Highlights of the Global Offering

• Number of Offer Shares under the Global Offering: 46,620,000 Shares, comprising initially 4,662,000 Hong Kong Offer Shares (subject to reallocation) and 41,958,000 International Offer Shares (subject to reallocation).
• Offer Price: HK$23.30 per Offer Share, plus brokerage fee of 1.0%, SFC transaction levy of 0.0027%, Stock Exchange trading fee of 0.00565% and AFRC transaction levy of 0.00015% (payable in full on application in Hong Kong dollars, subject to refund).
• The Hong Kong Public Offering commences at 9:00 a.m. on Thursday, May 15, 2025 and is expected to close at 12:00 noon (at 11:30 a.m. for White Form eIPO applications) on Tuesday, May 20, 2025 (Hong Kong time).
• Dealings in the Shares on the Stock Exchange are expected to commence at 9:00 a.m. on Friday, May 23, 2025 (Hong Kong time).
• The stock code of the Shares is 2629.
• Shares will be traded in board lots of 100 Shares each.
• China International Capital Corporation Hong Kong Securities Limited and CCB International Capital Limited are the Joint Sponsors, Joint Sponsor-Overall Coordinators, Joint Overall Coordinators, Joint Global Coordinators, Joint Bookrunners and Joint Lead Managers. CMBC Securities Company Limited is the Joint Overall Coordinators, Joint Global Coordinators, Joint Bookrunners and Joint Lead Managers. CMB International Capital Limited, Soochow Securities International Brokerage Limited, Livermore Holdings Limited, BOCOM International Securities Limited and Platinum Broking Company Limited are the Joint Bookrunners and Joint Lead Managers. Waton Securities International Limited, Alpha Win Capital Limited, Imperium International Securities Limited, KINGKEY SECURITIES GROUP LIMITED and Yuen Meta (International) Securities Limited are the Joint Lead Managers.
• Cornerstone Investors: Beijing Xunrui and Evergreen Gate.

Hong Kong, 15 May 2025 – Mirxes Holding Company Limited (the “Company”; Stock code: 2629) announced the details of its global offering (the “Global Offering”) and the proposed listing of its Shares on the Main Board of the Stock Exchange of Hong Kong Limited (the “HKEX”) today.

The Global Offering comprises a total of 46,620,000 Shares, consisting of initially 4,662,000 Hong Kong Offer Shares (subject to reallocation) and 41,958,000 International Offer Shares (subject to reallocation).

The Hong Kong Public Offering commences at 9:00 a.m. on Thursday, May 15, 2025 and is expected to close at 12:00 noon (at 11:30 a.m. for White Form eIPO applications) on Tuesday, May 20, 2025 (Hong Kong time). Dealings in the Shares on the Stock Exchange are expected to commence at 9:00 a.m. on Friday, May 23, 2025 (Hong Kong time). The Shares will be traded in board lots of 100 Shares each.

The Company estimates that the aggregate net proceeds to it from the Global Offering (after deducting underwriting fees and estimated expenses in connection with the Global Offering payable by the Company and at the Offer Price of HK$23.30 per Share) will be approximately HK$880.5 million. The Company currently intends to use the net proceeds from the Global Offering for the following purposes, subject to changes in light of its evolving business needs and changing market conditions:

• approximately HK$449.3 million, being 51.0% of the net proceeds from the Global Offering, is expected to be used primarily for the research and development, regulatory filings and manufacturing and commercialization of the Company’s Core Product, GASTROClear^TM;
• Approximately HK$211.0 million, being 24.0% of the net proceeds from the Global Offering, to fund ongoing and planned R&D to further develop the Company’s pipeline products;
• Approximately HK$132.1 million, being 15.0% of the net proceeds from the Global Offering, to be used for strengthening and integrating the Company’s “end-to-end” capabilities to capture significant commercial potential along the value chain;
• Approximately HK$88.0 million, being 10.0% of the net proceeds from the Global Offering, to be used for the Company’s working capital and other general corporate purposes.

China International Capital Corporation Hong Kong Securities Limited and CCB International Capital Limited are the Joint Sponsors, Joint Sponsor-Overall Coordinators, Joint Overall Coordinators, Joint Global Coordinators, Joint Bookrunners and Joint Lead Managers. CMBC Securities Company Limited is the Joint Overall Coordinators, Joint Global Coordinators, Joint Bookrunners and Joint Lead Managers. CMB International Capital Limited, Soochow Securities International Brokerage Limited, Livermore Holdings Limited, BOCOM International Securities Limited and Platinum Broking Company Limited are the Joint Bookrunners and Joint Lead Managers. Waton Securities International Limited, Alpha Win Capital Limited, Imperium International Securities Limited, KINGKEY SECURITIES GROUP LIMITED and Yuen Meta (International) Securities Limited are the Joint Lead Managers.

Cornerstone Investors: Beijing Xunrui and Evergreen Gate.