain Mainnet',
+    symbol: 'EID',
+    decimals: 18,
+    rpcUrls: ['https://api.elastos.io/eid'],
+    blockExplorerUrls: ['https://eid.elastos.io'],
+    type: null,
+    vmType: 'EVM',
+  },
+  elastosIdentityChainTestnet: {
+    contractAddress: null,
+    chainId: 23,
+    name: 'Elastos Identity Chain Testnet',
+    symbol: 'EID',
+    decimals: 18,
+    rpcUrls: ['https://api-testnet.elastos.io/eid'],
+    blockExplorerUrls: ['https://eid-testnet.elastos.io'],
+    type: null,
+    vmType: 'EVM',
+  },
+  taikoAlethiaMainnet: {
+    contractAddress: null,
+    chainId: 167000,
+    name: 'Taiko Alethia Mainnet',
+    symbol: 'ETH',
+    decimals: 18,
+    rpcUrls: ['https://rpc.taiko.xyz'],
+    blockExplorerUrls: ['https://taikoscan.io'],
+    type: null,
+    vmType: 'EVM',
+  },
+  taikoHeklaTestnet: {
+    contractAddress: null,
+    chainId: 167009,
+    name: 'Taiko Hekla Testnet',
+    symbol: 'ETH',
+    decimals: 18,
+    rpcUrls: ['https://rpc.hekla.taiko.xyz'],
+    blockExplorerUrls: ['https://hekla.taikoscan.io'],
+    type: null,
+    vmType: 'EVM',
+  },
   confluxEspaceMainnet: {
     contractAddress: null,
     chainId: 1030,