Sygnum Launches Custody, Trading, and Lending Services for Sui Blockchain

Swiss digital asset bank Sygnum is expanding regulated institutional access to the Sui blockchain with a suite of new products, including custody, trading, and lending services for its professional clients.

Key Takeaways:

• Sygnum will offer custody, trading, staking, and SUI-backed Lombard loans to institutional clients.
• All SUI holdings will be kept off the bank’s balance sheet and structured for bankruptcy protection.
• The expansion builds on Sygnum’s July 2025 SUI integration and partnership with the Sui Foundation.

The Zurich- and Singapore-based bank announced Friday it will now provide institutional-grade custody as well as spot and derivatives trading for SUI.

Staking services are set to roll out in the coming weeks, while SUI collateral-backed Lombard loans are scheduled for launch in the fourth quarter.

All SUI holdings will be kept off the bank’s balance sheet and structured to be bankruptcy remote.

The initiative follows Sygnum’s July 2025 integration of SUI into its platform, making it the first Swiss bank to fully support the token.

Partnering with the Sui Foundation, the bank aims to tap demand from banks, asset managers, and high-net-worth individuals seeking secure and regulated access to blockchain ecosystems.

Sui Foundation managing director Christian Thompson said the collaboration strengthens the project’s links to global institutional investors.

Sygnum CEO Mathias Imbach described the bank’s role as operating at the “intersection” of digital assets and traditional finance, enabling clients to engage with new opportunities under a regulated framework.

@fundseurope’s Piyasi Mitra writes about Sygnum’s announcement of SUI support for clients, following its role as banking partner to the @SuiFoundation.

“Sygnum was the first Swiss bank to fully integrate Sui into its regulated platform, completing the rollout in July 2025.… pic.twitter.com/6kHanWg1pp

Sui, created by Mysten Labs, a team of former Meta engineers, uses parallel transaction processing to boost scalability and supports applications in DeFi, payments, real-world asset tokenization, and gaming.

It has also moved early into the BTCfi sector, allowing Bitcoin holders to participate in DeFi without sacrificing security.

Sygnum holds banking and digital asset licenses in Switzerland, Singapore, Abu Dhabi, Luxembourg, and Liechtenstein.

In May, Sygnum added staked SOL to its Lombard loan collateral portfolio for double earning potential on one asset.

The crypto bank said it has added SOL to its portfolio of over 20 tokens as eligible collateral for its Swiss Franc, Euro, Singapore dollar, and US dollar-denominated Lombard loans.

Sygnum’s other Lombard loan collateral portfolio includes major coins like BTC, ETH, POL, and XRP.

Earlier this month, Nasdaq-listed Mill City Ventures III announced plans to raise up to $500 million through a new equity agreement to expand its Sui token treasury.

The announcement came just days after Mill City secured $450 million via the sale of 83 million shares to institutional investors, including Pantera Capital, Electric Capital, ParaFi Capital, and FalconX.

The firm used those funds to purchase 76.2 million SUI tokens valued at $276 million. The remaining capital will support its existing short-term lending operations.

Mill City said it is positioning itself as a specialized SUI treasury, aiming to take advantage of the layer-1 blockchain’s focus on low-latency, scalable infrastructure for AI and gaming applications.

The firm’s new $500 million equity line was arranged with Alliance Global Partners and is intended to further scale its position in SUI.

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