University of Shumen "Konstantin Preslavsky"​.

Mitsubishi Corporation is a global integrated business enterprise headquartered in Tokyo, Japan. The company develops and operates businesses across a broad range of industries, including natural gas, industrial materials, petroleum and chemicals, mineral resources, industrial infrastructure, automotive and mobility, food industry, consumer industry, power solutions, and urban development. It combines trading, project development, financing, and operational management through a worldwide network of offices and group companies. Mitsubishi Corporation is one of Japan’s largest general trading companies and is listed on the Tokyo Stock Exchange. The company traces its origins to the Mitsubishi group and serves customers and partners in markets around the world.