Türk Hava Yollari Anonim Ortakligi (IBSE:THYAO) (Turkish Airlines) is considering joint ventures and initial public offerings for its cargo business and regional carrier as it weighs up options to grow both internally and through deals, the chairman of Turkey's national airline said. The airline also plans to participate in international bond markets, including issuing Eurobonds, to finance future investments and growth, Ahmet Bolat told Reuters.