Construction chemicals are commonly used in the construction industry. These materials are divided into two main categories, liquid and powdered products. The process of producing the powdered products addressed in this paper consists of three manufacturing stages comprising of feeding, mixing and filling and packaging. This paper is intended to study the operations in two of the three. Currently, the average flow time in the powdered products plants is quite long; consequently, the lead time to deliver finished goods to customers is increased. It is anticipated that the customer lead time can be reduced by improving the construction chemicals operations. The paper studies the existing operations of the plants, conducts process mapping and time study, and develops simulation models for the current production system in Arena software for improving the total flow time, resource utilization, and waiting time in queues.