ZetaChain bridged USDC.pol on ZetaChain is a wrapped and bridged version of native USDC held in our Polygon custody address. Users deposit native USDC in our custody address, secured by MPC TSS. The protocol then issues a wrapped version equivalent, ZRC-20 on ZetaChain that be natively withdrawn back to the source chain or used in the ecosystem. Please see link below for liquidity caps and other token information: https://explorer.zetachain.com/liquidity