The use of the multipurpose base metal, zinc, in South Africa, has “been through a rollercoaster over the past ten to 12 years”, says International Zinc Association (IZA) Africa Desk executive director Simon Norton. With the Zincor refinery – owned by minerals mining company Exxaro – being closed since 2011, all refined zinc has had to be imported from South Korea and Kazakhstan with dollar-denominated costs and pricing. Until 2011, South Africa had access to 117 000 t of refined zinc, which was produced in Gauteng... Читать дальше...