Data: SHFE, DCE market movement (Mar 13)

The National Institute of Advanced Industrial Science and Technology (AIST) in Japan recently announced the successful development of a copper gallium selenide (CuGaSe₂) solar cell with a conversion efficiency of 12.28%, setting a world record for indium-free wide-bandgap chalcogenide solar cells in the same frequency band. The research team enhanced the open-circuit voltage and cell performance by incorporating aluminum to form a back-surface field and optimizing the buffer layer. This achievement provides a new approach for the development of high-efficiency tandem solar cells.

[SMM SHFE Copper Flash News] According to the SHFE warrant daily report, copper futures warrants decreased by 11,264 mt during the day, the largest daily decline so far in 2026. Among them, Shanghai fell by 4,750 mt, breaking the previous trend of लगातार increases; Guangdong fell by 447 mt; Jiangsu fell by 5,867 mt; and Zhejiang fell by 200 mt. As copper prices declined during the week, downstream restocking demand emerged, copper cathode social inventories had already begun a slight destocking, and Shanghai spot copper also shifted from discounts to premiums.