Dear User,
Hello!
Due to the significant fluctuations in the sulphur price under the combined influence of policies, fundamentals and other factors, and in order to more comprehensively respond to market demand and reflect market changes in a timely manner, SMM will adjust the update frequency of the existing SMM Chinese Sulphuric Acid Price Index from Copper Smelters and the regional smelting acid EXW prices from weekly to daily, with updates published before 12:00 Beijing time on each working day, starting from August 3, 2026.
Thank you for your continued trust and support for SMM data services. If you have any questions or require further information, please feel free to contact us.
SMM Copper Industry Research Team
July 27, 2026