Climate Change Data

Excelsior Mining Corp.

Climate Impact & Sustainability Data (2018, 2019, 2022, 2023, 2023-04, 2024, 2024-09)

Reporting Period: 2018

Environmental Metrics

ESG Focus Areas

  • Environmental
  • Social
  • Governance

Environmental Achievements

  • Low water consumption
  • No groundwater contamination
  • Minimal noise, dust, and emissions
  • Fully permitted project with efficient permitting process due to remote location, low water use, and lack of biodiversity or cultural issues

Social Achievements

  • Seasoned management team with extensive experience
  • Community engagement (implied through mention of Arizona's mining-friendly environment and local employment)

Governance Achievements

  • Experienced Board of Directors with expertise in mining, finance, and public policy
  • Transparent reporting (through SEDAR filings)

Climate Goals & Targets

Environmental Challenges

  • Risks inherent in exploration and development of mineral deposits (changes in project parameters, variations in mineral resources and reserves, access to infrastructure, commodity price changes, competition, global financial conditions, uncertainties in mineral resource estimation, access and supply risks, reliance on key personnel, operational risks, regulatory risks, financing risks, title disputes, environmental risks)
  • Permitting process (although ultimately successful)
Mitigation Strategies
  • Experienced management team with expertise in navigating these challenges
  • Detailed feasibility study to mitigate risks
  • Proactive engagement with regulators

Supply Chain Management

Climate-Related Risks & Opportunities

Reporting Period: 2019

Environmental Metrics

Total Carbon Emissions:Not disclosed
Scope 1 Emissions:Not disclosed
Scope 2 Emissions:Not disclosed
Scope 3 Emissions:Not disclosed
Renewable Energy Share:Not disclosed
Total Energy Consumption:Not disclosed
Water Consumption:Not disclosed
Waste Generated:Not disclosed
Carbon Intensity:Not disclosed

ESG Focus Areas

  • Environmental
  • Social
  • Governance

Environmental Achievements

  • Lower operating costs (no earth moving), Lower capital costs (no mining fleet), Flexible mine plan, Environmentally friendly, Low water consumption, No groundwater contamination, Excellent mine closure, Minimal noise, dust, and emissions

Social Achievements

  • Not disclosed

Governance Achievements

  • Not disclosed

Climate Goals & Targets

Long-term Goals:
  • Not disclosed
Medium-term Goals:
  • Not disclosed
Short-term Goals:
  • First Copper Production Q4/2019

Environmental Challenges

  • Not disclosed
Mitigation Strategies
  • Not disclosed

Supply Chain Management

Supplier Audits: Not disclosed

Responsible Procurement
  • Not disclosed

Climate-Related Risks & Opportunities

Physical Risks
  • Not disclosed
Transition Risks
  • Not disclosed
Opportunities
  • Not disclosed

Reporting Standards

Frameworks Used: Null

Certifications: Null

Third-party Assurance: Not disclosed

UN Sustainable Development Goals

  • Not disclosed

Not disclosed

Sustainable Products & Innovation

  • Not disclosed

Awards & Recognition

  • Not disclosed

Reporting Period: 2022

Environmental Metrics

Total Carbon Emissions:insignificant
Water Consumption:negligible compared to other conventional mining operations

ESG Focus Areas

  • Environment
  • Social
  • Governance

Environmental Achievements

  • The Gunnison Copper Project is the world’s most environmentally friendly base metal mining project. In-situ copper mining recycles water, consumes less water, and generates no significant dust, air, or noise pollution. Excelsior’s carbon emissions are insignificant.
  • Excelsior’s mine closure plan for Gunnison combines industry-leading sustainability and environmental stewardship. In-situ mining does not permanently scar the natural landscape.

Social Achievements

  • Gunnison’s environmental attributes are a key reason the project has enjoyed strong community support from inception. Excelsior has engaged with local communities for over a decade, prioritizing employee health & safety protocols, consistent community engagement, and transparency with local stakeholders.
  • Excelsior participates in community support through donations and is a member of the Southeast Arizona Economic Development Group (SAEDG).

Governance Achievements

  • Appointed Fred DuVal as Independent Chair of the Board of Directors.
  • Restructured its Compensation Committee, Corporate Governance and Nominating Committee to consist entirely of independent directors.

Climate Goals & Targets

Medium-term Goals:
  • Achieve sustained production rate of 25 million pounds of copper per year at Gunnison.
Short-term Goals:
  • Restart mining operations at JCM in 2023.

Environmental Challenges

  • Declining flow rates in the Gunnison wellfield due to carbon dioxide buildup.
  • Delays in ramping up to nameplate production at Gunnison.
  • Litigation related to the 2021 Offering prospectus.
Mitigation Strategies
  • Implementing wellfield optimization programs, including well stimulation trials (pending EPA approval).
  • Investigating alternatives to using water as a flushing agent and exploring well stimulation.
  • Vigorously defending the litigation.

Supply Chain Management

Climate-Related Risks & Opportunities

Physical Risks
  • Drought
  • Flooding
  • Extreme weather events
Transition Risks
  • Climate change legislation and treaties

Reporting Standards

Frameworks Used: NI 43-101

Reporting Period: 2023

Environmental Metrics

ESG Focus Areas

  • Environmental
  • Social
  • Governance

Environmental Achievements

  • Low cost, environmentally-friendly "green" operation in Arizona
  • Major copper mining facility in the making
  • Projects are strategically located outside urban areas, making permitting favorable

Social Achievements

  • Experienced Management and Technical teams
  • LTI free operation with > 3,400 days

Governance Achievements

  • Top-tier mining players in the capital structure, supporting growth
  • Significant Permitting Track-Record

Climate Goals & Targets

Long-term Goals:
  • 24-year LOM, staged to 125M lbs/yr (57Kt) for Gunnison
  • 7-year mine life for Strong & Harris
Medium-term Goals:
  • Complete well stimulation trials (ISL)
  • Commercial discussion with Nuton and potential deal
  • Results of well stimulation trials (ISL)
  • Complete column testing (Nuton)
Short-term Goals:
  • Complete feasibility study (Gunnison)
  • Commence column testing (Nuton)
  • Finance & construction for JCM (Capital based on Nuton deal)
  • Mobilize team for well stimulation trials (ISL)

Environmental Challenges

  • Production issues & COVID (2020)
  • Permitting process and permitting risk
Mitigation Strategies
  • First Cu sales & Financing (2021)
  • Well Stimulation (Gunnison)
  • Collaboration with Nuton (Rio Tinto)

Supply Chain Management

Climate-Related Risks & Opportunities

Reporting Period: 2023-04

Environmental Metrics

Total Carbon Emissions:Not disclosed
Scope 1 Emissions:Not disclosed
Scope 2 Emissions:Not disclosed
Scope 3 Emissions:Not disclosed
Renewable Energy Share:Not disclosed
Total Energy Consumption:Not disclosed
Water Consumption:Not disclosed
Waste Generated:Not disclosed
Carbon Intensity:Not disclosed

ESG Focus Areas

  • In-Situ Recovery (ISR) mining for superior financial & ESG metrics

Environmental Achievements

  • Not disclosed

Social Achievements

  • Experienced operators (>3,400 LTI free) at Johnson Camp Mine

Governance Achievements

  • Not disclosed

Climate Goals & Targets

Long-term Goals:
  • Developing a long-live, multi-asset, mining camp in Arizona
Medium-term Goals:
  • Progress ISR and investigate alternative mining methods at Gunnison
  • Potential commercial agreement leading to production at JCM
Short-term Goals:
  • Well Stimulation Permitting ~Q2 2023, trials thereafter at Gunnison
  • Nuton Collaboration: mineralogy & modelling Q2, column tests Q3 at JCM

Environmental Challenges

  • Not disclosed
Mitigation Strategies
  • Not disclosed

Supply Chain Management

Supplier Audits: Not disclosed

Responsible Procurement
  • Not disclosed

Climate-Related Risks & Opportunities

Physical Risks
  • Not disclosed
Transition Risks
  • Not disclosed
Opportunities
  • Not disclosed

Reporting Standards

Frameworks Used: Null

Certifications: Null

Third-party Assurance: Not disclosed

UN Sustainable Development Goals

  • Not disclosed

Not disclosed

Sustainable Products & Innovation

  • Not disclosed

Awards & Recognition

  • Not disclosed

Reporting Period: 2024

Environmental Metrics

ESG Focus Areas

  • Environmental
  • Social
  • Governance

Environmental Achievements

  • Low cost, environmentally-friendly "green" operation in Arizona
  • Leach pad permitted in January 2023
  • EPA well stimulation amendment received in April 2023

Social Achievements

  • Experienced operators, > 3,400 days LTI free
  • Community engagement and collaboration (implied)

Governance Achievements

  • Experienced Management and Technical teams
  • Top-tier mining players in the capital structure, supporting growth
  • ESG at the core of Excelsior’s projects

Climate Goals & Targets

Long-term Goals:
  • Net zero emissions (implied)
Medium-term Goals:
  • Commercial discussion with Nuton and potential deal
  • Complete column testing (Nuton)
Short-term Goals:
  • Complete Feasibility Study for Gunnison
  • Commence well stimulation trials (ISL) for Gunnison
  • Finance & construction for JCM (Capital based on Nuton deal)

Environmental Challenges

  • Production issues and COVID-19 impact (past)
  • Permitting process and permitting risk
  • Financing for exploration and development activities
Mitigation Strategies
  • Successful track record of obtaining permits (25+ completed permits)
  • Collaboration with Nuton (Rio Tinto) for well stimulation and potential commercial transaction
  • Attracting top-tier mining players as investors

Supply Chain Management

Climate-Related Risks & Opportunities

Reporting Period: 2024-09

Environmental Metrics

Total Carbon Emissions:Not disclosed
Scope 1 Emissions:Not disclosed
Scope 2 Emissions:Not disclosed
Scope 3 Emissions:Not disclosed
Renewable Energy Share:Not disclosed
Total Energy Consumption:Not disclosed
Water Consumption:Very low water use
Waste Generated:Not disclosed
Carbon Intensity:Not disclosed

ESG Focus Areas

  • Water management
  • Biodiversity
  • Community engagement
  • Sustainability
  • Low carbon footprint

Environmental Achievements

  • Very low water use, no active competition for water resources
  • No threatened or endangered species or habitat impacted
  • Partnering with Nuton LLC for low-carbon copper production (up to 60% lower CO2 emissions)

Social Achievements

  • Substantial community engagement resulting in substantial support
  • Experienced operators with >10 years LTI free
  • Providing good jobs in rural areas

Governance Achievements

  • Not disclosed

Climate Goals & Targets

Long-term Goals:
  • Developing a long-life, multi-asset, mining camp in Arizona
Medium-term Goals:
  • Not disclosed
Short-term Goals:
  • JCM Open Pits (Nuton Technologies) construction and mining in H2 2024, copper production H1 2025
  • Well Stimulation ASAP (on funding $3-5M)

Environmental Challenges

  • Permitting risk
  • Impact of carbon dioxide gas reducing fluid flows at the Gunnison Project
  • Success of well stimulation
Mitigation Strategies
  • Successful biodiversity and archeological surveys showing no significant impacts
  • Well stimulation trials planned for H1 2024
  • Alternate mining studies underway

Supply Chain Management

Supplier Audits: Not disclosed

Responsible Procurement
  • Not disclosed

Climate-Related Risks & Opportunities

Physical Risks
  • Not disclosed
Transition Risks
  • Not disclosed
Opportunities
  • Not disclosed

Reporting Standards

Frameworks Used: Null

Certifications: Null

Third-party Assurance: Not disclosed

UN Sustainable Development Goals

  • Not disclosed

Not disclosed

Sustainable Products & Innovation

  • Not disclosed

Awards & Recognition

  • Not disclosed