Lakeshore Biopharma Co., Ltd. (China)

The Company is principally engaged in the research, development, manufacturing and sale of vaccines and therapeutic biologics.
History
2020 The Company was incorporated under the laws of Cayman Islands as an exempted company with limited liability in November 2020. The history of YS Group can be traced back to 2002 when Mr. Yi Zhang, its founder and controlling shareholder started the vaccine business in the PRC, and has expanded its international business operation in the United States and Singapore since 2009.
2022 On September 29, 2022, Summit, YS Biopharma, Merger Sub I, and Merger Sub II entered into the Business Combination Agreement, which provides for (i) the merger of Merger Sub I with and into Summit, with Summit surviving the First Merger as the surviving entity and becoming a wholly-owned subsidiary of YS Biopharma, and (ii) the merger of the Surviving Entity with and into Merger Sub II, with Merger Sub II surviving the Second Merger as the surviving company and remaining as the wholly-owned subsidiary of YS Biopharma. As a result of and upon consummation of the Business Combination, the shareholders of Summit will become shareholders of YS Biopharma, and YS Biopharma will become a public company with its ordinary shares and warrants listed on the Nasdaq. Capitalized terms in this summary of the Business Combination Proposal not otherwise defined in this proxy statement/prospectus shall have the meanings ascribed to them in the Business Combination Agreement.
Prior to the First Merger Effective Time, the Company will be renamed as YS Biopharma Co., Ltd.
Stock Exchange Listing of YS Biopharma Ordinary Shares and YS Biopharma Warrants:
The YS Biopharma Ordinary Shares and YS Biopharma Warrants issuable pursuant to the Business Combination Agreement to be approved for listing on Nasdaq under the symbols “YS”and “YSBPW”, respectively, subject to official notice of issuance.
2023 On March 16, 2023 LakeShore Biopharma (Philippines) Inc. (“Philippines LakeShore”) was incorporated under the laws of Philippines as an entity owned by LakeShore Group. Philippines LakeShore was incorporated for the purpose of research, development, producing, wholesaling and commercializing pharmaceutical products, including vaccines and other biological products.
2024 On April 5, 2024, LakeShore Tech Hong Kong Limited and LakeShore Bio Hong Kong Limited were incorporated as holding company under the laws of Hong Kong as entities owned by LakeShore Biopharma.
On April 19, 2024, Hu'an Yuanhang Technology (Beijing) Co., Ltd was incorporated for research and development, with name changed to Hu'an Yuanhang Biotechnology (Beijing) Co., Ltd on July 11, 2024. On June 3, 2025, the name is changed from Hu'an Yuanhang Biotechnology (Beijing) Co., Ltd to Hu'an Biotechnology (Beijing) Co., Ltd.
In connection with the change of our legal name to LakeShore Biopharma Co., Ltd, the ordinary shares and Warrants began trading under the symbols “LSB” and “LSBPW,” respectively, effective from May 28, 2024.
2025 Effective with the opening of business, September 22, 2025, the Company's ordinary shares and warrants have been suspended from trading on The Nasdaq Capital Market (“Nasdaq”). On the same day, the Company's ordinary shares and warrants are expected to commence trading on the OTC Pink Open Market (“OTC Market”) under the symbols “LSBCF” and “LSBWF”, respectively.