Introduction Presently the government procurement of all the countries has accounted for 15% or so of the total GNP in the world. Opened completely, the world trade would develop remarkably featured by wider international competition, more preferential price and more effective use of public expenditure. Introduction Presently the government procurement of all the countries has accounted for 15% or so of the total GNP in the world. Opened completely, the world trade would develop remarkably featured by wider international competition, more preferential price and more effective use of public expenditure.