YSB Inc. — Earnings Release 2025

Jul 31, 2025

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

YSB Inc.

藥師幫股份有限公司

(Incorporated in the Cayman Islands with limited liability)

(Stock Code: 9885)

POSITIVE PROFIT ALERT

This announcement is made by YSB Inc. (the "Company", together with its subsidiaries, the "Group") pursuant to Rule 13.09(2)(a) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited (the "Listing Rules") and the Inside Information Provisions (as defined in the Listing Rules) under Part XIVA of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong).

The board (the "Board") of directors (the "Directors") of the Company wishes to inform its shareholders (the "Shareholders") and potential investors that, based on the preliminary review of the unaudited consolidated management accounts of the Group for the half-year ended 30 June 2025 (the "Reporting Period") and other information currently available to the Board, it is expected that the profit attributable to owners of the Company for the Reporting Period will be no less than RMB70 million, which is more than three times as compared to the profit attributable to owners of the Company of RMB21.8 million for the half-year ended 30 June 2024.

Based on information currently available to the Board, the Board considers that the aforementioned expected increase in the profit of the Group is mainly attributable to the following reasons: (1) leveraging its solid industry-leading position and competitive advantages, the Group has sustained growth in revenue against the market trend; (2) the downstream demand for the Group's own-branded products has remained strong, and the scale of this high-gross-margin business has continued to expand, thereby continuously improving the Group's gross profit margin; and (3) the Group has a robust technological foundation, and through the continuous enhancement of its digital capabilities, it has driven continuous improvements in the operational efficiency of its core Online Marketplace and Self-operation Business.

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As at the date of this announcement, the Company is still in the process of finalizing the half-year results of the Group for the Reporting Period. The information contained in this announcement is only based on the information currently available to the Board and the preliminary review of the unaudited consolidated management accounts of the Group, which have neither been audited or reviewed by the Company's auditor nor reviewed by the Board's audit committee and are subject to finalization and necessary adjustments (if any). As such, the actual results of the Group for the Reporting Period may be different from the disclosure in this announcement. Shareholders and potential investors are advised to read carefully the results announcement of the Company for the Reporting Period, which is expected to be published before the end of August 2025.

Shareholders and potential investors are advised to exercise caution when dealing in the shares of the Company.

By order of the Board

YSB Inc.

Mr. Buzhen Zhang

Chairman and executive Director

Hong Kong, 31 July 2025

As at the date of this announcement, the Board comprises Mr. Buzhen Zhang and Mr. Fei Chen as executive Directors, Mr. Ziyang Zhu as non-executive Director, and Ms. Rong Shao, Mr. Sam Hanhui Sun and Mr. Hongqiang Zhao as independent non-executive Directors.

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