In order to the process that takes place inside the steel plant industry in Salem steel plant, in people working HRM,CRM, and process taking place inside those mills. This study analyzes the inventory management like raw materials, work in progress and finished goods in Salem steel plant. This study used the inventory turnover ratio, it is very useful to predict the previous and past year of inventory in the company. Keywords : work in progress, Inventory turnover ratio, Stock and wholesale & Material manufacture.