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Investor Hotline

datatime：2025-04-09

Hotline Contact Department:：Securities Department

Hotline：86-0562-5860547

E-mail：tgkjzqb@163.com

Fax phone number： 86-0562-2834711

Hotline hours： Monday to Friday 8:00 to 12:00，14:30 to 17:30

Wanicp record No.: 11170856 Copyright: Tongguan Mine Construction Co., Ltd. of Tongling Nonferrous Metals Group

Anhui public network security:34515314651231号

technical support：Anhui Weining network