Stone for architecture, only possible through mountain ownership.
From the quarry to the final installation, Oshima stone is handled in one place, on one island — working directly with the world's architects.
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We own our quarry, controlling the supply of raw stone with our own hands.
A rare capacity to stock, fabricate, and install some of the largest stone in Japan.
Quarrying, fabrication, installation, and transport — completed within the island.
Assembled once at our yard before the site — reducing installation error to near zero.
The true value of Oshima stone is the scale of what can be quarried — some of the largest in Japan. That scale and presence is why architects and general contractors worldwide have placed it at the core of a space. Only those who own the mountain can deliver this stone.
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Let us help you find the right stone for your architecture.
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