I'm going to work in Liaoning Chengda International Trading Co., Ltd., but they only offer internship positions without salary.

Have you had an interview? If you feel that the company environment is more humane, you can practice in the past. Their company didn't ask you to pay any fees, did it? If the company needs to pay the fee, it will be refunded. If you are a graduate now and need to make money, then choose another company. I only know that medical practice is unpaid and trade is unpaid. This is the first time I heard of it. If you are a student, you can study in the past. Just checked, the company is really a good company. Liaoning Chengda International Trading Co., Ltd. (hereinafter referred to as "Chengda International") is a holding subsidiary of Liaoning Chengda Co., Ltd. (hereinafter referred to as "Liaoning Chengda") and has become independent.