It's Jiasen. A factory in China. I taught them how to build cases according to my ideas and for the most part they use my methods.
Take care of it because if it breaks you can't really send it back to be fixed. Most of what they make are decent cases but often there are small quality issues here and there as a result of the production process and no oversight throughout.
The case construction level will be similar to the J.Flowers by Jiasen brand.