< Previous66 2024 SUSTAINABILITY REPORT 329 HOURS OF DIRECT ENGAGEMENT LOGGED BY TE ESCUCHA MOBILE OFFICES FACILITATING DIALOGUE THROUGH GRAN TIERRA TE ESCUCHA Gran Tierra Te Escucha (Gran Tierra Listens to You) offices continue to be a key component of the Company’s engagement strategy and grievance management system, by serving as accessible spaces for face-to-face dialogue in South America. The professionals managing the Te Escucha offices actively engage in community-based activities, working closely with residents to listen and respond to concerns. mobile Te Escucha offices bring these spaces to remote areas near the Company’s operations in Sucumbíos, Ecuador, ensuring that even residents in hard-to-reach areas have opportunities to interact directly with Company representatives. In Ecuador, enhanced communications channels have made it easier for individuals and communities to reach out, doubling the number of petitions, complaints, and requests (PQRs) received over the previous year. This increase is a positive indicator of open dialogue. STEWARDING THE ENVIRONMENT HEALTH AND SAFETY RESPECTING HUMAN RIGHTS INVESTING IN COMMUNITIES ENGAGING OUR NEIGHBOURS RESPONSIBLE GOVERNANCE INTRODUCTION ECONOMIC DEVELOPMENTENGAGING OUR NEIGHBOURS67 3,030 MEETINGS HELD WITH COMMUNITY STAKEHOLDERS IN 2024 1,819 COLOMBIA 1,211 ECUADOR 100% OF PQRS RESOLVED CHANNELS FOR RECEIVING PQR’S CHANNELCOLOMBIAECUADOR E-mail57120 Offices370242 Designated Employees24557 Telephone06 Mobile Office106 Total1,196331 TYPES OF PQR’S COLOMBIAECUADOR Total PQR's1,196331 Resolved1,196331 In Progress00 Social Investment505190 Labour Practices16540 Social Investment16127 Impacts on Third Parties and Infrastructure 954 Environmental Impact8817 Information Processes1320 Land Access410 Human Rights10 Prior Consultation7N/A Works for Taxes1N/A SecurityN/A3 Facilities/Civil WorksN/A15 LogisticsN/A33 SETTING A NEW STANDARD IN LICENSING In the energy sector, sustainability is often associated with environmental initiatives, social responsibility, and regulatory compliance, but environmental licensing remains a critical yet often overlooked aspect. In Colombia, community engagement and social responsibility have become increasingly important in the licensing process, with social factors now playing a key role. GTE has long prioritized stakeholder consultation at every stage, contributing to its 100% approval rate for environmental license applications since 2019. Beyond meeting compliance requirements, GTE builds trust by working closely with communities, conducting thorough Environmental Impact Assessments (EIAs), and maintaining open dialogue with regulators. The Company also shares insights with industry peers, exchanging knowledge to improve the licensing process across the sector while continuously refining its own approach. We don’t just seek approval on paper—we secure a true licence to operate, one that has integrity and community backing. Our goal is to develop successful projects that benefit the communities, the environment, and the Company. Julián Castro Licensing Manager68 2024 SUSTAINABILITY REPORT RESPONSIBLE GOVERNANCE INDEPENDENT CHAIR LEADS THE BOARD 88.9% INDEPENDENT MEMBERS 22% FEMALE BOARD REPRESENTATION STEWARDING THE ENVIRONMENT HEALTH AND SAFETY RESPECTING HUMAN RIGHTS INVESTING IN COMMUNITIES ENGAGING OUR NEIGHBOURS RESPONSIBLE GOVERNANCE INTRODUCTION ECONOMIC DEVELOPMENTResponsible GoveRnance 69 Going Beyond Compliance is more than just a guiding principle at Gran Tierra Energy; it is how we approach everything we do. When we operate with integrity, everything else—safe operations, strong stakeholder relationships, and profitability—falls into place. Gary Guidry President and Chief Executive Officer Gran Tierra Energy is committed to maintaining a strong culture of ethical business practices. This means the Company, its leadership, and its employees conduct business with integrity, fairness, and a focus on safety, while complying with all applicable laws and regulations in the regions where it operates. Gran Tierra’s governance framework supports transparency, accountability, and alignment with industry best practices, while reinforcing the Company’s commitment to continuous improvement. Whenever possible, the Company voluntarily goes beyond what is legally required to promote sustainable economic growth, protect the environment, and deliver social benefits to the communities where it operates. Gran Tierra regularly identifies, communicates, and addresses risks that are material to its business, and integrates Environmental, Social, and Governance (ESG) criteria into strategic planning and investment decisions. These principles are outlined in a comprehensive set of corporate policies, and employees and contractors receive regular training to ensure awareness and compliance. “ 9 FORMAL BOARD MEETINGS IN 2024 100% OF EMPLOYEES COMPLETED CODE OF BUSINESS AND ETHICS TRAINING IN 2024 100% MEETINGS ATTENDED BY ALL BOARD MEMBERS702024 SUSTAINABILITY REPORT Our governance policies are the foundation of the culture we strive to create at GTE. They establish the framework and tone for how we conduct every aspect of our business. Operating transparently and doing business the right way leads to the best outcomes for all stakeholders. This has been our approach since we began operations in Colombia and Ecuador—and now in Canada. Ryan Ellson Chief Financial Officer, and Executive Vice President, Finance STEWARDING THE ENVIRONMENT HEALTH AND SAFETY RESPECTING HUMAN RIGHTS INVESTING IN COMMUNITIES ENGAGING OUR NEIGHBOURS RESPONSIBLE GOVERNANCE INTRODUCTION ECONOMIC DEVELOPMENTRESPONSIBLE GOvERNANCE71 CORPORATE GOVERNANCE PRINCIPLES AND POLICIES CODE OF CONDUCT POLICY Gran Tierra Energy’s Code of Conduct outlines the Company’s commitment to upholding the highest ethical standards. All employees must adhere to the Code and complete yearly online training to reinforce their knowledge and ensure compliance with its principles. TRANSPARENCY Transparency is fundamental to GTE’s business, reinforcing trust with stakeholders. The Company regularly communi- cates about its operations and governance through publicly available reports and disclosures, including: Financial and operational press releases: grantierra.com/news-releases/press-releases Environmental, Social, and Governance News: grantierra.com/news-releases/esg-news SASB and TCFD Report: grantierra.com/wp-content/up- loads/2024/08/2023-SASB-Report1.pdf Extractive Sector Transparency Measures Act (ESTMA) reports, detailing all payments made to governments: grantierra.com/sustainability/reporting Annual Report on Forced Labour in Canadian Supply Chains: grantierra.com/wp-content/uploads/2024/05/Forced-La- bour-in-Canadian-Supply-Chains-2023-Annual-Report.pdf HUMAN RIGHTS AWARENESS AND TRAINING Respect for Human Rights is a fundamental principle at Gran Tierra Energy. The Company provides formal Human Rights training for its employees and contractors to ensure that Human Rights considerations are embedded in all business activities. In 2024, GTE created an External Human Rights Committee to advise the Company on Human Rights policy development, implementation, and oversight in Ecuador. DIVERSITY Gran Tierra Energy values a diverse workplace and strives to maintain an inclusive work environment. Women comprise 38% of GTE’s workforce, reflecting the Company’s ongoing commitment to diversity. ANTI-CORRUPTION Gran Tierra Energy and its affiliated entities prohibit seeking or receiving any improper advantage in business dealings with government officials. The Company upholds rigorous anti-corruption policies to ensure ethical business practices. ANONYMOUS WHISTLEBLOWER REPORTING Gran Tierra Energy maintains a workplace environment conducive to open discussions regarding business practices. Employees and stakeholders have access to an anonymous whistleblower hotline (EthicsPoint) for reporting concerns, ensuring transparency and accountability. HEALTH, SAFETY, AND ENVIRONMENT BOARD COMMITTEE The Health, Safety, and Environment (HSE) Committee assists the Board in overseeing the management of sus- tainability, ESG, health, safety, and security. This committee plays a crucial role in assessing environmental, safety, and operational risks. ENGAGED BOARD OF DIRECTORS WITH MAJORITY VOTING STANDARD Gran Tierra Energy’s bylaws provide for a majority voting standard in uncontested elections, reinforcing a strong and accountable governance framework.72 2024 SUSTAINABILITY REPORT PERFORMANCE DATA INDICATORUNITS202220232024 ECONOMY Economic Value Generated and Distributed 1 millions of $789.0 748.0 689.6 Payments to Suppliers, Contractors, and Other Third Partiesmillions of $522.0 452.0 490.0 Payments to Governments (Taxes, Royalties)millions of $314.0 274.0 213.8 Payments to Employees (Salaries and Benefits)millions of $20.0 23.0 43.1 Investment in Communitiesmillions of $8.0 11.0 11.4 Payments to Providers of Capital (Debt, Interest, Dividends)millions of $0.0 0.00.0 Social Investmentmillions of $5.1 6.5 7.0 Temporary Local Employmentcontracts 4,578 5,748 5,932 Spending on Suppliers (Colombia + Ecuador + Canada-2 months)millions of $295.6 459.8 528.2 Regional millions of $40.5 103.8 99.7 Country millions of $247.8 353.1 367.7 Internationalmillions of $7.3 2.9 1.5 ENVIRONMENT Total Number of Spill Incidents (Colombia and Ecuador) 2 count 87 59 71 Contained Discharges 2 count 60 55 41 Environmental Incidents 2 count 20 3 9 Oil or Chemical Spills < 1 bbl 2 count7 1 14 Oil or Chemical Spills > 1 bbl 2count007 Spills Caused By Third Parties (Vandalism, Theft, or Tanker Truck Accidents) 2 count089 Volume of Spills 2,4 m³ 11.1 5.0 13.5 Aggregate Quantity of Significant or Reportable Spills 2 m³007.60 Water Withdrawal 2 thousand m³1,150.311,280.271,340.86 Water from Rivers and Creeks 2 thousand m³854.81949.111,070.47 Water Purchased from Third Parties 2 thousand m³276.54311.08251.72 Water from Wells 2thousand m³18.9620.0818.66 Water Discharged 2, 5 thousand m³84.5674.04118.92 Other Water-Related measures Produced Water 3 thousand m³8,918.4111,142.9812,301.70 Water Injected into Active Wells 3 thousand m³8,622.0810,804.1511,071.96 Non-Enterprise Water Consumption (Head Office) thousand m³3.102.994.89 Total Water Consumed 2 thousand m³1,065.751,206.231,221.94 Total GHG Emissions (CO 2 e) 2, 6 metric tonnes CO₂-e 712,494 727,358 723,503 Scope 1 2 metric tonnes CO₂-e 552,838 525,534496,969 Scope 2 2 metric tonnes CO₂-e 159,656 201,824 226,534 Regulatory Compliance Number of Inspections by Authorities 2 count86 64 193 Number of Findings and Non-Compliances 2count6455 Number of Findings that Resulted in Fines or Non-monetary Sanctions 2 count000 Incidents of Non-Compliance with Water Quality or Quantity Permits, Standards, or Regulations 2 count002 STEWARDING THE ENVIRONMENT HEALTH AND SAFETY RESPECTING HUMAN RIGHTS INVESTING IN COMMUNITIES ENGAGING OUR NEIGHBOURS RESPONSIBLE GOVERNANCE INTRODUCTION ECONOMIC DEVELOPMENTPERFORmANCE DATA73 INDICATORUNITS202220232024 Total Waste 2Tonnes 1,880 5,541 11,505 Hazardous Waste (as defined in the Country) 2 Tonnes 1,439 5,226 3,939 Non-Hazardous Waste 2 Tonnes 441 315.23 7,566 Percentage of Non-hazardous Waste Recycled 2 % 36 7 2.83 Percentage of Non-hazardous Waste Incinerated 2 %000.54 Percentage of Non-hazardous Waste Disposed of in Sanitary Landfills 2 %64 93 96.63 Total Energy Derived From Non-renewable Sources 3 kWh 257,075,796 325,070,749 341,341,445 Energy Purchased 3kWh 29,377,750 32,681,004 33,496,170 Total Energy Consumption Within the Organization 3 kWh 286,453,546 357,751,753 374,837,615 Total Energy Consumption That is Derived from Non-renewable Sources (Fossil Fuels) 3 kWh 261,362,010 332,613,525 351,175,921 Total Energy Consumption That Is Derived from Renewable Sources 3 kWh 25,091,536 25,138,228 23,661,694 Percentage of Energy Used That Is Derived from Non-Renewable Sources 3 % 91.2 93.0 93.7 Percentage of Energy Used That Is Derived from Renewable Sources 3 % 8.8 7.0 6.3 Percentage of Consumed Energy from the Grid 3 % 10.3 9.1 8.9 SAFETY Employee and Contractor Safety Lost Time Injury Frequency – Combinedper 200k exposure hrs0.060.000.00 Recordable Injury Frequency – Combined per 200k exposure hrs 0.080.040.03 Recordable Injury Frequency – Employees per 200k exposure hrs 0.080.040.03 Recordable Injury Frequency – Contractorsper 200k exposure hrs0.000.000.00 Lost Time Injury Frequency – Employees per 200k exposure hrs 0.060.000.00 Lost Time Injury Frequency – Contractors per 200k exposure hrs 0.000.000.00 Fatalities – Employeescount000 Fatalities – Contractorscount000 Hours Workedhours10,038,29910,563,15411,440,456 Public Safety and Emergency Preparedness Safety Inspections Conductedcount7,1855,4906,338 Number of Emergency Simulations (Tabletop and In-Person)count408487448 HUMAN RESOURCES Total Number of Employeescount 336 351 431 Femalecount 125 128 165 malecount 211 223 266 Employees in Each Country Colombiacount 235 234 243 Canadacount 96 94 146 Ecuadorcount 5 23 42 Employees Covered by Collective Bargaining Agreements%0 00 Rate of New Employee Hires 2 %11.0 12.0 29.23 Voluntary Turnover Rates 2 % 4.2 4.0 4.41 Total Number of Hours of Training in the Year (Colombia and Ecuador)hours 5,551 8,721 3,04474 2024 SUSTAINABILITY REPORT PERFORMANCE DATA All monetary values are in USD. Figures may differ slightly due to rounding. Please note, certain data points for previous years have been restated as Gran Tierra works to enhance its data collection approach and alignment with leading ESG reporting frameworks. Certain scope, boundaries, definitions, and calculation methods may have been updated and refined. 1. Total includes all Capex, Opex, G&A, acquisitions, taxes and royalties in 2024. 2. Includes Canada, Colombia and Ecuador data for 2024. 3. Includes Colombia and Ecuador data for the entire calendar year 2024. 4. Includes the volumes from all four types of spills except those caused by third parties. 5. No untreated wastewater is discharged. 6. Calculations are made under the Operational Control Boundary. ABOUT GRAN TIERRA ENERGY INC. Gran Tierra Energy Inc., together with its subsidiaries, is a publicly listed diversified exploration and production company, with assets in Canada, Colombia, and Ecuador. GTE is headquartered in Calgary, Canada, incorporated in Delaware, United States, and traded on the NYSE American, the London Stock Exchange and the Toronto Stock Exchange under the ticker symbols GTE. To learn more about Gran Tierra Energy or to subscribe to our mailing list visit: www.grantierra.com INDICATORUNITS202220232024 Average Hours of Training per Year per Employee (Colombia Only)hours/person23.5 36.5 12.02 Average hours of training per year per Employee (Ecuador Only)hours/person2.5 6.13.40 Average Age of Employees (Colombia)years 41 42 43 Average Age of Employees (Canada)years 46 46 46 Average Age of Employees (Ecuador)years 46 37 39 COMMUNITIES AND HUMAN RIGHTS Total Number of Grievances count 1,485 1,461 1,527 Resolved count 1,485 1,461 1,527 In Progress count000 Grievances by Type/Subject Labour Practices count 286 230 205 Environmental Impacts count 105 119 106 Procurement of Goods and Services count 177 165 188 Land Access count 22 30 41 Human Rights count011 Other Causescount 857 916986 Total Number of Active Prior Consultationscount 16 13 6 Total Number of Prior Consultations Concludedcount 7 3 0 Number of Ethnic Communities Consultedcount16 13 6 STEWARDING THE ENVIRONMENT HEALTH AND SAFETY RESPECTING HUMAN RIGHTS INVESTING IN COMMUNITIES ENGAGING OUR NEIGHBOURS RESPONSIBLE GOVERNANCE INTRODUCTION ECONOMIC DEVELOPMENTPERFORmANCE DATA75 SENIOR MANAGEMENT AND BOARD OF DIRECTORS SENIOR MANAGEMENT Gary S. Guidry President and Chief Executive Officer Ryan Ellson Chief Financial Officer and Executive Vice President, Finance Sebastien Morin Chief Operating Officer Phillip Abraham Executive Vice President, Legal and Land Jim Evans Executive Vice President, Corporate Services Mark Hadley Vice President, Asset Management Ron Hands Vice President, Operations Diego Perez-Claramunt Vice President, Corporate HSE and Sustainability, President and Country Manager, Colombia Tim Stephenson Vice President, Business Development Lawrence West Vice President, Exploration Enrique Villalobos President and Country Manager, Ecuador BOARD MEMBERS Gary S. Guidry President and Chief Executive Officer Robert Hodgins Non-Executive Chairman Peter Dey, KC Independent Board Member Evan Hazell Independent Board Member Alison Redford, KC Independent Board Member Ronald W. Royal Independent Board Member Sondra Scott Independent Board Member David Smith Independent Board Member Brooke Wade Independent Board MemberNext >