South Africa, exporting some 160,000 tonnes of white maize annually to Namibia, is forecast to harvest a record 15.6 million tonnes of maize in 2017, double last year output after favourable weather conditions lifted yields. The white maize futures contracts for July delivery settled at N$1,735 per tonne on the JSE commodity derivatives market last week. This was down considerably from N$5,000 per tonne just over a year ago.