Chenghai Spirulina is a tiny plant that floats on the surface of the water that is invisible to the naked eye. It looks like a blue-green, unbranched filament under the microscope, like a coiled spring. The growth conditions of spirulina are very demanding. There are special requirements for light, temperature and water quality. Especially the water quality must be in the alkaline water body with pH value above 9 and 3. Spirulina can naturally multiply. At present, there are only three places in the world that can naturally grow spirulina, namely the sloping lakes of Africa, the TEXCOCO lakes of Mexico and the Chenghai Lake of Yunnan, China.

Huaping County is located in the northwestern part of Yunnan Province, and is located in the Jinsha River in the south. It is the transportation hub of the west of Yunnan. The temperature difference between day and night is large, and the mangoes produced are delicious and nutritious. Because of the abundant sunshine, the mangoes of purple, red, orange and yellow are very beautiful. According to reports, due to late maturity, Huaping also had mangoes hanging in the trees in December.