Deposit and withdrawal of 27 tokens (ETH and ERC-20) temporarily out of service for Ethereum London Hard Fork upgrade on 05/08/2021 from 03:00 PM (GMT+7) onwards

Modified on Thu, 15 Feb at 10:44 AM

We would like to inform you that the deposit and withdrawal of 27 tokens (ETH and ERC-20) will undergo system maintenance to support Ethereum London Hard Fork upgrade. The systems will be back in service once the upgraded network is confirmed to be stable and safe to proceed with transactions. In the meantime, the trading system of 27 tokens (ETH and ERC-20) will not be affected.


Issue      Deposit and Withdrawal of 27 Tokens (ETH and ERC-20) Temporarily Out of Service for London Hard Fork Upgrade
Date       5 August 2021
From      03:00 PM (GMT+7)
To           01:30 AM (GMT+7) on 6 August 2021


London upgrade is scheduled to start at block 12,965,000 which is anticipated to take place on 5 August 2021 around 03:00 PM (GMT+7) according to Ethereum block countdown:



  1. The schedule is subjected to change based on the average duration of the new block creation on the Ethereum network. Bitkub will keep providing the most updated information.
  2. Any transactions that are not completely processed on blockchain before the system shutdown will be processed when the system is back in service. Be assured that your asset will remain safe under our care. However, it is suggested that making transactions during the maintenance period should be avoided to prevent any unexpected errors.


*List of affected tokens

- Ethereum (ETH)

- OmiseGO (OMG)

- USDT (ERC20 and Omni Layer)

- Status Network (SNT)

- Civic (CVC)

- ChainLink Token (LINK)

- 0x (ZRX)

- Kyber Network (KNC)

- Raiden Network Token (RDN)

- Arcblock (ABT)

- Decentraland (MANA)

- JFIN Coin (JFIN)

- Everex (EVX)

- Power Ledger (POW)

- Dai Stablecoin (DAI)

- USD Coin (USDC)

- Basic Attention Token (BAT)

- Golem Network Token (GLM)

- Yearn Finance (YFI)

- Uniswap (UNI)

- Aave (AAVE)

- Compound (COMP)

- Maker (MKR)

- Alpha Finance Lab (ALPHA)

- Enjin Coin (ENJ)

- Balancer (BAL)

- Curve DAO Token (CRV)


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