The overall domestic copper cathode output in May was at a low level due to the intensive maintenance. Although two smelters in Shandong resumed production in May, the production of copper did not resume.
In April, China's silicon metal prices maintained a general downward trend, while the silicon metal prices in Yunnan were higher than that in other regions. As of May 11, the prices of 553# silicon metal without oxygen stood at 18,200-18,300 yuan/mt at Huangpugang Port, down 700 yuan/mt or 4% MoM. The prices of 3303# silicon metal were 21,200-21,300 yuan/mt, down 1,150 yuan/mt or 5% MoM. The prices of 421# silicon metal recorded 21,300-22,200 yuan/mt, down 850 yuan/mt or 4% from a month ago.