Shenzhen Qingyi Photomask Ltd. Class ASSE: 688138

"Shenzhen Qingyi Photomask Limited"Announcement on Voluntary Disclosure of R&D Progress of High-end Semiconductor Photomasks

· Issued by Shenzhen Qingyi Photomask Ltd. Class A via Shanghai Stock Exchange
Announcement on Voluntary Disclosure of R&D Progress of High-end Semiconductor Photomasks

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