Legal analysis: Three-way catalytic converter is the most important external purification device installed in the automobile exhaust system, usually located between the bottom of the automobile and the exhaust pipe. Cylindrical device. It can convert harmful gases such as carbon monoxide, hydrocarbons and nitrogen oxides in automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. So as to purify automobile exhaust. Because the three-way catalytic converter contains precious metals, even the three-way catalytic converter in the old car is expensive. So when you go to repair the vehicle, you must pay attention to whether the three-way catalytic converter has been tampered with. The state expressly stipulates that only recycling enterprises with relevant qualifications can recycle three-way catalytic converters, and it is illegal to resell them privately. Therefore, as long as the car owner friends are optimistic about the three-way catalytic converter in their cars, the rest of the work will be handed over to the scrapped car dismantling enterprises.

Legal basis: Article 33 of the Regulations on Safety Management of Hazardous Chemicals. The state implements a licensing system for the operation of dangerous chemicals (including warehousing operations, the same below). Without permission, no unit or individual may deal in dangerous chemicals. A legally established hazardous chemicals production enterprise does not need to obtain a hazardous chemicals business license to sell hazardous chemicals produced by the enterprise in its factory area. According to the provisions of the People's Republic of China (PRC) Port Law, a port operator who has obtained a port operation license can engage in hazardous chemicals storage operations in the port area without obtaining a hazardous chemicals operation license.

Article 225 of the Criminal Law Whoever, in violation of state regulations, commits one of the following illegal business operations and disrupts the market order, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also or only be fined not less than one time but not more than five times the illegal income; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years, and shall also be fined not less than one time but not more than five times his illegal income or his property shall be confiscated: (1) dealing in franchise, monopoly goods or other commodities whose business is restricted by laws and administrative regulations without permission; (2) buying and selling import and export licenses, import and export certificates of origin and other business licenses or approval documents stipulated by laws and administrative regulations; (three) without the approval of the relevant competent departments of the state, illegally engaged in securities, futures, insurance business, or illegally engaged in fund payment and settlement business; (four) other illegal business activities that seriously disrupt the market order.