King’s Stone Holdings Group Limited (King’s Stone) announced that its 80%-owned PRC subsidiary, Shenzhen Hengchenyu Intelligent Technology Co., Ltd., has entered into a limited partnership agreement to invest in Guangzhou Xindong Changqing Investment Partnership (Limited Partnership).

Key Transaction Details • Date: 16 May 2026 • Structure: Limited partnership with a 10-year term • Shenzhen Hengchenyu role: Limited Partner • Capital commitment: RMB10.00 million (≈HK$11.50 million), payable by 20 May 2026 • Post-investment share: 28.09 % of the Partnership’s enlarged capital base

Partnership Capitalisation • Total committed capital after increase: RMB35.60 million (≈HK$40.94 million) – Beijing Zhaoxuan Electric Power (Limited Partner): RMB20.40 million, 57.30 % – Shenzhen Hengchenyu (Limited Partner): RMB10.00 million, 28.09 % – Beijing Guojiao Zhongxing (Limited Partner): RMB5.00 million, 14.05 % – Guangdong Xindong Energy (General & Executive Partner): RMB0.10 million, 0.28 % – Beijing Guojiao Yinghua (General Partner): RMB0.10 million, 0.28 %

Investment Mandate The Partnership will focus on PRC new-energy projects approved unanimously by partners and may expand into ancillary new-energy businesses subject to surplus funds.

Governance & Economics • Guangdong Xindong Energy acts as Executive Partner, overseeing daily operations and receiving an annual executive partner fee of RMB50,000 for up to three years. • Profit distribution: After return of paid-in capital, 70 % of residual income to Limited Partners (pro-rata), 30 % to General Partners. • Loss sharing mirrors paid-in capital proportions; General Partners bear unlimited liability while Limited Partners’ liability is capped at their contributions.

Accounting & Funding King’s Stone will fund the RMB10.00 million commitment from internal resources. Partnership results will not be consolidated into group financial statements under applicable accounting standards.

Regulatory Classification The investment meets the 5%–25% threshold under HKEX Listing Rule 14.07 and is classified as a discloseable transaction, requiring announcement but exempt from circular and shareholder approval.

Strategic Rationale Management cites national policy support and growth prospects in new-energy and energy-storage sectors as drivers for participation, viewing the initiative as aligned with King’s Stone’s strategy to diversify revenue and integrate green technologies with its core construction operations.