DRTTF · Dirtt Environmental Solutions Ltd

On May 11, 2026, the reporting person was granted 150,000 restricted share units ("RSUs") which cliff vested on July 2, 2026. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one 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. The 150,000 RSUs vested on July 2, 2026 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On May 11, 2026, the reporting person was granted 150,000 restricted share units ("RSUs") which cliff vested on July 2, 2026. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one 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. The 150,000 RSUs vested on July 2, 2026 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.71, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 29, 2026. The price was converted using the Bank of Canada exchange rate for June 29, 2026 of C$1.4206 = US$1.00.

The price used to calculate the June 7 RSU vesting was C$0.72, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 8, 2026. The price was converted using the Bank of Canada exchange rate for June 8, 2026 of C$1.3947= US$1.00.

The price used to calculate the June 7 RSU vesting was C$0.72, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 8, 2026. The price was converted using the Bank of Canada exchange rate for June 8, 2026 of C$1.3947= US$1.00.

The price used to calculate the June 7 RSU vesting was C$0.72, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 8, 2026. The price was converted using the Bank of Canada exchange rate for June 8, 2026 of C$1.3947= US$1.00.

On June 7, 2023, the reporting person was granted 375,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on June 8, 2026 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

The price used to calculate the June 7 RSU vesting was C$0.72, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on June 8, 2026. The price was converted using the Bank of Canada exchange rate for June 8, 2026 of C$1.3947= US$1.00.

On June 7, 2023, the reporting person was granted 75,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on June 8, 2026 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On May 11, 2026, the reporting person was granted 150,000 restricted share units ("RSUs") which will cliff vest on July 1, 2026. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one 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.

The price used to calculate the May 11 RSU vesting was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on May 11, 2026. The price was converted using the Bank of Canada exchange rate for May 11, 2026 of C$1.3667= US$1.00

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.77, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on March 30, 2026. The price was converted using the Bank of Canada exchange rate for March 30, 2026 of C$1.3926 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.90, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on December 30, 2025. The price was converted using the Bank of Canada exchange rate for December 30, 2025 of C$1.3693 = US$1.00.

On November 26, 2025, the reporting person was granted 200,000 restricted share units ("RSUs") which vested immediately. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one 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.

The price used to calculate the November 26 RSU vesting was C$1.01, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on November 25, 2025. The price was converted using the Bank of Canada exchange rate for November 25, 2025 of C$1.4104= US$1.00

On November 26, 2025, the reporting person was granted 200,000 restricted share units ("RSUs") which vested immediately. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one 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.

The price used to calculate the November 26 RSU vesting was C$1.01, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on November 25, 2025. The price was converted using the Bank of Canada exchange rate for November 25, 2025 of C$1.4104= US$1.00

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.80, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on September 26, 2025. The price was converted using the Bank of Canada exchange rate for September 26, 2025 of C$1.3941 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.80, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on September 26, 2025. The price was converted using the Bank of Canada exchange rate for September 26, 2025 of C$1.3941 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.80, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on September 26, 2025. The price was converted using the Bank of Canada exchange rate for September 26, 2025 of C$1.3941 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.80, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on September 26, 2025. The price was converted using the Bank of Canada exchange rate for September 26, 2025 of C$1.3941 = US$1.00.

Each deferred share unit ("DSU") was granted pursuant to the DIRTT Environmental Solutions Ltd. Third Amended and Restated Long Term Incentive Plan and is the economic equivalent of one common share (a "Common Share") of DIRTT Environmental Solutions Ltd. (the "Issuer"). All DSUs settle following the cessation of service and employment with the Issuer (the "Termination Date"). For directors who are subject to taxation in the United States ("US Directors"), the DSUs will settle no later than forty days following the Termination Date. Each DSU will be settled in one Common Share or in the cash equivalent of such Common Shares, calculated based on the closing price of the Common Shares on the day prior to the 30th day following separation from service for US Directors.

The price used to calculate the number of DSUs granted was C$0.80, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on September 26, 2025. The price was converted using the Bank of Canada exchange rate for September 26, 2025 of C$1.3941 = US$1.00.

The 590,882 deferred share units ("DSUs") granted pursuant to the DIRTT Environmental Solutions Ltd. Second Amended and Restated Long Term Incentive Plan or its predecessor plan were settled in common shares ("Common Shares") of DIRTT Environmental Solutions Ltd. (the "Issuer") on a one-for-one basis. The 182,144 DSUs granted pursuant to the Deferred Share Unit Plan for Non-Employee Directors were settled in cash equal to the closing price of one Common Share on August 28, 2025 for each DSU, as reported on the Toronto Stock Exchange.

The 590,882 deferred share units ("DSUs") granted pursuant to the DIRTT Environmental Solutions Ltd. Second Amended and Restated Long Term Incentive Plan or its predecessor plan were settled in common shares ("Common Shares") of DIRTT Environmental Solutions Ltd. (the "Issuer") on a one-for-one basis. The 182,144 DSUs granted pursuant to the Deferred Share Unit Plan for Non-Employee Directors were settled in cash equal to the closing price of one Common Share on August 28, 2025 for each DSU, as reported on the Toronto Stock Exchange.

On August 14, 2024, the reporting person was granted 300,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

The price used to calculate the August 14 RSU vesting was C$0.78, which was the closing price Issuer's Common Shares as reported on the Toronto Stock Exchange on August 13, 2025. The price was converted using the Bank of Canada exchange rate for August 13, 2025 of C$1.3767 = US$1.00.

The Form 4 previously filed on June 10, 2025 inadvertently reported the incorrect total and the total stated here reflects the corrected amount.

On August 14, 2025, the reporting person was granted 300,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On August 14, 2024, the reporting person was granted 300,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On August 14, 2024, the reporting person was granted 375,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On August 14, 2024, the reporting person was granted 375,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.

On August 14, 2025, the reporting person was granted 300,000 RSUs, vesting in three equal annual installments beginning on the first anniversary of the grant date. Each RSU represents a conditional right to receive a cash payment equal to the fair market value of one Common Share of the Issuer 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. One-third of the RSUs vested on August 14, 2025 and were converted into Common Stock on a one-to-one basis at the Issuer's discretion.