Iceland tea of Pu 'er tea refers to an ancient tree tea named Iceland Village in Yunnan. This old cold village in Iceland can also be understood as the main mountain of Iceland. Only the ancient tree tea in this village can be called "Iceland". Its tea is characterized by lasting sweetness, which is thicker and more delicate than other teas. 1985- 1986 made more private tea, but the tea eventually flowed to state-owned enterprises. 1993 the first private fine tea enterprise was established. 1999 Rong Jiasheng acquired the state-owned enterprise "Shuangjiang County Tea Factory" and established Yunnan Shuangjiang Monkou Tea Co., Ltd. to purchase and process "Iceland" tea.