Siam Intermagnate Co., Ltd.
ALTA Publishing Company
Linemaker Engineering Co., Ltd.
OPK MARKETING SERVICES (THAILAND) CO., LTD.
TOPACK CO., LTD.
AMO - PACK (ASIA) CO., LTD.
Sabklangthong International Co., Ltd.
BKP PASS CO., LTD.
WORLD KOGYO (THAILAND) CO., LTD.
J.C.P. INDUSTRIAL CO., LTD.
HARN ENGINEERING SOLUTIONS PUBLIC COMPANY LIMITED
M&E FITTING INTER SUPPLY LTD., PART.
Applied Scientific Instruments Co., Ltd.
Premier Tech Systems and Automation Ltd.
Maruto (Thailand) Co., Ltd.