GRI Content Index

GRI Standard	Disclosure	Description	Location or direct answer
GRI 2: General Disclosures 2021	2-1	Organizational Details	Introduction: About the Company 2024 Form 10-K, pg. 1
	2-2	Entities included in the organization's sustainability reporting	About This Report
	2-3	Reporting period, frequency and contact point	About This Report
	2-4	Restatements of information	We have restated our 2023 total fuel consumption from 8,797,397 GJ to 8,952,146 GJ, our 2023 total energy consumption from 19,646,096 GJ to 21,070,560 GJ and our 2023 energy intensity from 3.84 to 3.89 as the result of improved data availability.
	2-5	External assurance	We have not obtained external assurance.
	2-6	Activities, value chain and other business relationships	Introduction: About the Company Conducting Ourselves with Integrity: Responsible Supply Chain, Trade Associations and Political Engagement 2024 Form 10-K pg. 1-6
	2-7	Employees	Introduction: About The Company Performance Data Tables: About CMC
	2-8	Workers who are not employees	Data relating to the number of contractors and part-time employees were not available for inclusion in this report.
	2-9	Governance structure and composition	Conducting Ourselves with Integrity: Governance Structure Governance and Board of Directors 2025 Proxy Statement, pg. 28-33
	2-10	Nomination and selection of the highest governance body	Corporate Governance Guidelines 2025 Proxy Statement, pg 34
	2-11	Chair of the highest governance body	Corporate Governance Guidelines Governance and Board of Directors 2025 Proxy Statement, pg. 4
	2-12	Role of the highest governance body in overseeing the management of impacts	Sustainability Strategy: Management of Sustainability Conducting Ourselves with Integrity: Governance Structure Corporate Governance Guidelines
	2-13	Delegation of responsibility for managing impacts	Sustainability Strategy: Management of Sustainability Conducting Ourselves with Integrity: Governance Structure 2025 Proxy Statement, pg. 28-34
	2-14	Role of the highest governance body in sustainability reporting	Sustainability Strategy: Management of Sustainability Conducting Ourselves with Integrity: Governance Structure
	2-15	Conflicts of interest	Conducting Ourselves with Integrity: Ethics and Compliance Code of Conduct and Business Ethics Corporate Governance Guidelines
	2-16	Communication of critical concerns	Conducting Ourselves with Integrity: Ethics and Compliance Code of Conduct and Business Ethics Corporate Governance Guidelines
	2-17	Collective knowledge of the highest governance body	Corporate Governance Guidelines 2025 Proxy Statement, pg. 28-34
	2-18	Evaluation of the performance of the highest governance body	Corporate Governance Guidelines
	2-19	Remuneration policies	Corporate Governance Guidelines 2025 Proxy Statement, pg. 37-40
	2-20	Process to determine remuneration	2025 Proxy Statement, pg. 41-64
	2-21	Annual total compensation ratio	2025 Proxy Statement, pg. 65
	2-22	Statement on sustainable development strategy	Introduction: A Letter From Our President and CEO Sustainability Strategy
	2-23	Policy Commitments	Reducing Our Environmental Impact: Environmental Strategy Caring for Our People: Occupational Health and Safety Conducting Ourselves with Integrity: Ethics and Compliance, Responsible Supply Chain, Data Privacy and Security, Trade Associations and Political Engagement Workplace and Human Rights Policy Supplier Code of Conduct
	2-24	Embedding policy commitments	Reducing Our Environmental Impact: Environmental Strategy Caring for Our People: Occupational Health and Safety Conducting Ourselves with Integrity: Ethics and Compliance, Responsible Supply Chain, Data Privacy and Security, Trade Associations and Political Engagement Workplace and Human Rights Policy Supplier Code of Conduct
	2-25	Processes to remediate negative impacts	Reducing Our Environmental Impact: Environmental Strategy Caring for Our People: Occupational Health and Safety Conducting Ourselves with Integrity: Ethics and Compliance, Responsible Supply Chain, Data Privacy and Security, Trade Associations and Political Engagement Corporate Governance Guidelines
	2-26	Mechanisms for seeking advice and raising concerns	Conducting Ourselves with Integrity: Ethics and Compliance Code of Conduct and Business Ethics Corporate Governance Guidelines
	2-27	Compliance with laws and regulations	Reducing Our Environmental Impact: Environmental Strategy Conducting Ourselves with Integrity: Ethics and Compliance Code of Conduct and Business Ethics Supplier Code of Conduct 2024 Form 10-K, pg. 6-7
	2-28	Membership associations	Conducting Ourselves with Integrity: Trade Associations and Political Engagement
	2-29	Approach to stakeholder engagement	Sustainability Strategy: Stakeholder Engagement
	2-30	Collective bargaining agreements	Workplace and Human Rights Policy Supplier Code of Conduct

GRI Standard	Disclosure	Description	Location or direct answer
GRI 3: Material Topics 2021	3-1	Process to determine material topics	Sustainability Strategy: Material Issues
3-2	List of material topics	Sustainability Strategy: Material Issues
3-2	List of material topics	Reducing Our Environmental Impact: Water and Waste Management Reducing Our Environmental Impact: Energy and Emissions Caring for Our People: Occupational Health and Safety Caring for Our People: Employee Wellbeing and People Management Conducting Ourselves with Integrity: Trade Associations and Political Engagement

GRI Standard

Disclosure

Description

Location or direct answer

GRI 3: Material Topics 2021

3-1

Process to determine material topics

Sustainability Strategy: Material Issues

3-2

List of material topics

Sustainability Strategy: Material Issues

3-2

List of material topics

Reducing Our Environmental Impact: Water and Waste Management
Reducing Our Environmental Impact: Energy and Emissions

Caring for Our People: Occupational Health and Safety
Caring for Our People: Employee Wellbeing and People Management

Conducting Ourselves with Integrity: Trade Associations and Political Engagement

GRI Standard	Disclosure	Description	Location or direct answer
GRI 301: Materials 2016	301-2	Recycled input materials used	Performance Data Tables: Respect for Our Environment

GRI Standard	Disclosure	Description	Location or direct answer
GRI 305: Emissions 2016	305-1	Direct (Scope 1) GHG emissions	Performance Data Tables: Respect for Our Environment
	305-2	Energy Indirect (Scope 2) GHG emissions	Performance Data Tables: Respect for Our Environment
	305-3	Other Indirect (Scope 3) GHG emissions	Performance Data Tables: Respect for Our Environment
	305-4	GHG emissions intensity	Performance Data Tables: Respect for Our Environment
	305-5	Reduction of GHG emissions	Performance Data Tables: Respect for Our Environment
	305-7	Nitrogen oxides (NOx), sulfur oxides (SOx), and other significant air emissions	Performance Data Tables: Respect for Our Environment

GRI Standard	Disclosure	Description	Location or direct answer
GRI 403: Occupational Health and Safety 2018	403-1	Occupational health and safety management system	Caring for Our People: Occupational Health and Safety
	403-2	Hazard identification, risk assessment, and incident investigation	Caring for Our People: Occupational Health and Safety
	403-3	Occupational health services	Caring for Our People: Occupational Health and Safety Caring for Our People: Employee Wellbeing and People Management
	403-4	Worker participation, consultation, and communication on occupational health and safety	Caring for Our People: Occupational Health and Safety
	403-5	Worker training on occupational health and safety	Caring for Our People: Occupational Health and Safety Occupational Health and Safety Policy
	403-6	Promotion of worker health	Caring for Our People: Occupational Health and Safety Caring for Our People: Employee Wellbeing and People Management
	403-7	Prevention and mitigation of occupational health and safety impacts directly linked by business relationships	Caring for Our People: Occupational Health and Safety Occupational Health and Safety Policy
	403-8	Workers covered by an occupational health and safety management system	Caring for Our People: Occupational Health and Safety Occupational Health and Safety Policy
	403-9	Work-related injuries	Caring for Our People: Occupational Health and Safety Performance Data Tables: Acting with Integrity

GRI Standard	Disclosure	Description	Location or direct answer
GRI 404: Training and Education 2016	404-2	Programs for upgrading employee skills and transition assistance programs	Caring for Our People: Employee Wellbeing and People Management
GRI 404: Training and Education 2016	404-3	Percentage of employees receiving regular performance and career development reviews	Caring for Our People: Employee Wellbeing and People Management Performance Data Tables: Acting with Integrity

GRI Standard	Disclosure	Description	Location or direct answer
GRI 415: Public Policy 2016	415-1	Political contributions	Performance Data Tables: Accountability for Our Actions

GRI Content Index

General Disclosures

Material Topics

Materials

Emissions

Occupational Health and Safety

Training and Education

Public Policy