X0306 4 2020-03-10 0 0001340476 DIRTT ENVIRONMENTAL SOLUTIONS LTD DRTT 0001788914 Karkkainen Denise 7303-30TH STREET SE CALGARY A0 T2C 1N6 ALBERTA, CANADA 1 0 0 0 Common shares 2020-03-10 4 P 0 15000 1.267 A 48300 D The price was converted using the Bank of Canada exchange rate for March 10, 2020 of C$1.3731 = US $1.00. /s/ Nandini Somayaji, as attorney-in-fact for Denise Karkkainen 2020-03-11