Du Qinglin, a member of the Secretariat of the CPC Central Committee and vice-chairman of the CPPCC National Committee, delivers a keynote speech at the opening of the 2015 Eco Forum Global Annual Conference on June 27 in Guiyang, capital of Guizhou Province. The forum lasts for three days, from June 26 and June 28, 2015. [Photo provided to China.org.cn]