X0206 3 2019-10-08 0 0001340476 DIRTT ENVIRONMENTAL SOLUTIONS LTD DRTT 0001788773 Calkins Jeffrey 7303 30TH STREET S.E. CALGARY A0 T2C 1N6 ALBERTA, CANADA 0 1 0 0 See Remarks Director and Employee Stock Option (right to buy) 5.92 2024-05-16 Common Shares 99767 D The option, representing a right to purchase a total of 99,767 shares, becomes exercisable as to 33,256 shares on May 17, 2020, with the remainder to vest in two equal annual installments thereafter, subject to continued service through each vesting date. The exercise price of the option of CAD$7.84 is converted to USD based on the daily average exchange rate as reported by the H.10 statistical release of the Board of Governors of the Federal Reserve System on September 27, 2019 of C$1.3250 = US$1.00. Senior Vice President, Chief Operating Officer. See attached for Exhibit 24 - Power of Attorney /s/ Nandini Somayaji, as attorney-in-fact for Jeffrey A. Calkins 2019-10-08