'Mangbei' on vendor pages
Yoshi en gives the terroir of several organic Lincang teas as 'Mangbei, Lincang' at 1,500-1,800 m, without characters, county or village. No place called Mangbei was found. Mangfei (忙肺, Yongde) fits the altitude; Mangbang (忙蚌, east Mengku) is another near-homophone. Until the vendor confirms the characters, treat 'Mangbei' as 'somewhere in Lincang'.