Due to the COVID-19 pandemic and the Company's reduced corporate activity in business development and promotion the role of Mr. Chretien as President was no longer determined to be essential at this time.

Mr. Chretien will work to formally transition his responsibilities over the coming weeks which will be handled in part by Tetra's Chief Executive Officer, Mr. Guy Chamberland, Tetra's Chief Financial Officer, Mr. Di Paola and Tetra's Chief Operating Officer, Mr. Neron.