Mitsui Matsushima. 

Mitsui Matsushima Holdings Co., Ltd. engages in the production and sale of coal products in Japan and internationally. It also produces and markets coal to steel mills, power utilities, and general industries; and operates, generates, and sells solar power to electric power companies. In addition, the company provides coal mine development/operation and coal preparation technologies; shredders, office security products, pouches, and window guidance systems; mask blanks to photomask manufacturers for various applications; straw products for dairy and beverage companies; paper and PET beverage cup and food package products for various customers; custom-made suits, as well as manufactures and sells facilities and measuring equipment for the production of crystal devices. Further, it engages in the provision of nursing care services for the elderly, in-home, and outpatient; operation of coal storage and transportation equipment, sample testing of coal, inspection of conveyors used to transport ash and gypsum, and deployment and recovery of marine oil fences; operation of an LPG filling station in Saikai city, as well as the convenience store; provision of investment and lending services to coal mines; and port and harbor businesses. Additionally, the company sells food containers; manages elderly housing; produces and sells men's and women's clothing and dress shirts; and provides mining instruction, ventilation analysis, safety and security, and rescue and relief training services. The company was formerly known as Mitsui Matsushima Co., Ltd. and changed its name to Mitsui Matsushima Holdings Co., Ltd. in 2018. Mitsui Matsushima Holdings Co., Ltd. was founded in 1913 and is headquartered in Fukuoka, Japan.