Is there a night shift in Daqinghe Salt Field?

According to the recruitment brochure of Hebei Luchang Daqing Salt Chemical Industry Group Co., Ltd., the working hours are: 08: 30 am-12: 00 am and 13:3- 18:00 pm, so there is no night shift in Daqing Salt Factory. Saltworks are places where salt is produced. The salt production in Zigong area has become one of the three major salt fields in Sichuan during the Yongzheng and Qianlong periods of the Qing Dynasty.