Warning: Don't accept a position with 'Catherine,' the owner of this Joy English Language branch school in Baicheng city, Jilin province. She is a sociopath who will rip you off and take advantage of you. She is very aggressive and demanding and won't take 'no' for an answer.
I had several dealings with her during my time in Baicheng including making a T.V advertisement and doing a demonstration class at her school and i observed her behaviour first hand. You have been warned!