How about Heilongjiang Duobaoshan Copper Co., Ltd.?

Where I used to work, and then I left my job. My advice to you is: if there is anything else, don't go to that garbage unit. It doesn't matter if you go in, the salary is very low. The important thing is that you get more than you do without a diploma. Housing provident fund is said to exist, but it has not been paid, and the proportion paid by the company will not be refunded after leaving the company. At present, we are still looking for labor arbitration to solve it.