Langjin Technology: Summary report on the sponsorship work of Northeast Securities Co., Ltd. and Guanshan Donglangjin Technology Co., Ltd.\'s initial public offering of shares and continuing supervision of its listing on the GEM
Langjin Technology: Shandong Langjin Technology Co., Ltd.'s announcement on the 2021 profit distribution plan
Announcement on the listing and trading of Shandong Langjin Technology Co., Ltd. shares on the GEM
Langjin Technology: China Securities Regulatory Commission's approval for the company's initial public offering of shares
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