Why is Binance having a fee when listed on exchange is lower than Huobi? Huobi is also a big exchange but its volume is not as big as Binance. even, Binance only lists really good altcoins on their exchange, and Huobi still has no rigorous tests like Binance.
Huobi is a very shady exchange. It might seem like a big exchange, but most of the volume they generate is fake done through wash trading (i.e. buying and selling your own orders repeatedly). This means that Huobi isn't making a lot of money, and therefore needs other streams of income to get that money.
Huobi some years ago generated like 1-2 million BTC in daily trading volume when the fees were zero. After the PBOC (People's bank of China) cracked down on the exchanges in China, the volume of Huobi dropped to just ~10,000 BTC on average. Giant turned out to not be a giant at all. Asian exchanges are copy cats and cheaters.