There is no need to pay living expenses. But you can send him money to buy his own daily necessities and other food.

You don't have to pay for meals in labor camps, and you have to buy your own daily necessities such as toilet paper. You'd better send money home, not too much. One or two hundred dollars a month is enough.

There is very little remuneration for their labor, because the profit generated by their labor is already small, and one month 10 yuan is good, so it is impossible to offset the living expenses with labor.