# Cross-Chain Bridge ## Instruction Themis will be deployed on Ethereum but also uses a third-party cross-chain bridge. Using the cross-chain bridge service allows you to use TMS tokens outside of Ethereum. Before using cross-link bridges, you need to be aware of the following risks: * ERC20 assets will be held by a third party once they enter the cross-chain bridge. If the third-party generates a loss resulting in the assets not being able to cross back to Ethereum, you may be compensated by the third party, but the TMS on Ethereum may not be recoverable. * Before using the cross-chain bridge, try to make a small transfer. Test and confirm if the contract address of the assets is the officially published contract address. ## Cooperative Cross-Chain Bridge ### Chain Port Official website：