Three New Securities Approved for CCASS Clearing

The following securities have been approved for admission into CCASS for clearing, settlement, withdrawals and deposits. With effect from their respective listing dates, the Exchange trades of the said securities will be cleared inside CCASS and automatically settled on a Continuous Net Settlement (CNS) basis unless they are isolated from the CNS System by the counterparty Exchange Participants at the time of trade or isolated from the CNS System by HKSCC, in which case such trades will be settled on a trade-for-trade (TFT) basis.

Effective 香 港 中央結算有限 公司 Effective Date for Date for Clearing Settlement 1. Shanghai Xizhi Technology Co., 27/04/202628/04/20262. Mabwell (Shanghai) Bioscience 27/04/202628/04/20263. Shanghai Sunmi Technology Co., 28/04/202629/04/2026 (香港交易及結算所有限公司全資附屬公司) Note 1 Note 2 Note 1 Note 2 Note 1 Note 2通告 CIRCULAR (SI) and (Exchange trades) Ltd. Co., Ltd. Ltd. 編號 HONG KONG SECURITIES CLEARING COMPANY LIMITED 日期 Subject: Stock Admission - New Listing of Securities Enquiry: CCASS Hotline : 2979 7111/ E-mail : clearingps@hkex.com.hk 24/04/2026 PT/NIS/CCASS/126/2026 Ref. Date: I. Ordinary Shares Stock Name Withdrawals and Deposits Board Lot Stock Code (A wholly-owned subsidiary of Hong Kong Exchanges and Clearing Limited) No.:

All CCASS services are subject to the General Rules of HKSCC and HKSCC Operational Procedures.

Effective 1. AI Energy Engineering Holdings 27/04/202628/04/202610,000 2936 Note 1 Note 2 Effective Date for Ministry of Finance of the People's 27/04/2026 27/04/2026 Limited 2. WLS Holdings Limited 28/04/202629/04/202610,000 5,000 89021 Note 1 Note 2 Note 2 Date for Clearing Settlement Republic of China - Provisional Allotment Letters - Provisional Allotment Letters

1. Provisional Allotment Letters (SI) and (Exchange trades) - 2.08% Fifteen-Year RMB relating to Nil-paid Rights relating to Nil-paid Rights
2. Debt Securitiesrelating to Nil-paid Rights Stock Name Withdrawals and Deposits Bonds due 24.04.2041 Board Lot Stock Code Note 2 Note 3 Stanley Ng Vice President Post Trade Operations Division

Notes:

1. The clearing admission date has been set prior to the listing date so as to allow participants to input Settlement Instructions
   (SI) to effect portfolio movement among themselves, if required.

2. Tentative listing date of the securities on The Stock Exchange of Hong Kong Limited (the "Exchange").

3. The debt securities are issued in scripless form, there will be no physical deposit and withdrawal services provided by Hong
   Kong Securities Clearing Company Limited. The debt securities will be traded on the Exchange at a clean price, meaning that the trade price is exclusive of accrued interest. Please refer to the Frequently Asked Questions under the section of Debt Securities available on the HKEx website (url: http://www.hkex.com.hk/eng/global/faq/debt.htm) for more details.