Alex David, manager of the Tea Department at Stassen Exports Private Limited, displays the quality inspecting procedures at Stassen Exports Private Limited in Colombo, Sri Lanka, Oct. 28, 2019. One of Sri Lanka's biggest tea producers is aiming to promote organic Ceylon Tea in the Chinese market as the island country has the world's first certified organic tea garden in the Central highlands, an official from the company said here Thursday. (Xinhua/Tang Lu)