Hashi has added Cumberland, SwissBorg and Fluid ahead of its global testnet launch in July, expanding the partner lineup for a project described by the Sui Chinese community as native Bitcoin financial infrastructure in the Sui ecosystem. The initiative aims to turn about $1 trillion in idle Bitcoin into productive collateral for on-chain finance, a model that seeks to make dormant holdings usable in decentralized markets. Before the latest additions, Hashi had already worked with more than 20 partners.