CES Energy Solutions Corp. — Board/Management Information 2021

Oct 16, 2021

FORM 51-102F3 MATERIAL CHANGE REPORT

Item 1 Name and Address of Company

CES Energy Solutions Corp. (“ CES ” or the “ Company ”) 332 – 6[th] Avenue S.W., Suite 1400 Calgary, Alberta T2P 0B2 Item 2 Date of Material Change October 15, 2021 Item 3 News Release A press release was disseminated by the Company on October 15, 2021 through Cision and was subsequently filed on SEDAR under the Company’s corporate profile at www.sedar.com and on the Company’s website at https://www.cesenergysolutions.com. Item 4 Summary of Material Change The Board has appointed Ken Zinger as President and Chief Executive Officer, effective October 29, 2021. Tom Simons, current President and Chief Executive Officer, will continue in his role until Mr. Zinger assumes this role. Item 5 Full Description of Material Change 5.1 Full Description of Material Change The Board has appointed Ken Zinger as President and Chief Executive Officer, effective October 29, 2021. Tom Simons, Director, President and Chief Executive Officer, will continue in his role until Mr. Zinger assumes the role.

The Board and Mr. Simons collectively agreed that the Company is on a solid operational and financial footing coming out of the recent industry downturn and is ideally positioned to take advantage of emerging opportunities. The transition of Mr. Zinger to the role of President and CEO has been part of the Company and Board’s long-term succession planning and it was the Board’s view that the time was right to implement this transition plan.

Mr. Zinger, currently the Chief Operating Officer and President, Canadian Operations, co-founded the Company with Mr. Simons in 2006, and has been responsible for overseeing all aspects of the Canadian drilling fluids and production chemical businesses. Mr. Zinger has a deep understanding and knowledge of the Company’s operations, having helped grow the business into what it is today through his partnership with Mr. Simons and the other executives over the years. Mr. Zinger will retain his direct leadership role of Canadian Operations in addition to his President and CEO roles and responsibilities. Mr. Zinger is excited to take on this new role as the Company continues to expand its footprint in North America and abroad.

5.2 Disclosure for Restructuring Transactions

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Not applicable. Item 6 Reliance on subsection 7.1(2) of National Instrument 51-102 Not applicable. Item 7 Omitted Information None. Item 8 Executive Officer The name and business number of an executive officer of the Company who is knowledgeable about the material change and this report is:

Anthony Aulicino 403-269-2800 anthony.aulicino@ceslp.ca Item 9 Date of Report October 15, 2021

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