Invest News DetailReuters - Türkiye's Celebi Holding said on wednesday it would begin talks with potential foreign investors on options for strategic cooperation involving its ground handling services company Celebi Hava Servisi. Celebi Holding, which is active in aviation, tourism and fast food, said in a statement to the Istanbul Stock Exchange, it would hold talks either directly or via an investment bank. It said the strategic cooperation may involve a stake sale. The revenues of the Celebi Hava Servisi last year rose to 276,3 million lira ($233 million) from 231,7 million lira a year earlier.