ISTANBUL (Turkey), September 4 (SeeNews) – Turkish life and pensions insurance company Avivasa Emeklilik ve Hayat, a joint venture between local conglomerate Sabanci Holding [BIST:SAHOL] and UK insurance group Aviva Plc, will list 19.67% of its share capital in an initial public offering (IPO) on Borsa Istanbul, Sabanci Holding said on Thursday.