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V&M SERVICE CO., LTD.

UDORN LHMSANTI LT., PART.

SRIMALAIPORN LIMITED PARTNERSHIP

UDORN SRIRUT LIMITED PARTNERSHIP

WADEESIRISAK CONTRACT LIMITED PARTNERSHIP

THOR. TIPCHAROEN LIMITED PARTNERSHIP

PETROL SERVICE AND ENGINEERING LTD., PART.

S.SAWAT PATTANA LIMITED PARTNERSHIP

MING 25 NOH. CONSTRUCTION LIMITED PARTNERSHIP

ANUWAT CIVIL ENGINEERING LIMITED PARTNERSHIP

UDON CONSTRUCTION 2015 LIMITED PARTNERSHIP

BOONTERM SUBCHAROEN LIMITED PARTNERSHIP

SET THA UDORN CONSTRUCTION LTD., PART.