about us

Thai Summit Harness has grown into a leader in the manufacturing business Car wiring harness (Wiring Harness) For over 30 years, we have prided ourselves on meeting and exceeding our customers' expectations. By producing quality products efficiently at a competitive price With on-time delivery and continuous customer support.

Our quality management system is comprehensively documented in our quality manuals and process documents. Our production facilities are accredited. IATF 16949 which is a quality standard for the automotive industry. In addition, it has passed quality assessments and received many awards from both customers and government agencies. It is also a testament to the success of our commitment to quality.

The company prides itself on delivering high quality products at competitive prices. along with providing close customer service and support which is a highlight that is superior to competitors in the industry

Company information

1. Founded: October 18, 1979
2. Registered capital: 290 million baht
3. Sales in 2025: 4,250 million baht
4. Company President: Mr. Sakulthorn Juangroongruangkit
5. Number of employees: 2,200 people
6. Total area: 24,368 square meters

product

1. Car wiring harness (Wire Harness)
2. Automotive Cable
3. Complete battery cable assembly (Battery Cable Assembly)
4. High-voltage wire (High Tension Cord)

Company history (History)

1. 1979 TSH Company began operations as a division of Thai Summit Autoparts Industry Company Limited.
2. 1989 Established the first factory Thai Harness (Bang Phli)
3. 1991 Started technical cooperation with the company. MCI and Ryosei Electro Circuit, Japan
4. 1994 Established the 2nd factory Thai Summit Harness (Laem Chabang)
5. 1999 Certified quality management system ISO 9002 and QS 9000
6. 2002 Certified environmental management system ISO 14001
7. 2004 Move factory Thai Harness Let's gather at Thai Summit Harness Laem Chabang
8. 2005 Certified quality management system ISO/TS 16949
9. 2005 Established a new joint venture company with MCI and Ryosei Electro Circuit, Japan
10. 2011 Establish a branch Thai Summit Harness Japan Branch At the city Shin-Anjo (Shin-Anjo) Japan To support and serve customers closely
11. 2016 Establish a company Thai Summit Harness Indonesia (TSHI) At the industrial estate KIIC Karawang City, West Java Province Indonesia
12. 2017 won TPM Excellence Category A Award from JIPM (Japan Institute of Plant Maintenance)
13. 2019 won TPM Award for Excellence in Consistent TPM Commitment from JIPM

Summary of the company's development

Throughout more than 40 years, Thai Summit Harness has continuously developed from within the Thai Summit Group. To become a leading manufacturer of electrical wiring harnesses for the automotive industry. By expanding production bases in Thailand, Japan and Indonesia. Ready to continuously raise standards in quality, environment and production efficiency until receiving international standard certification and international awards.