Rock Tech Lithium Inc. announced that Mrs. Sonja Rossteuscher, the former Chief Financial Officer (CFO) of Tristone Flowtech Group is joining Rock Tech as its new Chief Financial Officer on November 01, 2022. Mrs. Rossteuscher is taking over the position from Mr. Stefan Krause who has held the role on an interim basis. Mr. Krause retains his seat as Vice Chairman of the Board of Directors of the Company.Mrs. Rossteuscher comes to Rock Tech with significant financial executive experience from both privately held and stock-listed international companies.

Her achievements in securing and managing credit lines in combination with streamlining and structuring global finance organizations will enhance the Company's ability to prepare and run the project financing for its planned Guben Converter and Georgia Lake Mining Projects. A Canadian by birth with more than 20 years' experience in Germany, Mrs. Rossteuscher embodies the Rock Tech DNA perfectly. Her strong communication skills and proven track-record in successful financings creditor and investor relations, cash management and organizational design and development will have a positive impact at both corporate level and across the whole Group.Sonja Rossteuscher has served on various executive teams and boards and holds a Master of Business Administration from the University of St.

Gallen, Switzerland.