Africa’s richest man, Aliko Dangote, said on Monday he expected to step up exports of cement and other commodities from Nigeria from this year as he focuses on foreign markets to boost sales and generate much-needed hard currency. Dangote told Reuters he expected to have 8 million tonnes of cement to start exporting from July and was commissioning a 650 000bbl/d refinery near Lagos – set to be Africa’s biggest – next year.