The series 1 contractor prepared specification Requirement, and SIL Safety HAZOP completed and passed inspection from PTT to pay 10% of the project value promised .
1st Contractors prepare HAZOP, SIL and Safety Requirement specification completed and passed inspection from PTT. paid 10% of the total value of the contract.
Installment plan 1 contractors, and HAZOP SIL Safety Requirement specification completed and passed the inspection of oil pay 10 % of the value construction .