Turkish contractors could win construction projects worth 25-30 billion USD in Qatar over the next decade, said Emin Sazak, President of the Turkish Contractors Association (TCA). Qatar is planning to invest 200 billion USD in construction projects ahead of 2022 FIFA World Cup, a report by leading professional services group Deloitte suggests. Turkish contractors have the yearly capacity to undertake the planned package of projects entirely in the next ten years, Sazak told AA on Friday. However, capacity is only one factor, Sazak says. Political and economic relations with the Middle East country, as well as bidding conditions and competition, may prove harder to predict. \"Foreseeing how the development of these factors in the next decade is more difficult in the Middle East than in any other part of the world,\" he said. \"It is possible to estimate that Turkish contractors will undertake a total of 25-30 billion USD worth of business in the Qatari market.\" Turkey\'s foreign building and contracting sector saw an increase of 70 percent in the first half of 2013, with projects amounting to 11.6 billion USD. The industry now serves 101 countries with the addition of South Sudan this year. In 2012, Turkish contractors completed one billion USD of construction work in Qatar.