You go to the local government departments, such as the supervision department of the labor bureau and the petition office. You'd better go with more people and find the government to solve it first. This is the most effective solution. As long as the government can pay enough attention to it, it must be careful not to fight. As for the specific information, if there is no labor contract or subcontracting agreement, it will be at least not lower than the local minimum wage, and at least twice the salary during the National Day. If it really doesn't work, you can only apply for labor arbitration. The contractor, that is, your boss and the mine owner are jointly and severally liable.