Notice of Amendment to U.S. Stock Trading Fee Rate

Dear Valued Client,

Thank you for choosing the services of Changjiang Securities (HK) Brokerage Limited.

According to the press release issued by the U.S. Securities and Exchange Commission (“SEC”), the U.S. stock trading fee rate will be adjusted with effect from 4 April 2026 (settle date), as below:

Adjusted Item

Current Transaction Fee Rate

Adjusted Transaction Fee Rate

U.S. Stock Trading Fee Rate 
(For sell order only)

0%

0.00206 %

Per the announcement, 0% Transaction Fee Rate will apply on settle dates through Friday, April 3, 2026, and 0.00206 % Transaction Fee Rate on settle dates on or after Saturday, April 4, 2026. For our clients, due to the Easter holiday, the relevant dates are as follows:

Effective dates:

Trade Date: Thursday, April 2, 2026

Settle Date: Monday, April 6, 2026

We hereby inform you that our trading fee rate for the U.S. stock will be adjusted in accordance with the aforesaid announcement. For the latest fee rates, please visit our company’s official website from time to time:

https://www.cjsc.com.hk/en/securities

For more details, please visit:

SEC's official website

https://www.sec.gov/rules-regulations/fee-rate-advisories/2026-2

Should you have any queries, please contact Customer Service Department at tel: (852) 2823-0388 or mainland toll-free hotline: 400-859-5579 for assistance.

Yours faithfully,

Changjiang Securities Brokerage (HK) Limited

20 March, 2026