Angola’s richest woman, Isabel Dos Santos has partnered with Portuguese retailer, Sonae, to open five food hypermarkets in Angola by 2015 through her retail investment company, Condis.

Isabel Dos Santos, the daughter of Angola’s president Jose Eduardo Dos Santos, founded Condis in 2011 with the view of opening stores this year, but operational difficulties delayed the launch of the project in Angola.

Sonae board member, Luis Reis told Reuters that they plan to open four or five stores and a logistics centre in the capital Luanda in 2015.

Although the Condis-Sonae joint venture marks Isabel dos Santos’ first entry into the retail business, this is not her first JV with a Portuguese company.

Sonae is a major player in Portugal’s food and non-food retail sectors, with presence in more than 20 countries. It is owned by Portuguese billionaire Belmiro de Azevedo.

As Africa’s population boom continues to attract foreign investors into its retail market, global financial consulting firm, Deloitte, says more than one-third of the continent’s population fall within the middle class, and according to its projections, this might rise to 1.1 billion people by 2060.

South African-based retailer Shoprite, which is the continent’s top grocer, had revealed this year that it will add 21 shops to its chain over the next three to four years while U.S. retail giant Wal-Mart is planning to increase its stakes in Africa’s retail market, after acquiring 51 percent stake in South African wholesaler Massmart last year.

And the French are not left out. Paris-headquartered Carrefour is also planning to open stores in eight African countries through its partnership with another French distributor, CFAO.

Angola, where Dos Santos is planning to open her retail business, is Africa’s No.2 crude producer after Nigeria. Its economy is said to record a 7.1 percent this year.