X0306 4 2022-02-28 0 0001340476 DIRTT ENVIRONMENTAL SOLUTIONS LTD DRTT 0001494933 Lillibridge Todd W. 7303-30TH STREET SE CALGARY A0 T2C 1N6 ALBERTA, CANADA 1 1 0 0 See Remarks Restricted Share Units 2022-02-28 4 A 0 23540 0.00 A Common Shares 23540 149476 D On February 28, 2022 the reporting person was granted 23,540 restricted share units ("RSUs"), vesting in three equal annual installments beginning on the first anniversary of the grant date, and contingent upon the reporting person's continued service as the Interim President and Chief Executive Officer or, following the appointment of a new President and Chief Executive Officer, continued service as a member of the Board of Directors, through each applicable vesting date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one share of common stock of the Issuer (a "Common Share") or, at the Issuer's discretion, a number of Common Shares (or a combination of cash and Common Shares) equal to the fair market value of one Common Share. Director and Interim President and CEO /s/ Nandini Somayaji, as attorney-in-fact for Todd Lillibridge 2022-03-01