The cross-chain transaction platform, backed by Huobi Ventures, iSwap, has added support for three more chains, involving OKExChain, Polygon, and Ethereum to its previous coverage of the BSC and HECO chains. Further, iSwap aims to facilitate users with low transaction fees, fast speed, and lower slippage while completing cross-chain transactions. In addition, to celebrate the launch of these cross-chains, iSwap will host an iSwap trade speed challenge campaign from September.