The main raw materials of this vacuum refining agent are calcium aluminate, metallic aluminum, and special binding materials, which can be used to improve molten steel quality and achieve desulfurization. This dataset includes major primary and auxiliary materials and energy used in the production process; infrastructure such as production equipment and factory construction is not included within the system boundary of the dataset. The life cycle inventory is compiled from data sourced from multiple references. The production process of the vacuum refining agent includes feeding, pressing, screening and packaging, and inspection procedures.