Social security numbers distinguish individuals from companies. The company's social security number is the social security registration number established by the work unit, which is used to pay social security for employees, and make some inquiries, declarations and statistics according to this social security number. Personal social security number is the login number of the individual or the company that pays for it, and it is also the basis for enjoying the treatment in the future.
Legal basis: Article 58 of People's Republic of China (PRC) Social Insurance Law.
The employing unit shall, within 30 days from the date of employment, apply to the social insurance agency for social insurance registration for its employees. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay.
Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration.
The state establishes a national unified personal social security number. Personal social security number is a citizen's identity number.