Nippon Steel Corporation — one of Japan’s leading suppliers of steel plate to shipyards — has raised its prices by ¥10,000 ($90) per tonne from this month.

The increase in retail and construction sales brings the cumulative steel plate price increases in Japan since September last year to ¥60,000 per tonne. Other steel mills are expected to follow.

The price hike reflects an increase in price of iron ore and coking coal.