diff --git a/shared/constants/network.ts b/shared/constants/network.ts
index f7979eb85..50c1ba903 100644
--- a/shared/constants/network.ts
+++ b/shared/constants/network.ts
@@ -140,6 +140,8 @@ export const CHAIN_IDS = {
   OPTIMISM_TESTNET: '0x1a4',
   BASE: '0x2105',
   BASE_TESTNET: '0x14a33',
+  OPBNB: '0xcc',
+  OPBNB_TESTNET: '0x15eb',
   POLYGON: '0x89',
   POLYGON_TESTNET: '0x13881',
   AVALANCHE: '0xa86a',
@@ -557,6 +559,8 @@ export const BUYABLE_CHAINS_MAP: {
     | typeof CHAIN_IDS.OPTIMISM_TESTNET
     | typeof CHAIN_IDS.BASE_TESTNET
     | typeof CHAIN_IDS.BASE
+    | typeof CHAIN_IDS.OPBNB_TESTNET
+    | typeof CHAIN_IDS.OPBNB
     | typeof CHAIN_IDS.BSC_TESTNET
     | typeof CHAIN_IDS.POLYGON_TESTNET
     | typeof CHAIN_IDS.AVALANCHE_TESTNET
diff --git a/ui/selectors/selectors.js b/ui/selectors/selectors.js
index 4a2a50698..4d77bcec8 100644
--- a/ui/selectors/selectors.js
+++ b/ui/selectors/selectors.js
@@ -1353,13 +1353,21 @@ export function getIsBase(state) {
   );
 }
 
+export function getIsOpbnb(state) {
+  return (
+    getCurrentChainId(state) === CHAIN_IDS.OPBNB ||
+    getCurrentChainId(state) === CHAIN_IDS.OPBNB_TESTNET
+  );
+}
+
 export function getIsOpStack(state) {
-  return getIsOptimism(state) || getIsBase(state);
+  return getIsOptimism(state) || getIsBase(state) || getIsOpbnb(state);
 }
 
 export function getIsMultiLayerFeeNetwork(state) {
   return getIsOpStack(state);
 }
+
 /**
  *  To retrieve the maxBaseFee and priorityFee the user has set as default
  *