Abstract: According to the concept of Total Cost of Ownership(TOCO),the supplier selection criterion of international procurement can be classified into two levels,namely macro decision-making level and micro decision-making level.In this paper,in order to solve the problem of supplier selection in international procurement,a new quantitative method——TOCO total assessment tool is put forward to accomplish the task of total assessment on the micro decision-making level.It can calculate the direct cost and the indirect cost conveniently and can help to evaluate the performance of candidate suppliers.In this paper,the supplier selection related factors are discussed;the method of using the tool is illustrated in detail.It is shown that scientific usage of the TOCO toal assessment tool can make the decsion-making processes of supplier selection in international procurement transparent,easily calculated,and objective.At the end,a practical case is given to clarify the procedure of using the tool.

Key words: international procurement, supplier selection, supply chain managment, decision-making