shu pu was invented by the government in late 70s and early 80s, the
purpose was to make smaller plants/farms be able to produce something
to contribute GDP, and as the government keep holding this
posture, many factories would be able to produce "Puer", I think this
explained the quality issue; And nowadays, Puer is very popular
outside China and hence it become the red-hot spot for capital (Menghai

had been taken over in 2004), plus the semi-private owned China, and
local government protection, God
knows what will happen next...