The refining agent is used in the production of non-oriented silicon steel and ultra-low carbon steel to enhance refining efficiency. This dataset includes primary raw and auxiliary materials, as well as energy consumption in the production process; however, infrastructure such as production equipment and facility construction are excluded from the system boundary. The life cycle inventory is compiled from data derived from multiple sources. The production process of the refining agent includes batching, mixing, pelletizing, screening, packaging, and warehousing.