What is the treatment level of Jinan Refining and Chemical Company in Jinan?

Upper middle class. Jinan refining and chemical workers have good welfare benefits, and the facilities in the family area are relatively sound, including swimming pools, gymnasiums, sports fields, libraries, hotels and so on. The shuttle bus to downtown runs every hour. The income of Sinopec system is ok, and the per capita income of Jinan Refinery is also above average in Sinopec system.