On March 8, 2022, Mr. Mitchell Tyler notified the Board of Directors (the “Board”) of Helius Medical Technologies, Inc. (the “Company”) of his intention to retire from service on the Board upon expiration of his current term, and therefore, that he will not stand for re-election to the Board at the Company's 2022 annual meeting of stockholders. Mr. Tyler intends to continue to serve on the Board until immediately prior to such annual meeting. Mr. Tyler's decision not to stand for re-election to the Board is not the result of any disagreement with the Company.