eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-01-23 12 3 2757 2762 10.13005/bbra/1958 4171 article Reyhaneh Toudeh Bahambari 1 Hamidreza Rezaee Kelidbari 2 Management,( International Business), Rasht Branch Islamic Azad University, Rasht,Iran Department Of Management, Rasht Branch, Islamic Azad University ,Rasht ,Iran Companies Have To Improve Their Procedures In Order To Have An Increase In Their Performances. One The Most Important And Most Costly Activities In Companies Which Causes A Great Deal Of Official Expenses For The Companies Is Procurement Procedure. Therefore, The Aim Of This Study Was To Investigate The Role Of E Procurement Via Supply Chain Integration On The Performance Of Supply Chain. The Current Study Was Done On SAPCO Car Parts Production Companies Which Have Grade A In Their Products. This Study Is A Descriptive-Correlational Study.  The Sample Under Investigation Have Been Selected Through Non-Random Sampling. The Data Gathered In This Study Via Chang Et Al (2013) Questionnaire.  In Order To Test The Hypothesis, Structural Equation Modeling Has Been Used. The Result Of This Research Showed That E Procurement Has An Effective Role In Improvement Of Performance Of Supply Chains Under Investigation. https://www.biotech-asia.org/vol12no3/the-effect-of-electronic-procurement-on-the-performance-of-car-parts-supply-chain-companies-2/ Electronic Procurement; Supply Chain Performance; Supply Chain Integration