“30,000 Tons/Year of Rare Earth IR Industrial Production Technology” of Qingdao Yikesi Company Passes Appraisalrn On September 24, 30,000 tons/year of rare earth IR industrial production technology" developed by Qingdao Yikesi New Material Co., Ltd. passed appraisal organized by CPCIF, which thought that this industrial technology reached the internationally advanced level.