diff --git a/CODEOWNERS b/CODEOWNERS
index 614b8730ac..c117c16963 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -62,6 +62,7 @@
 /modules/sdk-coin-bsc/ @BitGo/ethalt-team
 /modules/sdk-coin-canton/ @BitGo/ethalt-team
 /modules/sdk-coin-coredao/ @BitGo/ethalt-team
+/modules/sdk-coin-coreum/ @BitGo/ethalt-team
 /modules/sdk-coin-cosmos/ @BitGo/ethalt-team
 /modules/sdk-coin-cronos/ @BitGo/ethalt-team
 /modules/sdk-coin-cspr/ @BitGo/ethalt-team
diff --git a/modules/sdk-coin-coreum/src/lib/constants.ts b/modules/sdk-coin-coreum/src/lib/constants.ts
index 9eb480e28d..0dd076c21f 100644
--- a/modules/sdk-coin-coreum/src/lib/constants.ts
+++ b/modules/sdk-coin-coreum/src/lib/constants.ts
@@ -2,10 +2,12 @@ import { CosmosUtils } from '@bitgo/abstract-cosmos';
 
 const cosmosUtils = new CosmosUtils();
 export const validDenoms = ['ucore', 'utestcore', ...cosmosUtils.getTokenDenomsUsingCoinFamily('coreum')];
-export const mainnetAccountAddressRegex = /^(core)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38})$/;
+export const mainnetAccountAddressRegex =
+  /^(core)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38}|['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{58})$/;
 export const mainnetValidatorAddressRegex = /^(corevaloper)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38})$/;
 export const MAINNET_ADDRESS_PREFIX = 'core';
-export const testnetAccountAddressRegex = /^(testcore)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38})$/;
+export const testnetAccountAddressRegex =
+  /^(testcore)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38}|['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{58})$/;
 export const testnetValidatorAddressRegex = /^(testcorevaloper)1(['qpzry9x8gf2tvdw0s3jn54khce6mua7l]{38})$/;
 export const TESTNET_ADDRESS_PREFIX = 'testcore';
 
diff --git a/modules/sdk-coin-coreum/test/resources/coreum.ts b/modules/sdk-coin-coreum/test/resources/coreum.ts
index 72222feb7b..32540ce78d 100644
--- a/modules/sdk-coin-coreum/test/resources/coreum.ts
+++ b/modules/sdk-coin-coreum/test/resources/coreum.ts
@@ -19,6 +19,7 @@ export const mainnetAddress = {
   address2: 'core1ssh2d2ft6hzrgn9z6k7mmsamy2hfpxl9y8re5x',
   address3: 'core35udp7m30va5njkdrguj27wvk9lnutfwkevk7n9',
   address4: 'core1v7n3mrjg58udt7cyhv9gs62t8wcf9sh8w604yy',
+  address32byte1: 'core1pnxmcuxqvumfe6ktv40v2vm3z0zckluupzxu3uuq0f7t07w6xuwsc7td3m',
   validatorAddress1: 'corevaloper1gsaxrwfu5glgw764mqhc4t8f3yxg2h07rmwt0k',
   validatorAddress2: 'corevaloper1x9hd9r7duv2gagztvvqlw94v5gy4zd9xwhqnlm',
   validatorAddress3: 'corevaloper2flaz3hzgg3tjszl372lu2zz5jsmxd8pvydl7gg',
diff --git a/modules/sdk-coin-coreum/test/unit/utils.ts b/modules/sdk-coin-coreum/test/unit/utils.ts
index c8716daec5..08122c6f8b 100644
--- a/modules/sdk-coin-coreum/test/unit/utils.ts
+++ b/modules/sdk-coin-coreum/test/unit/utils.ts
@@ -1,7 +1,8 @@
 import { NetworkType } from '@bitgo/statics';
 import should from 'should';
 import { CoreumUtils } from '../../src/lib/utils';
-import { blockHash, mainnetCoinAmounts, txIds } from '../resources/coreum';
+import { mainnetAccountAddressRegex, testnetAccountAddressRegex } from '../../src/lib/constants';
+import { blockHash, mainnetAddress, mainnetCoinAmounts, txIds } from '../resources/coreum';
 import { testnetCoinAmounts } from '../resources/tcoreum';
 
 describe('utils', () => {
@@ -36,6 +37,32 @@ describe('utils', () => {
     should.equal(mainnetUtils.isValidTransactionId('dalij43ta0ga2dadda02'), false);
   });
 
+  it('should accept 32-byte (group module / smart contract) addresses', () => {
+    should.equal(mainnetUtils.isValidAddress(mainnetAddress.address32byte1), true);
+    should.equal(mainnetUtils.isValidAddress(`${mainnetAddress.address32byte1}?memoId=1`), true);
+  });
+
+  it('should reject 32-byte addresses with an invalid checksum', () => {
+    const corrupted = mainnetAddress.address32byte1.slice(0, -1) + 'q';
+    should.equal(mainnetUtils.isValidAddress(corrupted), false);
+  });
+
+  it('should reject addresses with intermediate data lengths (not 38 or 58 chars)', () => {
+    const bech32Chars = 'qpzry9x8gf2tvdw0s3jn54khce6mua7l';
+    const intermediateData = bech32Chars.repeat(2).slice(0, 48);
+    should.equal(mainnetAccountAddressRegex.test(`core1${intermediateData}`), false);
+    should.equal(testnetAccountAddressRegex.test(`testcore1${intermediateData}`), false);
+  });
+
+  it('testnet regex should accept both 20-byte and 32-byte address lengths', () => {
+    const data38 = 'qpzry9x8gf2tvdw0s3jn54khce6mua7lqpzry9';
+    should.equal(testnetAccountAddressRegex.test(`testcore1${data38}`), true);
+    const data58 = 'qpzry9x8gf2tvdw0s3jn54khce6mua7lqpzry9x8gf2tvdw0s3jn54khce';
+    should.equal(testnetAccountAddressRegex.test(`testcore1${data58}`), true);
+    const data39 = 'qpzry9x8gf2tvdw0s3jn54khce6mua7lqpzry9x';
+    should.equal(testnetAccountAddressRegex.test(`testcore1${data39}`), false);
+  });
+
   it('validateAmount', function () {
     should.doesNotThrow(() => mainnetUtils.validateAmountData([mainnetCoinAmounts.amount1]));
     should.doesNotThrow(() => mainnetUtils.validateAmountData([mainnetCoinAmounts.amount2]));