This article explains the importance of cost classification and cost control techniques in business management to ensure that profit are maximized by minimizing on expenses. It covers various types of costs such as variable costs, semi-variable, semi-fixed, direct and indirect costs, cost drivers, cost-based pricing, and cost control techniques such as value analysis, ratio analysis, budget control, and standard control. The article also provides examples of cost drivers in DOSM and analyzes costs directly associated with pricing and cost control techniques.