Lake Chenghai in Yongsheng County is the only lake which can natively grow spirulina in our country, which has established the spirulina production base with annual production of 1,000 tun at present.

• 永胜县的程海是我国唯一能天然生长螺旋藻的湖泊，目前已建成年产1000吨的螺旋藻生产基地；