Over 23 years of wiring harness manufacturing — Thai-owned, Japanese OEM disciplined, and built for customers in Europe, the USA and Australia.
S.P. AUTO is a specialist manufacturer of wiring harnesses, working to the Japanese OEM production standards trusted by leading global automotive brands including Toyota, Honda and Isuzu. We operate three major production plants and one headquarters, supporting requirements that range from automotive and agricultural machinery to batteries, home appliances, medical devices and medical robotics.
Our strategy centres on flexibility — a High Mix, Low Volume capability paired with genuine mass production capacity. That combination lets us support a customer from first prototype through to full series production without changing supplier.
Years of experience
Production plants
Headquarters
Export regions
International certification is the baseline our customers work from — and the reason procurement teams can shortlist us with confidence.
The automotive industry quality management standard, covering defect prevention and continuous improvement across the supply chain.
Internationally recognised quality management systems certification.
Production disciplines aligned to the Japanese OEM standards our customers require.
Three companies across four sites in Khon Kaen and Maha Sarakham — one group, one quality system.
