The thesis goal – analysis of main difficulties of stocks supply to Lithuanian plants and presentation of possible solutions acording to the experience and practice of supply management in foreign countries. The main goal of stocks supply is to satisfy the needs of engineering by materials supply at the same time getting the greatest economical benefit. In the analytical part of the thesis the author briefly discusses the conception and the goals of stocks supply, analyses the management of materials flow and the control of the main subjects of stocks supply in Lithuanian and foreign countries. There are also described the peculiarities of purchasing in international market. The project part of the work presents the research of main aspects of stocks supply in Lithuanian firms. The author analyses the impact to the stocks prices of Lithuania’s entry to European Union. According to the results of the analysis performed, the author proposes the plan of choosing the most qualified suppliers, practicing the Electronic data interchange, using experience of foreign countries which working in international market. There are also given the possibilities of supply management in E – commerce and the strategy of making of purchasing management teams.