Thai Prime Minister Prayut Chan-o-cha (4th L) attends a press conference on the performances of the government during the last two years, at the Thai Government House in Bangkok, capital of Thailand, on Sept. 15, 2016. Thailand could potentially upgrade itself from the long-standing status of a Third World developing country to a ''First World'' developed country, Thai Prime Minister Prayut Chan-o-cha said on Thursday. (Xinhua/Rachen Sageamsak)