Climate Change Data

OSISKO MINING INC.

Climate Impact & Sustainability Data (2016, 2017, 2019, 2020, 2021, 2023)

Reporting Period: 2016

Environmental Metrics

ESG Focus Areas

  • Health & Safety
  • Society
  • Environment
  • Economy

Environmental Achievements

  • Remediated 177,300 m2 of drill pads at Windfall Lake Project and 26,250 m2 at Garrison Project.
  • Implemented a Spill Management Plan with four reportable spills in 2016 (all cleaned).

Social Achievements

  • Hired First Nations community members to work on exploration campaigns in Quebec and Ontario.
  • Maintained open communication with Aboriginal and local communities through meetings, presentations, and notification letters.
  • Provided $326,662 in contracts and purchases from Aboriginal businesses.

Governance Achievements

  • Osisko’s Board of Directors approved a set of corporate governance guidelines and a Code of Business Conduct and Ethics.
  • Established committees including Audit Committee, Corporate Governance & Nominating Committee, Compensation Committee, and Health, Safety and Environment & Corporate Social Responsibility Committee.

Climate Goals & Targets

Environmental Challenges

  • Potential impacts of exploration activities on the environment, cultural heritage, and traditional activities of Aboriginal communities.
  • Managing potential spills and environmental incidents.
Mitigation Strategies
  • Environmental baseline data collection and assessment at Windfall Lake and Marban projects.
  • Implementation of Spill Management Plan.
  • Ongoing dialogue with host communities to address concerns.
  • Hiring of community members and engagement with Aboriginal communities.

Supply Chain Management

Responsible Procurement
  • 89% of purchases in Quebec and Ontario in 2016
  • Over $326,662 spent on goods and services from First Nations, local suppliers, and contractors

Climate-Related Risks & Opportunities

Awards & Recognition

  • Best North American Exploration Mining Company of the Year
  • Mining Journal’s 2016 Lifetime Achievement Award (Ned Goodman)

Reporting Period: 2017

Environmental Metrics

Water Consumption:71,144 m3/year (Windfall Lake)

ESG Focus Areas

  • Health & Safety
  • Society
  • Environment
  • Economy

Environmental Achievements

  • Implemented spill management plan
  • Conducted drill pad reclamation
  • Received government approval for a mine water treatment system and dewatered the exploration ramp
  • Updated the site restoration plan
  • Filed the project description with the federal government and the preliminary project notification with the Québec government for the Windfall Lake Project
  • 71,144 m3 of water treated at the Windfall Lake Project

Social Achievements

  • Established donation and sponsorship guidelines
  • Focused on hiring employees from local communities and utilizing local contractors with Aboriginal joint venture partnerships
  • Held more than 65 meetings in host communities
  • Appointed Amy Satov to the Board of Directors to promote diversity
  • More than 92 First Nation people worked at Osisko Mining’s projects at peak activity
  • Provided five student internships and 12 summer jobs

Governance Achievements

  • Developed and implemented an occupational health and safety management system
  • Approved corporate governance guidelines
  • Adopted a code of ethics

Climate Goals & Targets

Environmental Challenges

  • Spills (79 in 2017)
  • Non-conformities with water quality (2 in 2017)
Mitigation Strategies
  • Spill management plan with employee training and spill kits
  • Prompt reporting and remediation of spills
  • Installation of warning signs, disinfection, and corrective actions for water quality issues

Supply Chain Management

Responsible Procurement
  • Utilizing local contractors and Aboriginal joint venture partnerships

Climate-Related Risks & Opportunities

Awards & Recognition

  • Québec Mining Exploration Association’s Discovery of the Year award
  • 2017 Exploration Award North America from Mines and Money Americas

Reporting Period: 2019

Environmental Metrics

Total Carbon Emissions:22,194 tCO2e
Water Consumption:698,579 m3

ESG Focus Areas

  • Health and Safety
  • Environment
  • Community Relations
  • Workforce Development
  • Economic Development

Environmental Achievements

  • Added an air-stripping unit to improve water treatment
  • Began calculating greenhouse gas (GHG) emissions
  • Added a new waste compactor to reduce GHG emissions through minimizing transportation
  • Updated Closure plan and financial assurance

Social Achievements

  • Reduced injury frequency rates year over year despite an increase in work hours
  • Increased training and completed risk assessments on Windfall job positions
  • Established a Windfall Environmental Monitoring Committee to share environmental information with the Cree First Nation of Waswanipi
  • Developed an action plan to address the “Calls for Justice for Extractive and Development Industries” from the National Inquiry into Missing and Murdered Indigenous Women and Girls
  • 83% of purchases were in Québec and Ontario, including $40 million with First Nations-owned businesses and joint ventures
  • 20% of our workforce at Windfall are First Nations

Governance Achievements

  • Osisko Mining’s Corporate Governance practices comply with those set out by the Canadian Securities Administrators
  • Set an objective of 40% representation of women on the Board of Directors by December 31, 2021

Climate Goals & Targets

Environmental Challenges

  • Maintaining a drug and alcohol free environment on the Windfall Camp road
  • Controlling the levels of ammoniacal nitrogen in the ramp water and in the contact water from the lined stockpile
  • Rehabilitating areas impacted by drilling activities due to intense infill drilling
  • Managing stakeholder expectations during the exploration stage of the Windfall Project
Mitigation Strategies
  • Working with contractors to maintain and enforce a zero drug and alcohol policy
  • Commissioning an air stripping unit to improve reduction of ammoniacal nitrogen concentrations in the effluent
  • Applying and improving environmental management programs
  • Providing real benefits for host communities and planning for future socio-economic prosperity
  • Studying the calls for action included in the National Inquiry into Missing and Murdered Indigenous Women and Girls final report

Supply Chain Management

Responsible Procurement
  • 83% of purchases in Québec and Ontario
  • $40 million with First Nations-owned businesses and joint ventures

Climate-Related Risks & Opportunities

Reporting Period: 2020

Environmental Metrics

Total Carbon Emissions:19,459 tCO2e/year
Scope 1 Emissions:19,459 tCO2e/year
Water Consumption:735,999 m3/year

ESG Focus Areas

  • Health & Safety
  • Human Resources
  • Environment
  • Community Relations
  • Governance

Environmental Achievements

  • Partial reclamation of 17,800 m2 of impacted areas
  • 376,844 m3 of water treated and returned to the environment
  • Construction of a new collecting pond to improve management of contact and mine water
  • 0 non-compliance for effluent
  • 29,115 kg of food waste composted
  • 11,625 kg of cardboard composted
  • Removal (reclamation) of the unlined stockpile (45,500 tonnes)

Social Achievements

  • Lowered the loss time incident frequency rate (LTIFR) by 20%
  • No work-related fatality at Windfall since 2016
  • Implemented a COVID-19 testing laboratory at Windfall, performing over 9,400 tests
  • Introduced a new Health & Safety Policy and updated operating procedures
  • Introduced a new Community Relations Policy
  • Recognized by the Cree Nation Government as a “role model for natural resource development”
  • Won the Mercure award in the Desjardins Sustainable Development Strategy category

Governance Achievements

  • Revised four main policies (H&S, HR, Environment, Community Relations)
  • Improved information available on the company website
  • Received an “A” level rating by MSCI
  • 30% women on the Board of Directors

Climate Goals & Targets

Environmental Challenges

  • COVID-19 pandemic and its impact on operations and workforce
  • Controlling ammoniacal nitrogen levels in ramp and stockpile water
  • Workforce scarcity in the region
  • Unconscious bias in hiring First Nation core cutters
Mitigation Strategies
  • Developed and implemented COVID-19 prevention protocols in collaboration with Cree communities
  • Invested in a COVID-19 testing laboratory to secure exemption from self-isolation law
  • Developed alternative sourcing strategies
  • Reviewed posting and selection criteria to address unconscious bias in hiring
  • Engaged with regional committees to address workforce scarcity
  • Implemented the ECOTHORTM technology to reduce ammoniacal nitrogen

Supply Chain Management

Responsible Procurement
  • Favouring local purchases and contracts
  • Targeted opportunities for local and First Nation businesses
  • Development of a local procurement program (planned for 2021)

Climate-Related Risks & Opportunities

Awards & Recognition

  • Mercure award in the Desjardins Sustainable Development Strategy category

Reporting Period: 2021

Environmental Metrics

Total Carbon Emissions:27,991 t CO2 eq.
Scope 1 Emissions:27,991 t CO2 eq.
Water Consumption:932,479 m3

ESG Focus Areas

  • Health and Safety
  • Human Resources
  • Environmental
  • Community Relations
  • Responsible Procurement
  • Governance

Environmental Achievements

  • 423,323 m3 of water treated and returned to the environment
  • 0 non-compliance for effluent
  • 30,300 kg of food waste and 12,000 kg of cardboard composted
  • Partial reclamation of surface areas used for drilling

Social Achievements

  • 21,049 COVID-19 tests performed, ensuring worker safety
  • 0 fatalities
  • $85 million spent with First Nations businesses or joint ventures
  • $240,000 contributed to various donations and sponsorships
  • 120 First Nations people worked at Windfall
  • 50% of the senior management team are women or gender queer

Governance Achievements

  • Approved a Responsible Procurement policy and a Supplier Code of Conduct
  • MSCI sustainability rating of A
  • No non-compliances found in five CNESST audits

Climate Goals & Targets

Environmental Challenges

  • COVID-19 pandemic impacting operations and community engagement
  • Increased Health & Safety incident frequency rates
  • Scarcity of skilled labor in northern communities
  • Managing ammoniacal nitrogen levels in water
  • Climate change impacts on infrastructure design
Mitigation Strategies
  • Implemented mandatory vaccination policy and COVID-19 testing protocols (21,049 tests)
  • Revised introductory site sessions for safety training
  • Initiated a program for the management and qualification of contractors
  • Developed actions to increase employee retention (exit interviews)
  • Installed a new ammoniacal nitrogen evaporation unit and other water treatment improvements
  • Installed a weather station at the Windfall site to support design efforts

Supply Chain Management

Responsible Procurement
  • Responsible Procurement Policy
  • Supplier Code of Conduct
  • Prioritizing local and First Nations businesses ($85 million spent)

Climate-Related Risks & Opportunities

Physical Risks
  • Extreme weather
Opportunities
  • Development of energy-efficient products
  • Connection to provincial hydroelectric grid

Awards & Recognition

  • 2021 Mercure award in the Desjardins Sustainable Development Strategy category
  • 2021 Indigenous and Community relations Award of the Mining Magazine

Reporting Period: 2023

Environmental Metrics

ESG Focus Areas

  • Environmental
  • Social
  • Governance

Environmental Achievements

  • Switching from diesel-generated electricity to hydroelectricity at the Windfall Project, significantly reducing power costs and greenhouse gas emissions.

Social Achievements

  • Signed a definitive agreement with Miyuukaa Corp. for the construction of a transmission line and transportation of hydroelectric power to the Windfall Project.
  • Lodged over 100 firefighters from the Quebec fire-fighting agency at the Windfall camp to support provincial fire-fighting efforts.

Governance Achievements

  • TSX approved the Corporation's notice of intention to make a normal course issuer bid (NCIB Program).

Climate Goals & Targets

Environmental Challenges

  • Forest fires in the Abitibi and Eeyou Istchee James Bay regions resulted in a slowdown of drilling activities.
Mitigation Strategies
  • Osisko and the Partnership withdrew their employees until it was deemed safe to return to normal levels of activity.
  • The Corporation resumed underground drilling activities and increased all other regular site activities back to normal levels as the local fire situation improved.

Supply Chain Management

Climate-Related Risks & Opportunities