STATEMENT UNDER THE ACT RESPECTING TRANSPARENCY MEASURES IN THE MINING, OIL AND GAS INDUSTRIES (s.1) Fiscal year covered by the statement: from January 1, 2020 to December 31, 2020 Name of the entity filing the statement: Suncor Energy Inc. Name(s) of the subsidiary or subsidiaries for which the entity files the statement, where applicable: Petro-Canada Terra Nova Partnership; Petro-Canada Hibernia Partnership; Petro-Canada Hebron Partnership; Canadian Oil Sands Partnership; Suncor Energy Oil Sands Limited Partnership; Suncor Energy Offshore Exploration Partnership; Suncor Energy Ventures Partnership CERTIFICATE I certify that I have examined the information contained in the statement of Suncor Energy Inc. for the fiscal year that began on January 1, 2020 and ended on December 31, 2020 . To my knowledge and having exercised due diligence, the information contained in the statement is, in all material respects for the purposes of the Act, true, accurate and complete. Full name of the officer or director: Alister Cowan Title of position: Chief Financial Officer Date: May 20, 2021 "Alister Cowan" [Signature]

Reporting Entity Name Reporting Year From 1/1/2020 To: 12/31/2020 Date submitted 5/20/2021 Other Subsidiaries Included (optional field) For Consolidated Reports - Subsidiary Reporting Entities Included in Report: Not Substituted Attestation by Reporting Entity Full Name of Director or Officer of Reporting Entity Position Title Date Alister Cowan Chief Financial Officer 5/20/2021 Extractive Sector Transparency Measures Act - Annual Report Petro-Canada Terra Nova Partnership: E368056, Petro-Canada Hibernia Partnership: E014222, Petro-Canada Hebron Partnership: E294659, Canadian Oil Sands Partnership: E984046, Suncor Energy Oil Sands Limited Partnership: E761283, Suncor Energy Offshore Exploration Partnership: E718793, Suncor Energy Ventures Partnership: E895970 In accordance with the requirements of the ESTMA, and in particular section 9 thereof, I attest I have reviewed the information contained in the ESTMA report for the entity(ies) listed above. Based on my knowledge, and having exercised reasonable diligence, the information in the ESTMA report is true, accurate and complete in all material respects for the purposes of the Act, for the reporting year listed above. Reporting Entity ESTMA Identification Number E405435 Suncor Energy Inc. Amended Report Original Submission

Reporting Year From: 1/1/2020 To: 12/31/2020 Reporting Entity Name Currency of the Report Reporting Entity ESTMA Identification Number Subsidiary Reporting Entities (if necessary) Country Payee Name Departments, Agency, etc… within Payee that Received Payments2 Taxes Royalties Fees Production Entitlements Bonuses Dividends Infrastructure Improvement Payments Total Amount paid to Payee Notes Canada Government of Canada 584,240,000 69,710,000 780,000 - - - - 654,730,000 Includes royalties that are remitted directly to the Canadian federal government that are then sent to the Government of Newfoundland and Labrador for the Terra Nova, White Rose, Hebron and Hibernia Extension projects. Canada Canada Newfoundland and Labrador Offshore Petroleum Board - - 4,550,000 - - - - 4,550,000 Canada -Alberta Athabasca Chipewyan First Nation - - 4,960,000 - - - - 4,960,000 Canada -Alberta Fort Chipewyan Metis Local 125 - - 1,650,000 - - - - 1,650,000 Canada -Alberta Fort McKay First Nation - - 1,210,000 - - - - 1,210,000 Canada -Alberta Fort McKay Metis Community Association - - 2,550,000 - - - - 2,550,000 Canada -Alberta Fort McMurray #468 First Nation - - 900,000 - - - - 900,000 Canada -Alberta Fort McMurray Metis Local 1935 - - 2,380,000 - - - - 2,380,000 Canada -Alberta Government of Alberta 212,000,000 54,670,000 21,790,000 - - - - 288,460,000 Canada -Alberta Mikisew Cree First Nation - - 560,000 - - - - 560,000 Canada -Alberta Municipality of Wood Buffalo (Alberta) 49,220,000 - 170,000 - - - - 49,390,000 Canada -Alberta Chipewyan Prairie First Nation - - 1,150,000 - - - - 1,150,000 Canada -Alberta Willow Lake Metis Association - - 280,000 - - - - 280,000 Canada -Alberta Conklin Metis Local #193 - - 430,000 - - - - 430,000 Canada -Newfoundland and Labrador Government of Newfoundland and Labrador - 85,670,000 - - - - - 85,670,000 Includes royalties paid in relation to the Hibernia Base project. Canada -Quebec Government of Quebec 22,800,000 - - - - - - 22,800,000 Libya Government of Libya National Oil Corporation - 50,000,000 - - 1,990,000 - - 51,990,000 Bonuses include social development payments as required by certain Exploration and Production Sharing Agreements in Libya. Taxes & Royalties taken in kind and converted to cash basis using the same methodology (fair market value) as Suncor Energy Inc.'s 2020 consolidated financial statements. Translated using the financial year average foreign exchange rates: 1 USD : 1.3413 CAD. Norway Government of Norway - - 130,000 - - - - 130,000 Translated using the financial year average foreign exchange rate: 1 NOK : 0.1426 CAD. United Kingdom of Great Britain and Northern Ireland Her Majesty’s Government Her Majesty's Revenue and Customs Cumbernauld 183,240,000 - - - - - - 183,240,000 Translated using the financial year average foreign exchange rate: 1 GBP : 1.7206 CAD. Additional Notes: Extractive Sector Transparency Measures Act - Annual Report Suncor Energy Inc. CAD E405435 Petro-Canada Terra Nova Partnership: E368056, Petro-Canada Hibernia Partnership: E014222, Petro-Canada Hebron Partnership: E294659, Canadian Oil Sands Partnership: E984046, Suncor Energy Oil Sands Limited Partnership: E761283, Suncor Energy Offshore Exploration Partnership: E718793, Suncor Energy Ventures Partnership: E895970 Payments by Payee - All payments are reported in Canadian dollars. - All amounts have been rounded to the nearest $10,000 CAD.

Reporting Year From: 1/1/2020 To: 12/31/2020 Reporting Entity Name Currency of the Report Reporting Entity ESTMA Identification Number Subsidiary Reporting Entities (if necessary) Country Project Name Taxes Royalties Fees Production Entitlements Bonuses Dividends Infrastructure Improvement Payments Total Amount paid by Project Notes Canada -Alberta Base Mine 19,450,000 27,480,000 10,010,000 - - - - 56,940,000 Canada -Alberta Firebag 26,720,000 22,340,000 2,850,000 - - - - 51,910,000 Canada -Alberta MacKay River 3,010,000 4,850,000 2,720,000 - - - - 10,580,000 Canada -Newfoundland and Labrador Hebron - 5,500,000 - - - - - 5,500,000 Canada -Newfoundland and Labrador Hibernia - 137,030,000 - - - - - 137,030,000 Hibernia Base and Extension projects have been combined for the purposes of this report. Canada -Newfoundland and Labrador Terra Nova - 3,720,000 4,640,000 - - - - 8,360,000 Canada -Newfoundland and Labrador White Rose - 9,130,000 - - - - - 9,130,000 Norway Norway - - 130,000 - - - - 130,000 Translated using the financial year average foreign exchange rate: 1 NOK : 0.1426 CAD. Libya Libya - 50,000,000 - - 1,990,000 - - 51,990,000 Bonuses include social development payments as required by certain Exploration and Production Sharing Agreements in Libya. Taxes & Royalties taken in kind and converted to cash basis using the same methodology (fair market value) as Suncor Energy Inc.'s 2020 consolidated financial statements. Translated using the financial year average foreign exchange rates: 1 USD : 1.3413 CAD. United Kingdom of Great Britain and Northern Ireland U.K. Oil & Gas Taxes 183,240,000 - - - - - - 183,240,000 Translated using the financial year average foreign exchange rate: 1 GBP : 1.7206 CAD. Canada Other 40,000 - 17,170,000 - - - - 17,210,000 Includes Emerging properties in the Oil Sands business unit (Meadow Creek, Lewis, Frontier, Chard, Polaris, Stoney Mountain and Thornbury) and North America Onshore in the Exploration and Production business unit. Additional Notes: Payments by Project - All payments are reported in Canadian dollars. - All amounts have been rounded to the nearest $10,000 CAD. Petro-Canada Terra Nova Partnership: E368056, Petro-Canada Hibernia Partnership: E014222, Petro-Canada Hebron Partnership: E294659, Canadian Oil Sands Partnership: E984046, Suncor Energy Oil Sands Limited Partnership: E761283, Suncor Energy Offshore Exploration Partnership: E718793, Suncor Energy Ventures Partnership: E895970 Extractive Sector Transparency Measures Act - Annual Report Suncor Energy Inc. CAD E405435