# πŸ›  How to Migrate COIM (Old) β†’ COIMx (New) > A Step-by-Step Guide to Seamlessly Swap Your Old COIM Tokens for COIMx **Published by:** [CoinMath](https://paragraph.com/@coinmath/) **Published on:** 2025-03-13 **Categories:** coimx, coinmath, migration **URL:** https://paragraph.com/@coinmath/how-to-migrate-coimx ## Content πŸ“Œ New COIMx Token Address:πŸ“Œ View on BaseScan 0xb3fdca9149ceb33631b4803aec889515cbcaa2beπŸ“Œ Old COIM Token Address:0xD2237D9fE0c36721220e4bD88aa85b55ffDA0E84πŸ”„ Migration Process (With 3% Fee Deduction)🚨 Important: During migration, a 3% transaction fee will be applied. This means:1% will be burned πŸ”₯ (deflationary)1% will go to the marketing wallet 🎯1% will be added to liquidity πŸ’§πŸ’‘ Users must approve and migrate the exact amount they want to swap. The contract will automatically deduct the 3% fee from the migrated amount.βœ… Step 1: Approve Old COIM Tokens1⃣ Go to the Old COIM contract β†’ Click Here 2⃣ Click "Write Contract" β†’ Connect Wallet 3⃣ Find approve(spender, amount)Spender: 0xb3fdca9149ceb33631b4803aec889515cbcaa2be (New COIMx contract)Amount: (How much you want to migrate, with 8 decimals)Example:If you want to migrate 100 COIM, approve 100 COIM (10000000000 units in 8 decimals).If you want to migrate 50 COIM, approve 50 COIM (5000000000 units in 8 decimals). 4⃣ Click "Write" and confirm in MetaMask.βœ… Step 2: Migrate to COIMx1⃣ Go to the New COIMx contract β†’ Click Here 2⃣ Click "Write Contract" β†’ Connect Wallet 3⃣ Find migrateOldTokens(amount)Amount: (Enter the exact amount you approved in Step 1)🚨 The 3% fee will be deducted automatically by the contract.Example:If you migrate 100 COIM, you will receive 97 COIMx.If you migrate 50 COIM, you will receive 48.5 COIMx. 4⃣ Click "Write", confirm in MetaMask.πŸŽ‰ You're Done!βœ… You will receive COIMx tokens 1:1 minus the 3% fee. βœ… Your new balance will reflect in your wallet after the transaction is confirmed.πŸ“Œ Final Notes:βœ… Users must use the new COIMx contract only!βœ… Old COIM is only for migration; it won't be used afterward.βœ… If users don't see COIMx in their wallet, they should manually add the new COIMx contract in MetaMask. βœ… The 3% fee is automatically deducted from every migration transactionβ€”users do NOT need to adjust the amount manually. ## Publication Information - [CoinMath](https://paragraph.com/@coinmath/): Publication homepage - [All Posts](https://paragraph.com/@coinmath/): More posts from this publication - [RSS Feed](https://api.paragraph.com/blogs/rss/@coinmath): Subscribe to updates - [Twitter](https://twitter.com/coinmath_app): Follow on Twitter ## Optional - [Collect as NFT](https://paragraph.com/@coinmath/how-to-migrate-coimx): Support the author by collecting this post - [View Collectors](https://paragraph.com/@coinmath/how-to-migrate-coimx/collectors): See who has collected this post