From June 2015 till August 2015, the factory requested 2 boilers workers to work in shift (1 shift from around 7 a.m. to 7 p.m. and from 7 p.m. to 7 a.m. of the following day). The factory pays boiler workers with an additional VND 2,000,000 a month. However, this amount is not enough as compared to an amount of approximately VND 3.255.000 to cover regular OT and night OT,