ACT Energy Technologies Ltd. — Audit Report / Information 2023

Aug 18, 2023

CATHEDRAL ENERGY SERVICES LTD.

NOTICE OF CHANGE OF AUDITOR (National Instrument 51-102)

TO: KPMG LLP AND TO: PricewaterhouseCoopers LLP AND TO: Alberta Securities Commission (as Principal Regulator) British Columbia Securities Commission Financial and Consumer Affairs Authority of Saskatchewan The Manitoba Securities Commission Ontario Securities Commission L’Autorité des Marchés Financiers Nova Scotia Securities Commission Financial and Consumer Services Division, Prince Edward Island Office of the Superintendent of Securities Service Newfoundland & Labrador Financial and Consumer Services Commission, New Brunswick

Dear Sirs/Mesdames:

Cathedral Energy Services Ltd. (the " Corporation ") gives the following notice in accordance with Section 4.11 of National Instrument 51-102 Continuous Disclosure Obligations (" NI 51-102 "):

• (a) Effective August 17, 2023, KPMG LLP (the " Former Auditor ") resigned as the auditor of the Corporation at the request of the Corporation;

• (b) The Audit Committee and the Board of Directors of the Corporation accepted the resignation of the Former Auditor;

• (c) The Corporation has appointed PricewaterhouseCoopers LLP (the " Successor Auditor ") as the auditor of the Corporation effective as of August 17, 2023. The appointment of the Successor Auditor was approved by the Audit Committee and the Board of Directors of the Corporation;

• (d) There have been no modified opinions expressed in the Former Auditor's reports on the Corporation's financial statements relating to the "relevant period", as such term is defined in NI 51-102;

• (e) There have been no "reportable events", as such term is defined in NI 51-102.

DATED this 17[th] day of August, 2023.

CATHEDRAL ENERGY SERVICES LTD.

Per: Signed “Tom Connors”

• Thomas Connors

• President, Chief Executive Officer and Director