Open-top drum container with fully open upper structure, 200L standard size cylindrical vessel designed for easy input and removal of liquid and powder materials. Optimized design for raw material preparation, chemical mixing operations, and waste liquid collection in manufacturing sites, with material options including steel, stainless steel, and resin construction. Unlike sealed drum containers, no lid removal required, suitable for manufacturing processes prioritizing work efficiency. UN standard compliant products support hazardous material transport, and food-grade specifications enable raw material storage in food manufacturing industries.