Sigenergy Technology Co., Ltd. has launched its Hong Kong Main Board listing plan, unveiling a Global Offering of 13.57 million H shares at HK$324.20 each. The transaction is expected to generate gross proceeds of approximately HK$4.40 billion before expenses and any exercise of the over-allotment option.

Offering structure • Hong Kong Public Offering: 1.36 million H shares (10% of the deal, subject to reallocation). • International Offering: 12.22 million H shares (90%, subject to reallocation and a 15% over-allotment option). • Over-allotment option: up to 2.04 million additional H shares, which could lift total proceeds by a further HK$0.66 billion, taking the maximum potential fundraising to roughly HK$5.06 billion.

Key terms and timetable • Offer price: HK$324.20 per H share; investors will also pay brokerage of 1.00%, SFC levy of 0.0027%, AFRC levy of 0.00015% and Stock Exchange trading fee of 0.00565%. • Nominal value: RMB0.10 per H share; board lot size: 100 shares. • Public subscription opens: 9:00 a.m., 8 April 2026, and closes 12:00 p.m., 13 April 2026. • Pricing results and allocation announcement: on or before 11:00 p.m., 15 April 2026. • Expected listing and first day of trading: 9:00 a.m., 16 April 2026, under stock code 6656.

Stabilisation and settlement CLSA Limited acts as Stabilisation Manager and, on behalf of the underwriters, may carry out stabilising transactions for up to 30 days after the close of the Hong Kong Public Offering (until 13 May 2026). H shares will be admitted to CCASS for clearing and settlement from the listing date.

Application mechanics The Hong Kong Public Offering adopts a fully electronic subscription process via the HK eIPO White Form platform (www.hkeipo.hk) or through the HKSCC EIPO channel. Minimum application size is 100 H shares, requiring HK$32,746.96 per board lot, inclusive of related transaction levies and fees.

Governance and management Sigenergy Technology is a joint-stock company incorporated in the PRC. The board is chaired by Executive Director and CEO Mr. Xu Yingtong, with eight directors comprising executive, non-executive and proposed independent non-executive members.

Completion of the Global Offering is subject to customary conditions, including the granting of listing approval by the Hong Kong Stock Exchange and the absence of termination events under the underwriting agreements.