What Weihai Guangwei Composites does

Weihai Guangwei Composites (威海光威复合材料股份有限公司) is a Chinese carbon fiber and composite materials manufacturer listed on the Shenzhen Stock Exchange ChiNext Board under stock code 300699 since September 2017, when it became the first A-share listed company in China's carbon fiber industry. Founded in 1992 in Weihai, Shandong as a fishing tackle workshop, the company pivoted to carbon fiber R&D around 2002 and achieved the first domestic private-sector carbon fiber engineering production in 2005. Its portfolio spans polyacrylonitrile (PAN)-based carbon fiber in T300–T1100 strength grades and M40J–M65J modulus grades, high-performance prepregs, finished composite parts (tubes, structural components, sandwich panels), pultruded wind turbine blade carbon beams, and carbon fiber/composite manufacturing equipment including carbonization furnaces, prepreg lines, winding and tape-laying systems, and aerospace tooling.

The company operates a vertically integrated industrial chain from PAN precursor through carbonization, prepregging, and finished composite parts, supported by operating subsidiaries Weihai Tuozhan Fiber (high-performance carbon fiber), Guangwei Precision Machinery (equipment manufacturing), Guangwei Energy New Materials (wind blade beams), Guangwei Composite Technology, and Inner Mongolia Guangwei Carbon Fiber. It is one of only two domestic producers of aerospace-grade MJ-series intermediate modulus carbon fiber alongside the Chinese Academy of Sciences, holds over 600 patents, operates the NDRC-designated Carbon Fiber National Engineering Laboratory, and has contributed to national standards for PAN-based carbon fiber and prepreg materials. A Beijing R&D Center established in 2020 supports resin development, structural design, and testing services.

Revenue is generated through direct B2B enterprise sales and contract-based procurement, with the Aerospace & Defense segment (COMAC C919, AVIC unmanned helicopters, China Shipbuilding Corporation naval applications) as the primary segment and Wind Energy, Marine & Shipbuilding, and Sports & Leisure (carbon fiber fishing gear with over 60% domestic share) as secondary segments. Pricing is not publicly disclosed. Most recently, Guangwei entered a joint venture with Shangong Feiren Aviation Parts in 2026 (25% stake, ¥20 million invested in an ¥80 million-registered-capital entity) to enter the civil aviation and low-altitude economy sector, breaking out of its historical supplier role into downstream parts manufacturing.

Name

Weihai Guangwei Composites

Legal name

威海光威复合材料股份有限公司

Website

https://gwcfc.cn

Company type

Public

Founded year

1992

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Weihai Guangwei Composites is a Chinese carbon fiber and composite materials manufacturer serving aerospace, defense, wind energy, and marine sectors. The company is one of two domestic producers of aerospace-grade MJ-series carbon fiber, supplying COMAC, AVIC, and China Shipbuilding Corporation.

Ownership category

akta.pro rank

Product category

Advanced Composite Materials Manufacturing

NAICS

Artificial and Synthetic Fibers and Filaments Manufacturing (32522), Artificial and Synthetic Fibers and Filaments Manufacturing (325220), Textile Mills (313)

SIC

Broadwoven Fabric Mills, Man Made Fiber & Silk (2221), Textile Mill Products (2200)

akta.pro primary industry

Composite Reinforcement Textiles (Carbon/Glass/Aramid Fabrics & Preforms) (IMAOADAH)

akta.pro secondary industries

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials) (IMAJAKAC), Technical Fabric Mills (Performance/Protective/Medical Substrates) (IMAOABAH)

Keywords

• Carbon fiber manufacturing
• Composite materials
• Aerospace materials
• Wind energy components
• Prepreg production

Headquarters

HQ city

Weihai

HQ country

China

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Operations, Personnel, Infrastructure

Revenue model

1. Carbon Fiber Sales: Sale of raw and intermediate carbon fiber materials to downstream manufacturers and industrial buyers. Revenue is generated through long-term contracts with defense, aerospace, and industrial customers.
2. Carbon Fiber Prepreg Sales: Pre-impregnated carbon fiber materials sold to composite part manufacturers, typically in B2B bulk orders with recurring procurement from established customer relationships.
3. Composite Product Manufacturing: Finished composite structural parts and components for aerospace, aviation, and marine applications. These are custom-manufactured to customer specifications under long-term supply agreements.
4. Wind Turbine Blade Components: Carbon fiber and composite components for wind turbine blades, serving the renewable energy sector through direct supply relationships with wind turbine manufacturers.
5. Precision Equipment Manufacturing: Production and sale of carbon fiber processing and composite manufacturing equipment, contributing additional revenue from industrial machinery sales.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Weihai Guangwei Composites manufactures and sells carbon fiber, carbon fiber prepregs, and finished composite structural parts for aerospace, defense, wind energy, and marine applications. The company operates a vertically integrated industrial chain from polyacrylonitrile (PAN) precursor through carbon fiber and prepreg to finished composite products, and also produces composite manufacturing equipment and provides technical design and testing services.

Product overview

Weihai Guangwei Composites is a carbon fiber and composite materials company with full industrial chain capabilities spanning from raw carbon fiber production through finished composite parts and manufacturing equipment. The product portfolio centers on seven core areas: Carbon Fiber and Fabrics (including T300-T1100 strength grades and M40J-M65J modulus grades), High-Performance Prepreg, Composite Material Products (tubes, structural parts, sandwich panels), Wind Turbine Blade Carbon Beams (pultruded profiles), Machine Tool Equipment Manufacturing (carbonization furnaces, prepreg lines, winding and tape laying equipment, ground support equipment, aerospace tooling), Technical Design Services (resin development, structural design, testing), and Testing & Inspection Services. The company serves aerospace (including AR500, TP500 unmanned aerial platforms), wind energy (blade reinforcement beams), marine (Fujian aircraft carrier, new vessels), rail transit, hydrogen storage, and sports equipment sectors. Key subsidiaries include Weihai Tuozhan Fiber (carbon fiber production), Guangwei Precision Machinery (equipment manufacturing), and Guangwei Energy New Materials (wind blade carbon beams).

Differentiator

Problem solved

Functional benefit

Products and services

• Carbon Fiber and Fabrics (碳纤维及织物) High-performance carbon fiber materials spanning T300 to T1100 strength grades and M40J to M65J modulus grades, plus woven fabrics, serving aerospace, military, and civilian applications.
• High-Performance Prepreg (高性能预浸料) Pre-impregnated composite materials (thermoplastic, hot-melt, and wet prepreg) used as intermediate input for aerospace, wind energy, and automotive structural components.
• Composite Material Products (复合材料制品) Finished composite structural parts including tubes, profiles, structural components, and sandwich panels for aerospace, rail transit, marine, and industrial applications.
• Wind Turbine Blade Carbon Beam (风电叶片碳梁) Pultruded carbon fiber profiles for wind turbine blade reinforcement, enabling longer and more efficient blades. Recognized as a Shandong Province manufacturing single champion product.
• Machine Tool Equipment Manufacturing (母机装备制造) Carbon fiber and composite material production equipment including carbonization furnaces (up to 3000°C graphitization), prepreg lines, fiber winding machines, automated tape laying/fiber placement systems, ground support equipment, and aerospace tooling.
• Technical Design Services (技术设计服务) Resin formula development, special prepreg formulation, composite structural design, strength analysis, forming processes, and testing verification delivered through the Beijing R&D Center for industrial and aerospace customers.
• Testing and Inspection Services (检测检验服务) Comprehensive testing capabilities including chromatography, spectroscopy, X-ray, and mechanical testing for carbon fiber, composites, and polymer materials, serving as the Shandong Province high-performance carbon fiber quality standards laboratory.

Quantifiable outcome

• Over 60% domestic market share in carbon fiber fishing gear application segment
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core, secondary and minor.

• 上工申贝集团 (SG Group)coreStrategic or Co-development PartnerGuangwei holds a 25% equity stake in a joint venture 上工飞人航空器零部件（威海）有限公司 with 上工申贝集团 (registered capital of 80 million RMB). The JV is focused on aviation parts manufacturing, combining Guangwei's carbon fiber and composite materials capabilities with SG Group's precision manufacturing expertise.
• 中国船舶集团第七二五研究所 (CSSC 725 Institute / 中船七二五所)coreStrategic or Co-development PartnerStrategic cooperation framework agreement with the China State Shipbuilding Corporation (CSSC) 725 Institute — a major defense research institute specializing in marine materials and corrosion protection. The partnership targets advanced composite materials for naval and marine applications.
• 东华大学 (Donghua University)coreStrategic or Co-development PartnerJoint laboratory for civil aviation composite materials established with Donghua University, one of China's leading textile engineering and materials science institutions. The collaboration focuses on R&D for aviation-grade composite materials and人才培养.
• 南京航空航天大学 (Nanjing University of Aeronautics and Astronautics, NUAA)secondaryStrategic or Co-development PartnerAcademic research collaboration with NUAA on additive manufacturing and advanced composite materials for aerospace applications. NUAA is China's premier aviation engineering university, providing access to top research talent and aviation-specific expertise.
• 吉林大学 (Jilin University)secondaryStrategic or Co-development PartnerAcademic collaboration with Jilin University for materials science research and talent development in carbon fiber and composite technologies.
• 中国科学院电工研究所 (Chinese Academy of Sciences Institute of Electrical Engineering)secondaryTechnology or IntegrationTechnical cooperation with the CAS Institute of Electrical Engineering for specialized applications of carbon fiber and composite materials in electrical and energy systems.
• 哈尔滨工业大学（威海）HRT车队 (Harbin Institute of Technology Weihai HRT Racing Team)minorGTM or Marketing PartnerSponsorship of the Harbin Institute of Technology's Weihai campus racing team (HRT). Supports student engineering education while building brand awareness among engineering students who may become future employees or customers.

Scale indicators5 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Teijin Limited: Japanese carbon fiber and composites producer (Tenax®) with significant aerospace and automotive exposure. Comparable as a vertically integrated fiber-to-prepreg supplier competing for the same downstream programs.
• SGL Carbon: German carbon and graphite specialist with carbon fiber and composite materials operations serving aerospace, wind, and automotive. Comparable vertically integrated producer competing in similar end markets.
• Mitsubishi Chemical (Carbon Fiber Division): Japanese chemical conglomerate producing PYROFIL™ carbon fibers for aerospace and industrial applications. Competes with Guangwei in high-modulus grades and prepregs.
• Toray Industries: Japanese global leader in PAN-based carbon fiber with dominant aerospace share (e.g., Boeing 787 supply). Direct competitor in aerospace-grade carbon fiber that Guangwei is attempting to displace domestically in China.
• Hexcel Corporation: US-based advanced composites supplier serving commercial aerospace (Airbus, Boeing) with carbon fiber reinforcements and prepregs. Direct global competitor for aerospace-grade materials.

Direct peers

• Zhongfu Shenying: Leading Chinese PAN-based carbon fiber producer (subsidiary of Sinofibers) competing head-to-head with Guangwei across T700/T800 and emerging high-modulus grades for aerospace, wind, and pressure vessel markets.
• Hengshen Co. Chinese carbon fiber and composite materials manufacturer producing PAN-based fibers and prepregs for aerospace, wind, and rail applications, with comparable product breadth to Guangwei.
• Jilin Chemical Fiber: Major Chinese PAN-based carbon fiber producer (T300-T800) and one of Guangwei's principal domestic competitors, also serving wind energy and pressure vessel markets.

Emerging players

• Formosa Plastics (Carbon Fiber): Taiwan-based chemical group with carbon fiber operations. Regional competitor in Asia with overlap in industrial and emerging aerospace applications.
• DowAksa: Turkish-American joint venture producing PAN-based carbon fiber for industrial, energy, and transportation applications. Comparable emerging global producer seeking aerospace qualification.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Weihai Guangwei Composites