1. If it is for purchase and sale, a hazardous chemicals business license is required.
2. If it is used by a company, you need to provide the company's business license, legal person ID card and other supporting documents, and you need to sell it in real name.
3. Units whose usage reaches the usage standard of hazardous chemicals shall provide licenses for the use of hazardous chemicals when purchasing hazardous chemicals.
Please note that the specific regulations may vary from place to place and specific hydrogen types. For details, please consult relevant local departments.