Da Du Gang located in Yunnan, China.
It is certificated "the bigest tea garden in the world" by WRCA.
Also it is the one of the top 10 Puerh Tea Factory in Yunnan.
These mini cakes have been fermendted since 2006.
They has all ripe puerh tea signature "personalities".
No caffine , good for your digest system. It's a whold day healthy drink.