Events in May offered support to the thesis that Africa can incubate tech with global application. Two startups that developed their business models on the continent — MallforAfrica and Zipline — were tapped by international interests. DHL acquired a minority stake in Link Commerce, a turn-key e-commerce company that grew out of MallforAfrica.com — a Nigerian digital-retail startup. Link Commerce offers a white-label solution for doing online-sales in emerging markets. Retailers can plug into the company’s platform to create a web-based storefront that manages payments and logistics. Nigerian Chris Folayan founded MallforAfrica in 2011 to bridge a gap in supply and demand for the continent’s consumer markets.