No.312Chaoyang District Popularity Ranking BeijingNo.2 3D Digital ChemicalNo.2 Ying Ji Jiu YuanNo.2 San Wei Shu ZiNo.3 Coal MiningNo.4 Cai MinesNo.4 Engineering SafetyNo.4 Xin Li XueNo.5 Chemistry CompositingNo.6 Logistics ManagementNo.7 Feng Li MachinesNo.8 CoalNo.8 Coal Chemicals Technology理事单位高新技术企业企业技术中心中关村高新技术企业省级高新技术企业市级高新技术企业