Changchun City, Jilin Province. Aolin International Weight Loss Company is located in Changchun City, Jilin Province. Founded in 2020, Aolinmeizi Slimming Club in Economic and Technological Development Zone (formerly known as Xiao Ran Cosmetics Store in Economic and Technological Development Zone) is located in Changchun City, Jilin Province, and is an enterprise focusing on residents' service industry.