What Sunway does

Sunway (尚纬股份有限公司, sse:603333) is a Chinese specialty cable manufacturer headquartered in Leshan, Sichuan Province, that designs and manufactures wires and cables for critical infrastructure applications. The company's product portfolio centers on radiation-resistant, halogen-free flame-retardant cables for nuclear power stations (notably third-generation Hualong One), power transmission cables for smart grid and hydropower projects, and flame-retardant cables for urban rail transit, with a smaller military-civilian integration line. It holds a first-mover qualification as one of the first enterprises licensed to design and manufacture Hualong One third-generation nuclear power station cables, and its nuclear facility equipment special cables have been certified under the Tianfu Famous Products program. Its flagship project references include the Fuqing Nuclear Power Plant (a ~100 billion yuan investment), Xi'an Metro, and Uganda's 600MW Karuma Hydropower Station.

The company operates a B2B enterprise sales model selling directly to government agencies, state-owned enterprises, and EPC contractors on large infrastructure projects, with revenue tied to long-cycle, project-based sales. Business units include the core cable business, an Industrial Foundation (产融基金) and an Investment and Acquisition (产投并购) unit, suggesting a strategic intent to combine organic manufacturing with financial and inorganic growth. The company is publicly listed on the Shanghai Stock Exchange (stock code 603333), is classified as a high-end equipment manufacturer, and has maintained a 4A (Good) supplier rating from China Nuclear Power Engineering Co., Ltd. for six consecutive years. Employee count is in the 1,001–5,000 range. Recent financial trajectory shows declining revenue from 2021 through 2025 with operating and net losses emerging in 2025, pointing to margin pressure that the company has not yet visibly offset through new contract announcements or restructuring disclosures in the provided data.

Name

Sunway

Legal name

尚纬股份有限公司

Website

https://sunwayint.com

Company type

Public

Founded year

2003

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Sunway (尚纬股份有限公司, sse:603333) is a Chinese specialty cable manufacturer producing nuclear-grade, smart grid, rail transit, and military-civilian cables for government, state-owned enterprise, and EPC infrastructure projects, with flagship deployments at Fuqing Nuclear Power Plant, Xi'an Metro, and Uganda's Karuma Hydropower Station.

Ownership category

akta.pro rank

Product category

Specialty Wire and Cable Manufacturing

NAICS

Communication and Energy Wire and Cable Manufacturing (33592), Other Communication and Energy Wire Manufacturing (335929)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Power Cables & Conductors (LV/MV cables, flexible cables, bus wire, armored cable) (IMAGAEAC)

akta.pro secondary industries

Overhead Conductors & Transmission Cable (IMADAMAH), Data, Communications & Fiber Optic Cable (IMADAMAD)

Keywords

• Specialty cable manufacturing
• Nuclear power cables
• Smart grid cables
• Rail transit cables
• Radiation-resistant cables

Headquarters

HQ city

Leshan

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Cable Product Sales: Revenue generated from manufacturing and selling specialized cables for nuclear energy, smart grid, rail transit, and military-civilian integration applications. Sales are project-based with long sales cycles tied to infrastructure development.
2. Project Solutions: Turnkey project solutions for major infrastructure including power station cable systems and urban rail transit installations.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Sunway (尚纬股份有限公司) manufactures specialty wires and cables for critical infrastructure applications. Its product portfolio centers on cables for nuclear power stations, smart grid power transmission and distribution, urban/intercity rail transit, and military-civilian integration. The company is among the first batch of enterprises qualified to design and manufacture 'Hualong One' (华龙一号) third-generation nuclear power station cables with radiation-resistant, halogen-free flame-retardant properties and a service life exceeding 60 years.

Product overview

Sunway (尚纬股份有限公司) is a cable manufacturing company offering a unified product portfolio centered on specialty cables, with solutions spanning multiple industry sectors. The core offering is the Cable Core Business (电缆主业), which serves as the foundation. Industry-specific solutions include Nuclear Energy and New Energy (核电新能源), Smart Grid (智能电网), Intercity Rail Transit (轨道交通), and Military and Civilian Integration (军民融合). The company also provides investment and acquisition (产投并购) and industrial foundation (产融基金) services. All products follow a quality process from demand identification through product R&D, installation, and service maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Nuclear Power Station Cables (核电新能源 / Nuclear Energy & New Energy)

Quantifiable outcome

• 60+ years product service life for nuclear power cables
• +1 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Far East Smarter Energy: Chinese wire and cable producer within a broader smart-energy group, selling into power, communications and rail markets — overlapping customer base and product portfolio with Sunway.
• Jiangsu Zhongtian Technology (ZTT): China's largest domestic cable manufacturer covering power transmission, submarine, communication and specialty cables for grid, rail and nuclear customers — directly competes with Sunway in the same Chinese EPC bid pool.
• Shenzhen Wo'er Heat-Shrinkable Material: Chinese specialty cable materials and wire producer supplying nuclear, rail and electronics customers — comparable specialty-cable niche with similar qualification-driven business model.
• Baosheng Science and Technology Innovation: Listed Chinese wire and cable maker focused on power, control and specialty cables for grid, rail transit and industrial users — closely comparable mid-cap domestic competitor.
• Ningbo Orient Wires & Cables: Specialist Chinese cable maker concentrated on land and submarine transmission cables for utilities — comparable exposure to T&D and large-infrastructure cable demand.

Broad incumbents

• LS Cable & System: Korean power and communications cable maker with nuclear, submarine and grid cable divisions — serves as an Asia-based broad incumbent peer for Sunway.
• Nexans: Global cable manufacturer with significant nuclear, power transmission and rail transit exposure — directly comparable in product portfolio but at global rather than national scale.
• Prysmian Group: Global leader in energy and telecom cables, with explicit nuclear and submarine/transmission cable franchises — sets the benchmark for what a scaled specialty-cable company looks like.
• Sumitomo Electric Industries: Diversified Japanese industrial with a substantial wire and cable business including power transmission and specialty cables — comparable on nuclear-grade and T&D cable technology.

Regional players

• Fujian Nanping Sun Cable: Regional Chinese wire and cable producer serving power, construction and industrial customers within China — comparable mid-tier domestic cable competitor with limited international reach.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Sunway