Sinoma Science & Technology Co., Ltd.

Sinoma Science & Technology Co., Ltd. is a China-based advanced materials conglomerate and a flagship listed subsidiary of China National Building Material Group (CNBM), the world's largest building materials enterprise. Founded in 2001 and headquartered in Nanjing, Jiangsu Province, the company is the world's largest wind turbine blade manufacturer and a leading producer of fiberglass composites, lithium battery separators, and high-pressure composite cylinders. With approximately 20,000 employees and annual revenues exceeding ¥30 billion, Sinoma Science is publicly listed on the Shenzhen Stock Exchange (002080) and ranks among China's Top 500 Manufacturing Enterprises.

Core Business

Sinoma Science operates across four primary business segments unified by advanced materials science and composite manufacturing expertise. The Wind Turbine Blade division is the world's largest by production capacity, manufacturing blades exceeding 100 meters in length for onshore and offshore applications from 1.5 MW to 16+ MW turbine classes, incorporating proprietary carbon fiber pultrusion spar cap technology, advanced aerodynamic features including vortex generators and serrated trailing edges, and erosion-resistant leading edge protection systems. The Fiberglass & Composite Materials segment encompasses full-spectrum glass fiber products — direct rovings, assembled rovings, chopped strands, woven fabrics, and high-modulus grades for aerospace and defense — alongside thermoplastic composite prepregs, FRP structural profiles, and glass fiber filter media for high-temperature industrial filtration, serving construction, transportation, infrastructure, and environmental protection industries.

The Lithium Battery Separator division has emerged as a strategic growth engine, with annual wet-process UHMWPE separator production capacity exceeding 2 billion square meters and supplying tier-one EV battery manufacturers including CATL and BYD. The company's multi-layer co-extrusion separators feature ceramic (alumina/boehmite) coatings engineered for thermal stability and safety in high-energy-density NCM and LFP cells, with next-generation development focused on solid-state battery compatibility. The High-Pressure Composite Cylinders segment produces Type III and Type IV fully-wrapped composite cylinders for CNG vehicles (250 bar), hydrogen fuel cell vehicles and refueling stations (350-700 bar), breathing apparatus, and aerospace applications, positioning Sinoma Science at the center of China's hydrogen energy infrastructure buildout.

Global Presence

Sinoma Science maintains an extensive manufacturing network concentrated in China with strategic international expansion underway. Wind blade production bases are distributed across Jiangsu, Gansu, Jilin, Inner Mongolia, and other key provinces, with planned capacity expansion in offshore wind hubs including Guangdong and Fujian. Fiberglass manufacturing is centered in Taian (Shandong) with annual capacity exceeding 1 million tonnes, supported by dedicated glass fiber R&D centers. Lithium battery separator production is concentrated in Nanjing and Tengzhou, with new capacity additions in progress to meet surging domestic and export demand. Composite cylinder manufacturing operates from specialized facilities in Suzhou, with the company actively establishing hydrogen infrastructure partnerships in markets including Southeast Asia, the Middle East, and Europe. International sales offices and technical support teams serve wind energy and composite materials customers in over 30 countries, with particular strength in emerging market wind farm development.

Key Strengths

Sinoma Science's competitive moat rests on three pillars: unmatched manufacturing scale in wind turbine blades (world's largest), diversified advanced materials portfolio spanning wind energy, EVs, and hydrogen — three of the fastest-growing global industrial megatrends — and the strategic backing of parent CNBM, which provides access to capital, raw materials, and government relationships at a scale few competitors can match. The lithium battery separator business has demonstrated exceptional growth, capturing approximately 25% market share in China's domestic wet-process separator market and positioning the company as a critical supplier in the global EV battery supply chain. The company's 2025 R&D expenditure exceeded 5% of revenue, supporting an active patent portfolio exceeding 1,500 active patents with particular density in blade aerodynamics, separator coating technology, and composite cylinder manufacturing processes. VerityRank Score of 85/100.

Data Sources

Key data points verified against: Sinoma Science & Technology 2024 Annual Report (Shenzhen Stock Exchange filing); CNBM Group 2024 Annual Results; China Wind Energy Association (CWEA) 2024 Wind Turbine Blade Market Report; company investor presentations and Shenzhen Stock Exchange disclosures; third-party market analysis from BloombergNEF and Wood Mackenzie on lithium battery separator and wind turbine blade markets.