Corio is to invest some EUR 50 mln in the purchase of Adacenter shopping mall currently under development in Adapazari, north-western Turkey. In addition, the company has been invited to take a 7% stake in the large-scale Acibadem project which is to be developed in the Asian side of Istanbul. The transactions are expected to provide a net yield of 8% in the first full-year of operation, Amsterdam-listed Corio said in a press release on Friday.