Mines｜Mines & Factories｜ASAHI KOHMATSU CO., LTD.

Mines & Factories

鉱山・工場

Mines

Since our foundation in 1920, we have maintained mines nationwide.
We produce high quality and highly white crystallized limestone with few impurities.

In resource-poor Japan, limestone is an exceptionally abundant resource.
Our company had focused attention on high quality and highly white crystallized limestone, has since been securing it as a resource, and mined. We have realized stable supply system by allocating operating mines both in east and west Japan.

The Asahitakine Mine (taken over June 2001 from Sumitomo Osaka Cement Co., Ltd.) and the Asahi Ohgoe Mine merged in October 2011, giving birth to the Shin-takine Mine.
The current operating mining area is approximately 7,450,000㎡ with several hundred million tons of ore stored, and is regarded as Japan’s leading mine in the field of crystallized limestone.
5km east of JR Ohgoe Station, this region is a tourist destination, with the calcareous caves of Abukumado and Irimizusyonyudo. The neighboring town Miharu is famous for its cherry tree.

Location	1-25, Kakeiri, Kamiohgoe, Ohgoe-machi, Tamura City, Fukushima Prefecture TEL：+81-247-79-3389 FAX：+81-247-79-2404 Google Map
Start of Mining	1963（opened by Sumitomo Osaka Cement Co., Ltd.）
Area and annual production	Working face 123,000m² Production amount: 340,671 tons (2017) ★For sale and provision to in-house factories
Mineral deposit	The limestone deposit is of high quality due to the limestone’s white crystalline grain, which is heat-denatured. Reaches strike N0°～10°W, layer thickness of 500~600m at 60°W inclination, and strike is extended to as much as 3,000m.

The Ishinokura Mine is located along Hitachiota City and Hitachi City in Ibaraki Prefecture. The mine is 15 minutes by car from Omika Station on the JR Joban Line, or 15 minutes by car from the Joban Road Hitachi Minami Ota IC. With the Mayumi Shrine, which has trees of more than that is 900 years old and hiking courses in the mine area, you can see many pilgrims and hikers coming to visit.

Location	1660, Kamezaku-cho, Hitachiota City, Ibaraki Prefecture TEL：+81-294-74-4010 FAX：+81-294-74-4510 Google Map
Start of Mining	1921
Area and annual production	Working face 110,000m² Production amount: 123,092 tons (2017) ★For sale and provision to in-house factories
Mineral deposit	The limestone deposit originates from clay rock. The layered deposits of the limestone reach approximate 20~100m thickness, with a 300~600m strike extension.

The Hatayama Mine is in Niimi City, on the northern border of Okayama Prefecture. It is located approximately 3km from Niimi Station on the JR Hakubi Line. The entire region has many Karst Plateaus called Atetsudai, and we are mining a portion of this limestone. Approximately 6km southeast of the mine is Ikurado, which is famous for its calcareous caves.

Location	Pureshisu #101, 2482-4, Takao, Niimi City, Okayama Prefecture TEL：+81-867-71-2211 FAX：+81-867-71-2233 Google Map
Start of Mining	1989
Area and annual production	Working face 25,000m² Production amount: 79,791 tons (2017) ★For sale
Mineral deposit	The limestone is from a high quality limestone deposit with white crystals of micro crystalline, receiving thermal metamorphism from semi-plutonic rocks and granite.