PROFESSIONAL SERVICE UNITED CO., LTD.
PROFESSIONAL VACUUM PARTNERS CO.,LTD.
PT AUTOMATION (THAILAND) CO., LTD.
PTT DIGITAL SOLUTIONS CO., LTD.
QTC ENERGY PUBLIC COMPANY LIMITED
QUALITECH CONTROL CO.,LTD
QUICK ERP COMPANY LIMITED
REFINEMENT MACHINERY CO LTD
RETAIL BUSINESS SERVICES CO., LTD.
