List of Participants

PN ENGINEERING AND CONTRACTOR CO., LTD.

POWER BEND CO., LTD.

PREMIER PRODUCTS PUBLIC CO., LTD.

PSV CREATION CO., LTD.

QUALITAT (THAILAND) CO., LTD.

R.D POWER EQUIPMENT MANUFACTURING CO., LTD.

RIGHT REACTIVATION PUBLIC COMPANY LIMITED

ROJANAPAT ENGINEERING CO., LTD.

RYU TECHNOLOGY CO., LTD.

S2 (THAILAND) CO., LTD.

SAMSON CONTROLS LTD.

SENTINEL SOLUTION (THAILAND) CO., LTD.

SIAM FITTINGS CO., LTD

SIAMPATTANAPONG CO., LTD.

THAI BENKAN CO., LTD.

THAMMASORN ENERGY AND ENVIRONMENTAL MANAGEMENT CO., LTD.

TN GROUP CORPORATION PUBLIC COMPANY LIMITED

TOYOBO (THAILAND) CO., LTD.

TOZEN INDUSTRIAL CO., LTD.

TREE YOKO PART., LTD.

TSURUMI PUMP (THAILAND) CO., LTD.

VEGA INSTRUMENTS CO., LTD.

WATER FIELD ASIA CO., LTD.