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CHANCHAI (RUNGRUANG TRANSPORT) LIMITED PARTNERSHIP

NAMNGERN DINTHONG LIMITED PARTNERSHIP

PE PROFESSIONAL SALE COMPANY LIMITED

IQ WATER COMPANY LIMITED

RUNG RUEANG SUP KONLAKARN CO., LTD.

WATER & SAND SIAM COMPANY LIMITED

CHINCHANUT GROUP LIMITED PARTNERSHIP

NARUENARD PANICH LIMITED PARTNERSHIP

KOHYAO UTILITIES Company Limited

POOMRUANGPATTHANAKIJ ENGINEERING COMPANY LIMITED

TRITARN CHONLATARN CO., LTD.

CHANCHAI LINING INTERPLAS LIMITED PARTNERSHIP

PORNKASEAM ENGINEERING CO., LTD.

CHUENCHAIYO CO., LTD.