diff --git a/sdks/sdk-core/src/chains.ts b/sdks/sdk-core/src/chains.ts
index 75c2799ea..f91429aa6 100644
--- a/sdks/sdk-core/src/chains.ts
+++ b/sdks/sdk-core/src/chains.ts
@@ -29,6 +29,7 @@ export enum ChainId {
   UNICHAIN = 130,
   MONAD_TESTNET = 10143,
   SONEIUM = 1868,
+  ETERIA = 140,
 }
 
 export const SUPPORTED_CHAINS = [
@@ -60,6 +61,7 @@ export const SUPPORTED_CHAINS = [
   ChainId.UNICHAIN,
   ChainId.MONAD_TESTNET,
   ChainId.SONEIUM,
+  ChainId.ETERIA,
 ] as const
 export type SupportedChainsType = (typeof SUPPORTED_CHAINS)[number]
 
@@ -73,4 +75,5 @@ export enum NativeCurrencyName {
   BNB = 'BNB',
   AVAX = 'AVAX',
   ROOTSTOCK = 'RBTC',
+  ETERIA = 'ERA'
 }