According to Baidu Encyclopedia, Changzhou Sheng Rui Motor Factory mainly deals in mobile phone accessories and vibration motors. Workers in Sheng Rui reported that the work was relatively easy, and most of them worked in shifts. Basically, it's Saturday, rest, about ten hours a day, which is easy to do.

Changzhou, referred to as Longcheng for short, is a prefecture-level city in Jiangsu Province, one of the central cities in the Yangtze River Delta region of China, an advanced manufacturing base and a famous cultural tourism city, which was approved by the State Council.