Puli, Nantou
Puli is a town in Nantou county, central Taiwan, where most of the island's traditional papermaking still runs through a handful of family workshops. This block comes from one of them: 100% cotton, cold press, hand-formed a sheet at a time rather than run off a machine roll.
It's also the surface the whole Yushan range was formulated against. When a pigment note on this site says a colour "granulates hard" or "lifts cleanly," that reading was taken on this paper, not a lab card. A different paper will change how every colour in the range behaves.