According to the information you introduced, it is definitely illegal for the company to forge a labor contract, but it is not enough to constitute a crime, and it is not enough to investigate the criminal responsibility of the company and its leaders. Therefore, you can report to the local labor inspection brigade, and the labor inspection brigade will impose fines, order corrections and other penalties on the company.
In addition, the labor contract is forged, and the laborer has the right to ask the unit to pay twice the salary of the unsigned labor contract, and the labor arbitration commission shall support the request according to law.