In the summer of 2017, the high temperature continued, and under the hot weather, the front-line workers still persisted in their posts despite the high temperature. The sweat in their hair was wet in the hat, and it flowed down the cheek from the brim. Some employees even developed prickly heat and itched unbearably. Upon learning of this situation, the company's labor union purchased ice cubes daily and placed them in the workshop for cooling. During the afternoon break, they distributed "good products for relieving the heat" - watermelon, ice lolly, and salt soda, to the on-site employees to relieve the heat. In this hot summer, it brought a hint of coolness to the front-line employees.