Idemitsu Kosan is a Japanese company founded in 1911 by Sazo Idemitsu. It primarily focuses on the production and sale of petroleum products, including gasoline, lubricants, and petrochemicals. The company is known for its commitment to quality and innovation in the energy sector. In addition to its core business, Idemitsu Kosan is involved in renewable energy initiatives and has expanded its operations internationally. The company aims to contribute to sustainable development while meeting the energy needs of consumers and industries worldwide.