What business in Shenzhen need social security continuity

Buying a house, buying a car and so on. Buying a house in Shenzhen requires a record of continuous payment of social security for the last one year; the requirement for buying a car lottery is to have a record of continuous payment of medical insurance for the last two years. Social insurance is a social and economic system that provides income or compensation for the population that is incapacitated, temporarily out of work or has suffered a loss due to health reasons.