Procurement authority will determine the type and extent of control over the production and procurement thaphan considering the impact of the.Purchasing products which affect the production process of the enterprise.
Purchasing agency To determine the type and extent of control vendors. And produce a product purchased. By considering the impact of the product. The procurement process, which affects the productivity of the organization.
Purchasing agency. Determines the type and extent of control vendors and coal production products purchasing, by considering the effects of products. Purchasing, which affects the process of enterprise .