Charoong Thai Wire & Cable PLC. manufactures and distributes high-quality
aluminum / copper conductor cables and optical cables

under the CTW brand, reaching both the government and private sector. With our vision to stay at the top of the competitive cable industry in Thailand, we continue to initiate new innovations at our manufacturing plants in order to develop product details and quality to match international specifications, along with supporting and satisfying demands.

Business Factor

CTW Group offers expertise in manufacturing aluminum/copper conductor cables, low-voltage power cables, high-voltage power cables, telecommunication cables and fiber optic cables, besides designing and manufacturing custom OEM products for Thailand and the global market. Our strong business partnership is what influences our successin the cable industry.
1. Siam Pacific Electric Wire & Cable Co., Ltd. (SPEWC)
2. Siam Fiber Optics Co., Ltd. (SFO)
3. DD Cable Co., Ltd. (DDC)
4. Shanghai Asia Pacific Electronic Co., Ltd. (SAP)



Over the years, the Company has continually developed its operation including production system, quality control and personnel development. Through determination to deliver the best to its customer,
the Company has been granted with various standard accreditations both domestic and international level.

The overview of the Company's background since tis establishment is presented in timeline display below.



1st Decade : Foundation Period


  • 1967

    Founded factory in Phrapadaeng District, Samutprakarn Province with authorized capital 10 million baht.
  • 1968

    Started manufacturing electric wire and aluminum cables and sold them to Electricity Authority nationwide.
  • 1970

    Expanded its business to cover copper casting and rolling and produce copper cables to meet the market need.
  • 1975

    Started acquiring standard mark for industrial product, electric wire category both for aluminum and copper wire from the Thai Industrial Standard Institute (TISI), Ministry of Insudtry.
  • 1976

    First listed in the Stock Exchange of Thailand.


2nd Decade : Expansion Stage


  • 1978

    Increased its authorized capital to 42 million baht to expand its production lines to cover telephone cable and started installing the machine for producing telephone cable.
  • 1979

    Started exporting cable products to Indonesia, Singapore and the Philippines.
  • 1983

    Installed new machine for producing complete product range of Telephone cable.
  • 1985

    Produce all kinds of telephone cables used in Thailand and acquired industrial product certification from TISI.
  • 1987

    Expanded production lines to cover electronic cables and obtained product certification for flexible cord from UL,USA


3rd Decade : Standardization Stage


  • 1988

    Increased its authorized capital from 42 million baht to 100 million baht.
  • 1990

    Constructed new factory on 140 Rai, land located at suwinthawong road, Saladaeng sub-district, Bangnumpriew district, Chachoengsao.
  • 1992

    Officially started the new factory and started research and production trial of fire resistant cables.
  • 1994

    Transformed to public company under name "Charoong Thai Wire & Cable Public Company Limited" with its trademark "CTW"
  • 1996

    Accredited with standard for quality management system according to ISO:9001
  • 1997

    Jointly invested to set up Siam Fiber Optics with authorized capital 160 million baht to product optical fiber cables.


4th Decade : Development Stage


  • 1998

    Developed and manufactured

    High voltage power cable 69 kV

  • 1999

    Developed and manufactured

    High voltage power cable 115 kV

  • 2002

    Increased its authorized capital to 1,999.29 million baht.
  • 2003

    -Developed and successfully manufactured fire resistant cables.
    -Accredited for standard of quality management system under ISO 9001:2000
  • 2013

    Acquired standard certification for environmental management, ISO 14001
  • 2018

    Acquired standard certification for Occupational Health and Safety Management Systems, ISO 18001 and ISO 45001
  • 2020

    Developed and manufactured

    High voltage power cable 230 kV

Company Presentation