Dundee Sustainable Technologies Inc. — Board/Management Information 2021

Apr 1, 2021

Form 51-102F3 MATERIAL CHANGE REPORT

Section 7.1 of National Instrument 51-102 Continuous Disclosure Obligations

Item 1 Name and Address of Company Dundee Sustainable Technologies Inc. (the “ Company ” or “ DST ”) 2000 Peel Street, Suite 860 Montreal, Quebec H3A 2W5

• Item 2 Date of Material Change

March 31, 2021

• Item 3 News Release

DST issued a press release with respect to the material change described below on April 1, 2021 via GlobeNewswire. See attached.

• Item 4 Summary of Material Change

  • Mr. Brian Howlett ceased to be a director of the Company.

• Item 5 Full Description of Material Change Mr. Brian Howlett ceased to be a director of the Company as reported in the attached press release.

• Item 6 Reliance on subsection 7.1(2) of National Instrument 51-102

This report is not being filed on a confidential basis.

• Item 7 Omitted Information

No information has been omitted.

• Item 8 Executive Officer

The following is the name and business telephone number of an executive officer of the Company who is knowledgeable about the material change and this report.

Patricia Osorio Corporate Secretary (514) 866.6001 ext. 244

Item 9 Date of Report

April 1, 2021