SHANGHAI, Sep 2 (SMM) - An official from the Ministry of Industry and Information Technology (MIIT) said at the raw material industry high-quality development press conference that the prices of steel, copper, aluminum, cement and other products have declined recently, and that the MIIT will continue to ensure supply and stabilise prices in the next step, the CCTV News reported. The MIIT will promote stable production and supply in key industries. In addition, the MIIT will also establish a linkage monitoring mechanism for key raw material prices to guide the price stabilisation of key products such as lithium carbonate and rare earth.