tBTC is Now Available on Sui – Bringing $500M in Bitcoin Liquidity to the Fastest Chain in DeFi

Sui, the only blockchain built for mass adoption, is pleased to share yet another momentous access point for Bitcoin holders looking for efficient access to DeFi on Sui. Today, Threshold Network announces that tBTC, a decentralized and trust-minimized asset that allows Bitcoin holders to experience best-in-class access to BTCfi, is now available on Sui. 

Merging Bitcoin’s foundational ethos with Sui’s high-speed, composable environment will unlock a new chapter for decentralized finance.  This collaboration will bring more than $500 million in BTC liquidity to the Sui ecosystem, via direct minting of tBTC to the network, giving users the ability to enable efficient capital use of their Bitcoin through DeFi protocols that offer instant settlement and extremely low fees. With this integration, Threshold’s tBTC will be fully usable across Sui, powering trading, lending, borrowing, and yield strategies.

Threshold Network is the team behind tBTC, a protocol designed to preserve Bitcoin’s trust-minimized security model while enabling utility in decentralized finance. By launching on Sui, Threshold will expand tBTC’s reach to a high-performance blockchain with 400ms finality and a rapidly expanding suite of Bitcoin DeFi offerings. The integration will initially activate Bitcoin liquidity across four Sui-native protocols: Bluefin, Bucket, AlphaLend, and AlphaFi.

Additionally, Sui will be the first non-EVM chain to support direct minting of tBTC on the Threshold app, thereby expanding accessibility and reinforcing its position as a premier destination for Bitcoin liquidity. Users will be able to trade select tBTC pairs on Bluefin, lend and borrow on AlphaLend, place tBTC as a collateral on Bucket, and access leveraged, risk-adjusted DeFi strategies through AlphaFi’s auto-looping vaults. All of this happens within Sui’s lightning-fast, secure, and composable network.

“tBTC is expected to bring a massive amount of Bitcoin liquidity to Sui, creating a bridge that truly matters—not just for institutions but for everyday people who love Bitcoin,” said Adeniyi Abiodun, Co-Founder and Chief Product Officer at Mysten Labs, the original contributors to Sui. “This new integration opens another door to accessible, sovereign BTCfi participation.”

BTCfi on Sui Continues to Grow

Bitcoin DeFi on Sui has evolved from an intriguing concept to a proven ecosystem with clear product-market fit. In a matter of months, Sui has become one of the most robust destinations for BTCfi activity, offering secure, composable, and high-performance tools for Bitcoin holders to interact with DeFi. This impending addition of tBTC further strengthens this momentum, bringing more depth and diversity to a rapidly maturing ecosystem.

Bitcoin holders will now have more options than ever to use their assets efficiently on Sui. Since February, nearly 600 BTC have been bridged into the ecosystem, and BTC-backed assets now make up over 10% of Sui’s total value locked (TVL). That number is growing fast as users embrace a range of BTCfi products offering unique integrations, custody models, and DeFi opportunities.

Sui’s object-centric model and parallel execution make it ideal for building fast, secure, and deeply integrated financial applications. With support for over 297,000 transactions per second and consistent sub-second finality, Sui offers the infrastructure needed to turn Bitcoin from passive capital into an active player in DeFi.

“Bitcoin was designed to be used, not locked away,” said Callan “Sap” Sarre, Co-founder at Threshold Labs. “With tBTC coming soon on Sui, we’re combining the security of threshold cryptography with a high-throughput network to create a new standard for Bitcoin utility.”

The world’s most valuable digital asset will soon flow freely – thanks to Sui.