Is it illegal for employees to work in an unlicensed anodic oxidation plant?

Not necessarily, it depends on whether the enterprise has caused a major accident and whether the employees know it.

Those who operate without a license shall be banned by the administrative department for industry and commerce according to law, and their illegal income shall be confiscated. Whoever violates the criminal law shall be investigated for criminal responsibility in accordance with the provisions of the criminal law on the crime of illegal business operation, the crime of major accidents, the crime of major labor safety accidents, the crime of causing accidents with dangerous goods or other crimes.

Unlicensed operation refers to the act of engaging in business activities without obtaining a license issued by the licensing examination and approval department in accordance with the provisions of laws and regulations, without applying for industrial and commercial registration with the administrative department for industry and commerce, and obtaining a business license. Unlicensed operation has complicated reasons such as imperfect legislation and poor supervision.