Chengyang district south Korea factory Shimen, South Korea. According to Baidu map, Shimen, South Korea, located in Guangzhou, is the largest foundry of MichaelKors in the world. Chengyang District Korean factory is located in Qingdao, Shandong Province, and manufactures second-line brands such as MK and KS all the year round. The term "OEM" refers to an OEM factory. As the factory of the world, China still has many things unknown to the public. It only does OEM, that is, OEM and then delivers it to customers.