HashKey Joins Stacks as Bitcoin Staking Launch Partner and sBTC Signer

Asia's No. 1 staking provider will participate in the first Stacks Genesis Bond and help secure sBTC, the protocol that moves Bitcoin onto Stacks and back

HONG KONG, September 4, 2026 - HashKey Cloud, the institutional staking and yield infrastructure arm of Hong Kong-listed HashKey Group (HKEX: 3887), and Stacks, the leading Bitcoin layer by BTC deployed, today announced that HashKey Cloud is joining Stacks as a launch partner for self-custodial Bitcoin Staking. HashKey Cloud will participate in the first Stacks Genesis Bond, which launches around September 10, and is joining the signer set that secures sBTC, the protocol that moves Bitcoin between the Bitcoin base layer and the Stacks network.

HashKey Cloud is the largest institutional staking provider in Asia by assets under management, with HKD 29 billion staked across more than 40 blockchain networks and a track record that includes the first ETF staking service built to Hong Kong SFC standards. HashKey Group, which provides digital asset services to 1 billion global users, ranks No. 1 in Asia as a digital asset manager by AUM, as an onshore digital asset exchange by trading volume, and as an on-chain services provider by assets under staking, according to Frost & Sullivan. Its participation puts one of the most established names in Asian digital finance behind Bitcoin Staking at launch.

Muneeb Ali, Founder of Stacks, announced the participation on stage during the "Beyond Holding: The New Era of Bitcoin Yield" panel at the HashKey Cloud × Cactus Custody Yield on Trust event in Hong Kong.

Bitcoin Staking and the Genesis Bond

Bitcoin Staking on Stacks lets Bitcoin holders earn yield paid in BTC while their Bitcoin stays on the Bitcoin blockchain. The BTC is locked on Bitcoin for a fixed term, remains under the holder's own control, and is returned in full when the term ends. Holders do not need to move their Bitcoin to another network or hand it to a third party to earn yield.

Securing sBTC

sBTC is how Bitcoin moves from the base layer into the Stacks network and back. It is a 1:1 Bitcoin-backed protocol secured by a decentralized set of signers who require 70% consensus to approve any deposit or withdrawal, removing the need for a single custodian or bridge operator to hold keys. As a signer, HashKey Cloud brings node operation experience dating to 2018 to the group that approves that movement of Bitcoin, extending its role on Stacks from capital participant in Bitcoin Staking to infrastructure operator securing the network.

"HashKey Cloud brings the largest institutional staking operation in Asia into Bitcoin Staking, and that is exactly the kind of participant the Genesis Bond is built for," said Muneeb Ali, Founder of Stacks. "Institutions want their Bitcoin to earn Bitcoin without giving up custody or moving it off the base layer. HashKey's clients now have a way to do that."

"We're excited to join the Stacks signer network and participate in Bitcoin Staking, supporting the infrastructure that brings greater utility and institutional participation to Bitcoin," said Dr. Xiao Feng, Chairman and CEO of HashKey Group.

The Stacks Genesis Bond is the first Bitcoin Staking term on Stacks. It launches September ~10. HashKey Cloud participates alongside institutional partners including UTXO Management, a subsidiary of public Bitcoin treasury Nakamoto Inc., making the Genesis Bond a public, onchain demonstration of Bitcoin productivity backed by institutional capital.

Stacks is the leading Bitcoin layer by BTC deployed, and Bitcoin Staking is how Bitcoin holders earn a yield on their Bitcoin. Institutions and professional investors interested in the Genesis Bond can learn more at [insert landing page URL].

About Stacks

Stacks is the leading Bitcoin layer by BTC deployed and the rails for Bitcoin-native finance, from payments and capital markets to lending and borrowing. Stacks settles to Bitcoin, so activity on the network becomes as irreversible as Bitcoin transactions once confirmed. Stacks is growing Bitcoin. Visit stacks.co

About HashKey

HashKey Group (HKEX: 3887) provides trustworthy digital asset services to 1 billion global users, operating across trading, asset management, custody, infrastructure, and Web3 technologies. HashKey Cloud, the Group's institutional staking and yield infrastructure arm, has provided node validation services since 2018 across more than 40 networks and is the No. 1 staking provider in Asia by AUM. Visit hashkey.com and hashkey.cloud

Media Contact Shannon Voight PR & Events, Stacks Labs [email protected]

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