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Ronin Bridge is an app for transferring tokens between the Ethereum and Ronin chains. It is a multi-signature (multi-sig) bridge, which means that multiple bridge operators must approve before a transaction can be executed. Multi-sig improves the security and trustworthiness of cross-chain transactions, and prevents any single party from acting maliciously or making unauthorized changes to the transaction.


Withdrawal limits

The withdrawal process on Ronin Bridge is divided into tiered methods corresponding to the overall value of the transaction.

The following table provides the default setting for tier limits.

Tier 1Less than 100,000Less than 1,000Less than 300,000,000Less than 1,000,000
Tier 2100,0001,000300,000,0001,000,000
Tier 3400,0004,0001,500,000,0002,000,000


  • Tier 1: Requires automated approval by 70% of validators.
  • Tier 2: Requires automated approval by 90% of validators.
  • Tier 3: Requires automated approval by 90% validators and manual approval by reviewers.

For Tier 3 review, a fee (around 0.001%) is charged for unlocking a transaction.

Daily withdrawal limit

We also limit the total withdrawal volume of Tier 1 and Tier 2 withdrawals. The default daily withdrawal limit is set as $50M.


Because Tier 3 withdrawals go through a review by real humans, they're not counted toward the daily withdrawal limit.