yes,huobi have a pow pool.I am in crypto for about 5 years and in my oppinion and experience with other exchanges this is the best.on their ethereum pool pps+ reward system just like on many other pools.on huobi pool mining is free ,and withdraw is auto.mining reward is on your eth account on huobi exchange at about 11..a.m.+-2 hours.you can trade your eth for btc usdt usdc ........