Hong Kong Exchanges and Clearing Limited ("HKEX") has announced its refined tick size spread for securities trading, which will take effect fromAugust 4, 2025 (“Effective Date”).

Spread Table Changes:

To ensure the smooth execution of your trades, please be advised that with effect fromAugust 4, 2025, price inputs of trading orders for all affected products, including Equities, Real Estate Investment Trusts(REITs), Equity Warrants, and all other Applicable Securities, must comply with HKEX's latest tick size requirements. Any orders that do not comply with these new requirements will be rejected.

We recommend that you refer to the official HKEX website for detailed information regarding the updated tick sizes to ensure your trading operations are in compliance with the latest regulations.

Should there be any question, please contact your Relationship Manager or Customer Service Hotline at (852) 2718 9666.

BOCI Securities Limited

31 Jul 2025