Thai Steel Cable

What Thai Steel Cable does

Thai Steel Cable Public Company Limited (TSC) is a Thailand-based manufacturer of automobile and motorcycle control cables and window regulators, founded in 1978 and listed on the Stock Exchange of Thailand under the ticker TSC. The company operates as a B2B Tier-1 supplier to leading automotive OEMs and motorcycle manufacturers both domestically and internationally, producing control cables for throttle, brake, clutch, speedometer, tachometer, and seat lock applications, as well as window regulator assemblies including power slide door and sliding window systems. TSC is structured as a joint venture between Summit Corporation, a prominent Thai automotive parts group, and Hi-Lex Corporation, Japan's largest control cable manufacturer, with technical expertise, manufacturing know-how, and trademark licensing transferred from Hi-Lex since the company's inception.

The company's core technology centers on precision mechanical manufacturing of control cables and window regulators, supported by an in-house testing laboratory certified to ISO/IEC17025 standard and an in-house product design team that enables customization for OEM specifications. TSC also offers a paid laboratory testing service. Revenue is generated through hardware sales across three core product lines (automobile control cables, motorcycle control cables, and window regulators) plus the lab service, distributed via direct OEM supply contracts in Thailand and through both direct exports and indirect exports via OEM customers shipping vehicles to ASEAN, Europe, and South America. FY2025 revenue of 2,517 million THB (approximately $70M USD) with a net profit of 346 million THB reflects a mature, profitable business model anchored in long-standing OEM relationships and quality certifications, complemented by Thailand Sustainability Investment recognition and Green Industry Level 4 certification.

Name

Thai Steel Cable

Legal name

Thai Steel Cable Public Company Limited

Website

https://tscpcl.com

Company type

Public

Founded year

1978

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Thai Steel Cable Public Company Limited (TSC) is a Thailand-based, SET-listed Tier-1 manufacturer of automobile and motorcycle control cables and window regulators, serving major automotive OEMs domestically and internationally as a 1978-established joint venture between Summit Corporation and Japan's Hi-Lex Corporation.

Ownership category

akta.pro rank

Product category

Automotive Parts Manufacturing

NAICS

Motorcycle, Bicycle, and Parts Manufacturing (336991), Motor Vehicle Brake System Manufacturing (336340), Motor Vehicle Transmission and Power Train Parts Manufacturing (33635)

SIC

Motorcycles, Bicycles & Parts (3751), Miscellaneous Transportation Equipment (3790)

akta.pro primary industry

Vehicle Wiring Harnesses & Cable Assemblies Manufacturing (IMACAJAA)

Keywords

• Automotive control cables
• Motorcycle control cables
• Window regulators
• Automotive OEM parts
• Cable manufacturing

Headquarters

HQ city

Chonburi

HQ country

Thailand

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, Infrastructure, Marketing or Sales

Revenue model

1. Automobile Control Cable: Manufacturing and sale of control cables for automobiles, supplying to leading automotive manufacturers domestically and internationally.
2. Motorcycle Control Cable: Manufacturing and sale of control cables for motorcycles, including brake cables, clutch cables, throttle cables, speedometer cables, tachometer cables, and seat lock cables.
3. Window Regulator: Manufacturing and sale of window regulator assemblies for automobiles, including power slide door and sliding window systems.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Thai Steel Cable Public Company Limited manufactures and sells automobile and motorcycle control cables and window regulators for leading automotive and motorcycle OEMs. The company produces brake, clutch, throttle, speedometer, tachometer, and seat lock cables, as well as window regulator assemblies including power slide door and sliding window systems. It also operates an ISO/IEC17025 certified in-house laboratory providing testing services.

Product overview

Thai Steel Cable Public Company Limited is a manufacturer of automobile and motorcycle control cables and window regulators. The company operates as a joint venture between Summit Corporation and Hi-Lex Corporation (Japan). Its product portfolio consists of three core product lines: (1) Automobile Control Cables for various vehicle systems, (2) Motorcycle Control Cables including brake, clutch, throttle, speedometer, tachometer, and seat lock cables, and (3) Window Regulator assemblies for automobiles. The company also provides LAB Service for product testing. All products are supplied to leading automobile and motorcycle manufacturers domestically and internationally.

Differentiator

Problem solved

Functional benefit

Products and services

• Automobile Control Cable Control cables for automobiles controlling various systems including throttle, brake, clutch, and other vehicle operations. Supplied to leading automobile manufacturers domestically and internationally.
• Motorcycle Control Cable Control cables for motorcycles including brake cables, clutch cables, throttle cables, speedometer cables, tachometer cables, and seat lock cables. Supplied to motorcycle manufacturers for original equipment assembly.
• Window Regulator Window regulator assemblies for automobiles, including power slide door and sliding window systems, controlling the movement of vehicle windows.
• LAB Service Laboratory testing service for quality assurance, certified to ISO/IEC17025 standards, provided by TSC's in-house testing laboratory.

Quantifiable outcome

• Regional Supplier Quality Award Finalist 2025 - Body Category from Nissan Motor (Thailand) for third consecutive year
• +2 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Three partnerships are on record, tiered core and supporting.

• Hi-Lex Corporation Inc.coreStrategic or Co-development Partner · 1 January 1978Hi-Lex Corporation Inc. is the largest manufacturer of control cables in Japan and one of the world's major players in control cables. TSC is a joint venture between Summit Corporation and Hi-Lex Corporation. The partnership includes technology transfer, technical assistance in manufacturing, and licensing of Hi-Lex trademarks and brand. This joint venture has been in place since 1978 (BE 2521), making it a 46+ year partnership.
• Summit CorporationcoreStrategic or Co-development Partner · 1 January 1978Summit Corporation is a prominent leader in various businesses especially parts producers for automobile and motorcycle assembly market in Thailand. TSC is a joint venture between Summit Corporation and Hi-Lex Corporation. As a Thai partner, Summit Corporation contributes local market expertise and business connections in the Thai automotive industry.
• King Mongkut's Institute of Technology Ladkrabang (KMUTT)supportingStrategic or Co-development PartnerTSC collaborates with KMUTT for research and development of new products. This partnership generates technological knowledge within Thailand and develops skilled personnel. The company has designed both automobile and motorcycle control cables with quality comparable to Japanese products through this collaboration.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Sumitomo Wiring Systems, Ltd. Major Japanese supplier of automotive wiring harnesses and electrical components. Operates in adjacent cable/harness categories that overlap with TSC's OEM customer base, though focused on electrical rather than mechanical cable assemblies.
• Yazaki Corporation: Global leader in automotive wiring harnesses and electrical distribution systems. Serves the same OEM customers as TSC but focuses on electrical wiring rather than mechanical control cables, making it a broader incumbent in adjacent automotive cable assembly.
• Aisin Seiki Co., Ltd. Major Japanese tier-1 automotive supplier with a broad portfolio including window regulators, door systems, and powertrain components. Siam Aisin is a TSC customer; Aisin overlaps with TSC's window regulator business but operates at much larger scale across a wider product range.

Direct peers

• Kongsberg Automotive ASA: Norwegian automotive supplier specializing in control cables, shifters, and operator controls for passenger vehicles and commercial vehicles. Direct competitor in the mechanical control cable segment with global OEM customer base similar to TSC's.
• Hi-Lex Corporation: Japan's largest control cable manufacturer and TSC's 26.94% JV partner since 1978. Hi-Lex produces the same core products (automotive control cables, window regulators) across global markets, making it the most directly comparable peer in technology, product portfolio, and customer base.
• Fuji Kogyo Co., Ltd. Japanese manufacturer of control cables for automotive and motorcycle applications. Direct competitor in motorcycle and automobile control cables, serving Japanese OEMs similar to TSC's customer base.
• Mitsuba Corporation: Japanese automotive parts manufacturer producing window regulators, wiper systems, and motors. Directly comparable to TSC's window regulator product line and shares Japanese OEM customer relationships, similar tier-2 supplier positioning.
• Dura Automotive Systems: US-based supplier of automotive mechanical and mechatronic systems including window regulators, door hinges, and shift-by-wire systems. Directly comparable to TSC's window regulator business with global OEM relationships.
• Brose Fahrzeugteile GmbH: German tier-1 supplier and global leader in window regulator systems, door modules, and seat adjusters. Competes directly with TSC's window regulator business and serves overlapping European and global OEM customers.
• Teklas Kauçuk AS: Turkish manufacturer specializing in automotive rubber and cable products including control cables, hoses, and antivibration components. Competes in the same automotive control cable segment with tier-1 OEM customers in Europe.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/thai-steel-cable-pcl-tsc-r-

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 Thai Steel Cable