ISTANBUL (Turkey), September 15 (SeeNews) – Turkish airport operator TAV Airports Holding [BIST:TAVHL] said on Monday it has agreed to acquire a 40% stake in Sabiha Gokcen Uluslararasi Havalimani Yatirim Yapim ve Isletme (ISG), the operator of the Sabiha Gokcen Internartional Airport in Istanbul, as well as 40% of LGM Havalimanlari, which operates facilities at the airport.