Can you stop paying your social security contributions in the middle of your stay in Beijing?

Social insurance is a social and economic system that provides income or compensation to a population that is incapacitated, temporarily out of work, or has suffered a loss due to health reasons. The main programs of social insurance include pension insurance, medical insurance, unemployment insurance, work injury insurance, and maternity insurance. The social insurance scheme is organized by the government, which forces a certain group of people to take a part of their income as social insurance tax (fee) to form a social insurance fund, from which the insured can receive a fixed income or compensation for loss if certain conditions are met; it is a redistributive system, whose goal is to ensure the reproduction of material and labor force and the stability of the society.