On January 20, the State Administration for Market Regulation (SAMR) and the Standardization Administration of China (SAC) released GB/T 45203-2024 "Recycled Black Mass for Lithium-Ion Batteries". This specification details multiple requirements and regulations for recycled black mass used in lithium-ion batteries, including specific chemical composition, inspection and acceptance standards, sampling and sample preparation, packaging, and transportation. The key highlights compared to the pre-draft released in June 2024 are as follows: This version classifies the recycled black mass into two types and two grades based on the content of nickel, cobalt, lithium, and impurities. It adds requirements for water-soluble fluoride and specifies the content limits for chemical components like iron, phosphorus, and manganese. Overall, the new specification provides more detailed and specific guidance and standards for the comprehensive utilization industry of spent power batteries from new energy vehicles, contributing to the healthy development of the industry.