News Releases

Notice Regarding explosion at Konica Minolta Supplies Manufacturing’s Tatsuno Factory

August 12, 2021

Tokyo (August 12, 2021) – Around 5:15pm, August 12, there was an explosion at Tatsuno Factory of Konica Minolta Supplies Manufacturing Co., Ltd., a Konica Minolta Group company. The factory is located in Tatsuno, Nagano Prefecture. We would like to give our sincerest apologies again to residents in neighboring communities, relevant authorities and all those for the trouble. Below is the status as of 8pm, August 12. We will keep posting updates.


There was sound of explosion around 5:15pm. Employees of the factory confirmed it was an explosion in the production line and immediately called the local fire department and police department, among others. At 6:36pm the fire department completed their on-site activities with confirmation.


There was no injury or casualty. One unit of production equipment on the second floor of the production building was damaged and the external wall of the third floor of the building was partially damaged.


The on-site inspection will be conducted on August 14 with the local fire department and police department.


Effects on production and shipment are being assessed.


The Konica Minolta Group sincerely addresses the incident again and, in cooperation with the local fire department, police department and relevant authorities, will thoroughly investigate the cause.


Overview of Tatsuno Factory
- Address: 4333-1, Oaza Inatomi Aza Shiromae, Tatsuno, Kamiina-gun, Nagano Prefecture
- Operation started in 2007
- Production items: toner for multi-functional peripherals (MFPs) and other equipment
- Ground area: 46,641 square meters
- Number of employees: 44