Vancouver - Lithium South Development Corporation (the 'Company') (TSX-V: LIS) (OTCQB: LISMF) (Frankfurt OGPQ) Appointment of Vice President and Director of Project Development.

The Company is pleased to announce the appointment of Mr. Fernando Villarroel to the position of Vice-President and Director of Project Development. From 2009 to 2013 he worked with Lithium Americas Corp (Minera Exar S.A.) as Project Engineer which included construction, management and commissioning of the initial pilot evaporation facilities and laboratory at the Cauchari Olaroz Lithium Project. He has been a consultant to Neo Lithium, Rincon Lithium and Ganfeng Lithium among other companies. He holds a degree in Industrial Engineering and has specialized training in Data Modeling and Analysis for Business and Engineering from M.I.T. Mr. Villarroel is based in Salta, Argentina.

Adrian F.C. Hobkirk President is quoted, 'We are very pleased to have Mr. Villarroel undertake a senior role with the Company. Over the past four years he has proven invaluable with his lithium expertise and relationships with local industry services providers and government agencies. We look forward to his future contributions.'

Marketing Program

Further to a news release dated April 5, 2021, the Company announces an addition to its Investor Relations Program. LIS has appointed OGIB Corporate Bulletin to aid in raising corporate awareness and investor interest via digital advertising. OGIB Corporate Bulleting has an eleven-year business record and has developed and extensive audience. The contract fee is $ Cdn 200,000 for a six-month period of coverage and digital advertising. The program is designed to complement the companies additional advertising programs.

Contact:

Adrian F. C. Hobkirk

Tel: 954-684-8040

The securities referred to in this news release have not been, nor will they be, registered under the United States Securities Act of 1933, as amended, and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons absent U.S. registration or an applicable exemption from the U.S. registration requirements.

This news release does not constitute an offer for sale of securities for sale, nor a solicitation for offers to buy any securities. Any public offering of securities in the United States must be made by means of a prospectus containing detailed information about the company and management, as well as financial statements.

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