Official Copper Price Drops by 20,000 Yen to 740,000 Yen, Zinc Decrases by 10,000 Yen

JX Nippon Mining & Metals announced on 9th to decrease official copper price for January by 20,000 yen per ton to 740,000 yen. It is the ground of dropping overseas market and weakening of the dollar against the yen.
Mitsui Mining And Smelting also decreased official zinc price for January by 10,000 yen per ton to 220,000 yen.