Bona Film Group's multiple shareholders plan to reduce their shareholding by no more than 3.9754%; Ningbo Runhe High-Tech Materials' shareholders plan to collectively reduce their shareholding by no more than 2.00%; Lanwei Medical's shareholder, Ocean Wide Holdings Group, plans to reduce their shareholding by no more than 2%; Shanghai Sunglow Packaging Technology indicates additional investment in jintaike involves new business areas with uncertain expected returns; Zhengping Road & Bridge Construction received a warning letter from the Qinghai Regulatory Bureau of the CSRC; AsiaInfo Security received a warning letter from the Jiangsu Regulatory Bureau.