Istanbul-based tanker operator Palmali has become the top shipper for Ukraine’s Black Sea-borne sunflower oil exports, one of the country’s key export products, and plans to expand further, its chairman Mubariz Mansimov said. Azeri-born Mansimov said Palmali was the most active operator in the increasingly dangerous Black Sea, and plans to expand its presence in Ukraine by placing an order for 10 more cargo carriers and starting trading operations early next year.