Soursop tea Nguyen Van uses raw materials on the Basalt land of the Central Highlands, organic farming, has its own factory combining modern machinery and processing technology. Currently, the company has been granted a business license by the Department of Planning and Investment of Dak Lak on March 6, 2019 with MSDN: 6001653228, so you can be assured of the quality of the product and use it with peace of mind.