Sichuan social security in which year the introduction of contributions

Hello. Legal analysis:Sichuan social security from which year the implementation of:1999 began to implement. Chengdu City, Sichuan city filled workers from 1999 to start paying social security. Social security payment can be divided into individual payment and unit payment of two kinds. Usually, when you pay the social security fund in your own name, you can only pay the pension and medical insurance part of the social security. The characteristics of social security are as follows:1. The objective basis of social insurance is the risk existing in the field of labor, and the subject of insurance is the worker's person;2. The subject of social insurance is specific. Including workers (including their relatives) and employers; 3, social insurance is compulsory; 4, the purpose of social insurance is to maintain the reproduction of labor force; 5, the insurance fund comes from the contributions of employers and workers and financial support. The scope of insurance objects is limited to workers, excluding other members of society. The scope of insurance content is limited to various risks in the labor risk, excluding other property, economic and other risks.