Our Business in Zinc are based around mines in Brazil and Africa.
Zinc Facts :
Eight percent of Zinc Mines are open pit and eighty percent are underground. The remaining twelve percent are a combination of these two. In production volume, fifteen percent is accounted for open pit mines, sixty four percent for underground and twenty one percent from a combination of the two. Directly mined ore is rarely rich enough to be used directly by smelters. It needs to be concentrated. The ore contain five to fifteen percent Zinc. First the ore is crushed in order to concentrate it, then ground to enable optimal separation from other minerals.
Zinc concentrate contains about fifty five percent of zinc with some copper, lead and iron. It is usually done at the mine site to keep transport costs to smelters as low as possible.
Today, around seventy five percent of the Zinc used worldwide comes from mined ore and twenty five percent from secondary or recycled sources. Each year the levels of recycling are increased due to the progress of technology in Zinc production and recycling. Ninety percent of collected products are recycled after being collected at their end of life point.
An example of this would be the Zinc that is collected during the scrap which arises during the production of galvanised steel sheets.