1. 4. According to cement observation statistics, the weekly average kiln opening rate of cement kilns in Chongqing from December 2 to December 8 was 29.87%, with a month-on-month decrease of 11.36%. The average weekly shutdown time of each of the 44 cement kilns is 4. Cement observation includes the production side of cement and clinker and the demand side of engineering projects, which can provide key decision-making basis for enterprises. For more details, please visit the "Cement Observation" website.