This document is an internship report submitted by Nguyen Minh Duc to his supervisor Nguyen Thi Hong Thuy, PhD. The report provides an overview of Vietnam Air Petrol Company Limited (VINAPCO), where Duc completed his internship. It discusses the company's establishment in 1993, development over 20+ years, business activities in fuel supply and trading, management structure, financial position, and accounting department and systems. The report aims to share Duc's experience and lessons learned during his internship at VINAPCO.