Just to be clear here though, the Chinese do pay income tax. They just don't call it income tax.
The government concocted a scheme that is a bit involved, and complicated, and clever. There are actually a lot of different sorts of taxes VAT, sales, etc etc etc. Some optional, some not.
In terms we'd be familiar with, the "income tax" over there is charged on the business side. Imagine that you didn't have to pay income tax, but your employer cut your salary 30% because he had to pay a "social harmonization insurance fee" or some such nonsense for each of his employees. The employees, of course, would never see that, but it still, to my mind anyway, is effectively an "income tax".
It really is rare to find a developed nation where people get away from income taxes. Even when you do appear to find such a nation, if you examine the system closely enough, you can usually find how they're paying it.