As expected, the prices of gold and copper are down ahead of the US Federal Reserve Chair Janet Yellen's much anticipated annual speech on the direction of monetary policy.
China is the leader in extracting gold, zinc, lead, molybdenum, coal, tin, tungsten, rare earths, graphite, vanadium, antimony and phosphate, and holds second place in mine production of copper, silver, cobalt, bauxite and manganese.