Dear OSL Clients,

Effective June 11, 2026, at 08:00 (UTC+8), OSL HK will implement 0% maker and taker fees for all stablecoin spot trading pairs on Pro Trade.

Eligible Spot Trading Pairs

Note

1. The above fee adjustments will take effect on June 11, 2026, at 08:00 (UTC+8). Any further updates will be announced separately.

2. Eligible users: All KYC-verified OSL HK professional investor accounts.

3. This update applies to all stablecoin pairs listed above. Any stablecoin pairs added in the future will be automatically included.

4. OSL reserves the right to adjust trading fees at any time. Advance notice of any such changes will be provided via official announcement.

OSL Digital Securities Limited

2026-06-11

Disclaimer

This content is provided by OSL Digital Securities Limited (“OSLDS”) solely for informational purposes and does not constitute, nor shall it be construed as, an offer, solicitation, or recommendation to purchase, sell, or subscribe to any securities, financial instruments, products, or services. This content does not constitute legal, tax, accounting, or financial advice, and recipients are advised to obtain independent professional advice prior to making any decisions or taking any action.

OSLDS makes no representations or warranties, express or implied, as to the accuracy, completeness, or reliability of the information contained herein and disclaims all liability for any losses or damages arising from its use. Where third-party data or information is referenced, OSLDS makes no representation or endorsement as to the accuracy, completeness, or reliability of such data. All opinions, estimates, and information are as of the date hereof and may be subject to change without notice.

For the avoidance of doubt, this announcement is strictly intended for Professional Investors (as defined under the Securities and Futures Ordinance (Cap. 571) and its subsidiary legislation) and is not intended for distribution to, or use by, any person in any jurisdiction where such distribution or use would be contrary to applicable laws or regulations. This material does not constitute active marketing to the public in Hong Kong. It is the responsibility of any person who accesses this announcement to observe all applicable laws and regulations of their relevant jurisdiction. Virtual assets involve significant risks. Please ensure you fully understand these risks before engaging in any trading activities. OSLDS shall not be liable for any losses arising from the use of or reliance on this announcement.

The products referenced in this document may constitute Specified Stablecoins under the Stablecoin Ordinance (Cap. 656) ("Stablecoin Ordinance"). However, the issuers of the relevant products and OSLDS are not licensed under the Stablecoin Ordinance to conduct Regulated Stablecoin Activities in Hong Kong. OSLDS is a Permitted Offeror under the Stablecoin Ordinance, and OSLDS only offers such products and services in Hong Kong to clients who have been verified and accepted by OSLDS as professional investors.

About OSL Hong Kong

As a subsidiary of the publicly listed OSL Group (HKEX: 863.HK), OSL Digital Securities Limited ("OSL Hong Kong") is Hong Kong’s first SFC-licensed and insured digital asset platform. Operating since 2018, the platform provides institutional-grade digital asset services to corporations, financial institutions, professional investors and retail investors.

OSL Hong Kong delivers services across five core domains: OTC brokerage, Omnibus broker solutions, custody, wealth management, and exchange services. The OTC brokerage services provide 24/7 high-liquidity crypto trading with fiat on/off-ramp services. Custody solutions feature segregated client-asset wallet management backed by an aggregate insurance coverage of up to US$1 billion. The wealth management suite offers crypto investments to traditional investors, including tokenised treasuries, RWAs, structured crypto products, and quant investment strategies.OSL Group is developing wealth management solutions, including tokenised treasuries, Real-World Assets (RWAs), structured crypto products, and quant investment strategies.

As a pioneer in bridging traditional finance and the digital asset economy, OSL Group adheres to its core principles: Open, Secure, and Licensed, empowering the next generation of global financial infrastructure. In addition to Hong Kong, OSL Group expands operations under full regulatory compliance in Japan, Australia, Europe and beyond.