Casino, the French supermarket group, has announced the signature of a unilateral purchase agreement to sell Vindemia, the leading retailer in the Indian Ocean (Reunion Island, Madagascar, Mayotte, Mauritius), to the autmotive and retail business GBH for an enterprise value of €219 million ($244 million). Founded in 1972 on Reunion Island and gradually acquired by Casino between 2001 and 2007, Vindemia is said to have multi-format positioning comprising hypermarkets, supermarkets, cash …