diff --git a/.env.example b/.env.example
index f8d739561..2f45d28b9 100644
--- a/.env.example
+++ b/.env.example
@@ -71,6 +71,7 @@ MATTERS_SLACK_TOKEN=
 MATTERS_SLACK_PAYOUT_CHANNEL=
 MATTERS_SLACK_STRIPE_ALERT_CHANNEL=
 MATTERS_SLACK_QUEUE_CHANNEL=
+MATTERS_SLACK_CURATION_VAULT_CHANNEL=
 APOLLO_KEY=
 APOLLO_GRAPH_REF=
 MATTERS_OPENSEA_API_BASE=https://rinkeby-api.opensea.io/api/v1
diff --git a/package.json b/package.json
index 8b3059bf6..bfb07dfc3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "matters-server",
-  "version": "5.6.2",
+  "version": "5.8.0",
   "description": "Matters Server",
   "author": "Matters <hi@matters.news>",
   "main": "build/index.js",
diff --git a/src/common/enums/payment.ts b/src/common/enums/payment.ts
index 107ee6895..0e225c27d 100644
--- a/src/common/enums/payment.ts
+++ b/src/common/enums/payment.ts
@@ -81,6 +81,12 @@ export const BLOCKCHAIN_RPC: { [chainId: string]: string } = {
   [optimismSepolia.id]: `https://opt-sepolia.g.alchemy.com/v2/${environment.alchemyApiKey}`,
 }
 
+export const BLOCKCHAIN_EXPLORER = {
+  [BLOCKCHAIN.Optimism]: isProd
+    ? optimism.blockExplorers.default
+    : optimismSepolia.blockExplorers.default, // TODO: update to etherscan
+}
+
 // via https://support.kraken.com/hc/en-us/articles/203325283-Cryptocurrency-deposit-processing-times
 export const BLOCKCHAIN_SAFE_CONFIRMS: { [key in GQLChain]: number } = {
   Polygon: 70,
diff --git a/src/common/environment.ts b/src/common/environment.ts
index b667448cf..a4b53f447 100644
--- a/src/common/environment.ts
+++ b/src/common/environment.ts
@@ -122,6 +122,8 @@ export const environment = {
   slackPayoutChannel: process.env.MATTERS_SLACK_PAYOUT_CHANNEL || '',
   slackStripeAlertChannel: process.env.MATTERS_SLACK_STRIPE_ALERT_CHANNEL || '',
   slackStripeQueueChannel: process.env.MATTERS_SLACK_QUEUE_CHANNEL || '',
+  slackCurationVaultChannel:
+    process.env.MATTERS_SLACK_CURATION_VAULT_CHANNEL || '',
   openseaAPIBase:
     process.env.MATTERS_OPENSEA_API_BASE ||
     (isProd
diff --git a/src/connectors/slack/index.ts b/src/connectors/slack/index.ts
index e2ce41939..95b2800f8 100644
--- a/src/connectors/slack/index.ts
+++ b/src/connectors/slack/index.ts
@@ -87,6 +87,41 @@ class SlackService {
     }
   }
 
+  public sendVaultWithdrawMessage = async ({
+    amount,
+    state,
+    txDbId,
+    userName,
+    txHash,
+  }: {
+    amount: number | string
+    state: SLACK_MESSAGE_STATE
+    txDbId: string
+    userName: string
+    txHash?: string
+  }) => {
+    try {
+      await this.client.chat.postMessage({
+        channel: environment.slackCurationVaultChannel,
+        text: `[${environment.env}] - Vault withdraw request is ${state}.`,
+        attachments: [
+          {
+            color: this.getMessageColor(state),
+            text:
+              '\n' +
+              `\n- *Matters ID:* ${userName}` +
+              `\n- *DB Tx ID*: ${txDbId}` +
+              `\n- *On-chain Tx*: ${txHash || 'N/A'}` +
+              `\n- *Amount*: ${amount} USD`,
+          },
+        ],
+        markdown: true,
+      })
+    } catch (error) {
+      logger.error(error)
+    }
+  }
+
   /**
    * Send alert realted to stripe issues.
    */
diff --git a/src/mutations/user/withdrawLockedTokens.ts b/src/mutations/user/withdrawLockedTokens.ts
index d41f2e534..ce4703a34 100644
--- a/src/mutations/user/withdrawLockedTokens.ts
+++ b/src/mutations/user/withdrawLockedTokens.ts
@@ -4,10 +4,13 @@ import { v4 } from 'uuid'
 import { formatUnits } from 'viem'
 
 import {
+  BLOCKCHAIN,
+  BLOCKCHAIN_EXPLORER,
   BLOCKCHAIN_TRANSACTION_STATE,
   NOTICE_TYPE,
   PAYMENT_CURRENCY,
   PAYMENT_PROVIDER,
+  SLACK_MESSAGE_STATE,
   TRANSACTION_PURPOSE,
   TRANSACTION_STATE,
   USER_STATE,
@@ -19,6 +22,7 @@ import {
   ServerError,
 } from 'common/errors'
 import { CurationVaultContract } from 'connectors/blockchain/curationVault'
+import SlackService from 'connectors/slack'
 
 const resolver: GQLMutationResolvers['withdrawLockedTokens'] = async (
   _,
@@ -66,6 +70,7 @@ const resolver: GQLMutationResolvers['withdrawLockedTokens'] = async (
 
   const contract = new CurationVaultContract()
   const client = await contract.getClient()
+  const slack = new SlackService()
 
   // check withdraw amount
   const vaultAmount = await contract.getWithdrawableUSDTAmount(viewer.id)
@@ -129,6 +134,14 @@ const resolver: GQLMutationResolvers['withdrawLockedTokens'] = async (
         { type: 'target', entityTable: 'transaction', entity: transaction },
       ],
     })
+
+    slack.sendVaultWithdrawMessage({
+      amount: transaction.amount,
+      state: SLACK_MESSAGE_STATE.successful,
+      txDbId: transaction.id,
+      userName: viewer.userName,
+      txHash: `${BLOCKCHAIN_EXPLORER[BLOCKCHAIN.Optimism].url}/tx/${txHash}`,
+    })
   } catch (error) {
     console.error(error)
 
@@ -154,6 +167,13 @@ const resolver: GQLMutationResolvers['withdrawLockedTokens'] = async (
       ],
     })
 
+    slack.sendVaultWithdrawMessage({
+      amount: transaction.amount,
+      state: SLACK_MESSAGE_STATE.failed,
+      txDbId: transaction.id,
+      userName: viewer.userName,
+    })
+
     throw new ServerError('failed to withdraw locked tokens')
   }
 
diff --git a/src/queries/user/wallet/balance.ts b/src/queries/user/wallet/balance.ts
index 640853ea7..aa9a74608 100644
--- a/src/queries/user/wallet/balance.ts
+++ b/src/queries/user/wallet/balance.ts
@@ -12,6 +12,7 @@ const resolver: GQLWalletResolvers['balance'] = async (
       HKD: 0,
     }
   }
+
   const HKD = await paymentService.calculateBalance({
     userId: id,
     currency: PAYMENT_CURRENCY.HKD,