Fully up-to-date, the directory includes all the mining companies (producers of coal, gold, copper, silver, tin, lead, zinc, uranium, rare earth, industrial minerals, etc) plus the companies that ...
Base Metal Prices Mixed as Trade Tensions Continue to Unnerve Market -- Market Talk 0950 GMT - Base metal prices are mixed, with LME three-month copper flat at $9,174 a metric ton and LME three-month ...
Calcination has been widely employed. However, it has a high energy cost and environmental issues due to the release of toxic gases containing arsenic. In the treatment of refractory gold ores ...
One local artist makes jewelry so cute, I wear her pieces on this show everyday! Founded in 2021, Luz Jewelry is handmade in Portland and brings luxury to everyday life with ...