Limestone
Dolomite
Mgnesium Hydroxide
Ferro Silicon Nitride
Silicon Carbite
Non asbestos fiber
Others






We are a mining company, established in 1935.
Main products are Limestone and Dolomite from our own mine, located in central Japan.

We are also a Non-hologen frame retaradant producer. Our speciality is micronised Brucite, which is imported from China and Russia. After mit stearic acid treated 3-4 micron powder-brucite are used at the iproduction mainly PE materials (ex. EM-cable) as Non-halogen frame retardants..


y10/01z We continue our Flame Retardant Div. single handedly.
y08/29z Our Head Office has moved.(Tel/Fax.No. remain the same)
y05/10z HP renewal
y00/00z
y00/00z

Limestone

Limestone from Nago-Mine is widly known for its pureness.
Especially low contents of SiO2, Fe2O3 and F .
Further Information
Dolomite

Miyama-Mine is the biggest Dolomite-Mine in West Japan.
and its Dolomite is characterized by the highest Mg-content in domestic Dolomite resources.
Further Information
Magnesium Hydroxide(Non Halogen Flame Retardant)
"Maglux"

It is necesary to use Non-halogen Flame Retardant, if a goods must be producted by Non-halogen material, such as PE and PP. For its purpose Magnesium Hydroxide is a suitable flame retardant.
With Stearic acid surface modified "Maglux" is cost-effective Flame Retardant and Filler for these Plastics.
Further Information