Ecobank Transnational Inc. plans to sell $2.5 billion of its shares, in what it said is the biggest ever stock offering in Africa, reports Bloomberg News.

The combined offer of stock to existing shareholders and to the public will be held simultaneously on three west African exchanges in Nigeria, Ghana and Ivory Coast, Lome, Togo-based Ecobank said in an e-mailed statement distributed by its publicist in Kenya today. The offer opens Aug. 25.

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