jfe holdings, kobe steel, and sumitomo metal industries also returned to profit. the makers say higher prices of iron ore and coal since april are cutting into their profits. they go on to say they have not been able to pass on the extra costs to the customers. due to uncertainties over raw material prices, nippon steel and sumitomo metal did not release sales forecasts for the full business year in their latest earnings reports. >>> japan's nintendo said it suffered from the recent surge in the yen. it showed a foreign exchange loss of over $800 million due to a plummet in the yen value of its foreign assets. in its quarterly earnings report from april through june, the maker of game consoles and content said it posted a net loss of about $290 million. that's a change in direction from a $485 million profit a year ago. the company says sales fell more than 25%, about $2.2 billion, due to a lack of hits in game contents. despite the devaluation loss on its foreign assets, nintendo is keeping its earnings forecast unchanged for the business year through march 2011