[mrb]

You make the common mistake of assuming that if a pool is Chinese then its users are Chinese. In reality mining pools are used by people from all around the world. For example many like to mine at AntPool, because as the largest pool: their payouts are statistically frequent, they have a reputable and expansive infrastructure, eg. multiple stratum (API) endpoints in various countries which reduces latency for end-users.

As to miners actually physically located in China, many are located in China’s province of Sichuan specifically due to cheap hydropower, not coal.