The company also purchases, processes and markets fish from these fisheries, thus offering an integrated line of services. Yonkyu mainly serves clients on the islands of Shikoku and Kyushu, but ships fish to markets throughout Japan. The company is working on artificial hatching of more types of fish and is expanding sales channels, mainly in the Tokyo area.
Main products are semiconductors, batteries and LCDs.
Memories and batteries for notebook PCs are currently performing well. Multimedia is a key to future expansion. Main customers include Matsushita, Sharp, Canon, Sanyo and Nintendo. About half of revenues come from sales. The company deals mainly in steel sheet piles, H-beams and other steel materials.