Copper prices in the world are going down Friday morning, according to trading data.

Accordingly, December futures price for copper at the COMEX stock exchange of New York dropped by 0.09 percent to $4.4295 per pound (about 0.45 kg).

But at the London Metal Exchange (LME) on Thursday, the price of one ton of copper went up by 1.24 percent to $9,666.5, that of aluminum—by 2.25 percent to $2,746.5, and the price of zinc—by 1.11 percent to $3,372 per ton.