Marubeni Corporation, a major trading company in Japan, reported that the aluminum stocks at Japan's three major ports totaled 324,700 tons as of the end of January, slightly growing by 0.3% compared to the previous month.

Among them, the stock in the Yokohama Port was 135,400 tons, down from 141,000 tons in the previous month; that in the Nagoya Port was 170,200 tons, increasing from 163,100 tons recorded last month; that in the Osaka Port was 19,100 tons, rising from 19,500 tons in the previous month.