China Ruifeng Renewable Energy Holdings Limited (0527.HK) is an investment holding company principally engaged in wind farm operations and energy storage power station operations in the People's Republic of China. The Group, founded in 1994 and headquartered in Wan Chai, Hong Kong, primarily generates electricity through wind turbines via subsidiaries including Hebei Hongsong Wind Power Co., Ltd. with an installed capacity of 398.4 MW in Chengde City, Hebei Province, and Baotou City Yinfeng Huili New Energy Investment Limited with a 49.8 MW Phase 1 project under construction in Baotou City, Inner Mongolia; it manufactures wind turbine blades and components, offers hydrogen energy solutions, provides electrical and mechanical equipment maintenance services, construction services, and sales of mechanical and electrical equipment and petroleum coke; additionally, it operates a 300 MW/1.2 GWh grid-side independent energy storage power station in Chabei Management District, Zhangjiakou City, Hebei Province, which achieved full capacity grid connection on 22 January 2025, supporting electricity market trading and capacity leasing to enhance renewable energy consumption in the Beijing-Tianjin-Hebei region. The company serves local grid companies as key customers, with all revenue generated from PRC operations. Recent developments include the completion of construction advances for the energy storage project starting in September 2024, significant capital commitments of RMB613 million as of 31 December 2024 for property, plant and equipment acquisitions, property, plant and equipment additions of RMB439 million in the six months ended 30 June 2025, extensions of convertible bond maturities to June 2026 by Filled Converge Limited in March 2025 involving RMB415 million principal, bank loan repayment schedule amendments reducing 2025 obligations, ongoing monthly updates as of November 2025 on proposed subscriptions for new shares and convertible bonds under specific mandates with subscribers including Hebei Provincial Expressway Development Co., Ltd. and Atlantis New Hong Kong Equity Fund Limited totaling over HK$1.2 billion equivalent, and a formal equity transfer agreement in May 2025 for a RMB6.75 million acquisition in the solar energy sector.