This announcement is a separate document:
当升科技：中信证券股份有限公司关于北京当升材料科技股份有限公司使用闲置募集资金进行现金管理的核查意见
Dangsheng Technology: CITIC Securities Co., Ltd.\'s inspection opinion on the use of idle funds raised by Beijing Dangsheng Material Technology Co., Ltd. for cash management
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