Mitsubishi
8058
S Science
5721
Nippon Telegraph & Telephone
9432
4
JX Advanced Metals
5016
5
Mitsubishi Heavy Industries
7011
Sumiseki Holdings Inc is engaged in management planning and management of group companies conducting purchase and sale of coal. The company is also engaged in business of manufacturing and selling materials like artificial diamonds, collecting crushed stones, processing and selling, and investing in overseas coal companies.