The facilities seem rather cold. Aside from one guy in a T-shirt, everyone is wearing jackets or wollen tops, tanktops, or both. It is currently tropical summertime in Shenzhen.
Google reverse image search show they collected images from different places. If I remember corectly this was the article : http://www.unknownfieldsdivision.com/blog/?author=2 it is from Summer 2014.