Based on the quality of Japanese manufacturing, We will contribute to industrial growth and social implementation in Thailand and abroad.
Obtained IATF16949 certification and Green Industry (Level 3) certification
PRODUCTS & SERVICES

Electronics Manufacturing Service
We provide EMS (Electronic Manufacturing Service) services for consumer electronics, White goods, car models, and industrial equipment.

Inspection and Pre-Assembly Services
We provide high-resolution inspection services (dimensional and visual) for electronic and automotive components.

Repair and rework of equipment, boards, etc.
After analyzing and identifying the causes of malfunctions and failures of devices and equipment that do not have specifications and schematics, we can repair or replace parts and put them back into use.
Do you have problem with these kinds of troubles?
01

Poor quality
02

Lack of necessary equipment
03

Ack of manufacturing know-how
We will help you to solve with them.

ABOUT US
JOHNAN SIAM CORPORATION LIMITED, a group company of JOHNAN CORPORATION, contributes to solving various problems in manufacturing based on the Japanese manufacturing quality cultivated for many years.