CONSOL Energy : 2023 REPORT

HERE TODAY AND TOMORROW:

INNOVATING FOR

THE FUTURE 2023 CORPORATE SUSTAINABILITY REPORT

2023 CORPORATE SUSTAINABILITY REPORT	MESSAGE FROM	ABOUT	STRATEGY	INNOVATION	STAKEHOLDER	OUR TEAM	ENVIRONMENT	GOVERNANCE, ETHICS	LOOKING	INDEX, DISCLAIMER
OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

TABLE OF CONTENTS

03Message from the CEO16

04	About CONSOL Energy	24
	05	About CONSOL

1. 2023 Highlights, Awards, and Recognition
2. Report Scope & Boundaries
3. ESG Membership & Collaboration

11Strategy31

Innovation 43Environment

Stakeholder Engagement 61Governance, Ethics & Compliance

Our Team	64	Looking to Tomorrow
32	Safety
39	Human Capital Management

67Index, Disclaimer & Point of Contact

Cover photo courtesy of davecooperphoto.com

2023 CORPORATE SUSTAINABILITY REPORT	MESSAGE FROM	ABOUT	STRATEGY	INNOVATION	STAKEHOLDER	OUR TEAM	ENVIRONMENT	GOVERNANCE, ETHICS	LOOKING	INDEX, DISCLAIMER	3
OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

1. MESSAGE FROM OUR CEO

theCOALhardtruth.com

Dear Stakeholders,

I am excited to share CONSOL Energy's 2023 Corporate Sustainability Report: Here Today AND Tomorrow. After 160 years, change and evolution are nothing new to us. We have been a reliable and secure source of energy for America and beyond and we have no intention of being anything less. Our tireless commitment to our core values sets us apart and demonstrates our dedication to continuous improvement. What does continuous improvement mean to us at CONSOL?

• It means being among the first U.S.-basedpure-play coal companies to voluntarily commit to Greenhouse Gas emissions reduction goals.
• It means implementing internationally recognized best management practices, as a Bettercoal supplier.
• It means an award-winning,best-in-class safety practice that outperforms the industry standard year after year.
• It means committing to invest approximately $30 million in capital to support our ESG goals.
• It means exceeding a 99.9% environmental compliance record1 for the 11th year in a row.
• It means seeding CONSOL Innovations LLC (CONSOL Innovations), our wholly owned subsidiary dedicated to creating long-term value through innovative opportunities in the non-combustible carbon products and materials markets.
• It means funding research that specifically aims to advance technology for carbon management, such as our 21st Century Power Plant and REMEDY projects.

• It means adhering to a responsible capital allocation program and delivering on our stated financial priorities.
• It means being committed to the communities within our operational footprint, conducting outreach and making charitable donations through the CONSOL Cares Foundation.
• It means providing high quality, family-sustaining jobs to more than 2,000 employees domestically, and supporting our local vendors and supply chains.

It's no secret that fossil fuels are under attack. However, coal must remain part of the global energy mix as a responsible energy transition evolves over the coming decades. It is imperative that we continue to diversify our sales portfolio, invest in scientific research

and development, set aggressive GHG emissions reduction goals, and bolster our ESG practices. With our recent strategic market shift, our coal is not only providing baseload power needs but is contributing to infrastructure build out in developing nations, further facilitating affordable economic and social growth in some of the most important regions of the world. We operate in a dynamic business and regulatory environment, which will continue to change, evolve, and create uncertainty. Regardless, we are confident that we will remain steadfast in our commitment to our core values and our history as an industry leader and good corporate citizen.

In 2023, we proudly announced the launch of our Not So Fast Campaign. Not So Fast is an awareness campaign seeking to inform the public, corporate leaders and U.S. policymakers about the economic hurdles,

technical challenges, and societal consequences of moving away too quickly from fossil-based natural resources, like coal. The campaign showcases the need for coal's continued presence and the value it brings to our daily lives. This is an important piece of the dialogue surrounding a realistic and responsible energy transition that is often missing. We invite you to join the conversation at theCOALhardtruth.com.

CONSOL Energy and our predecessors have adapted and performed throughout our history. Thanks to the dedication of our team, our commitment to our core values and our world-class asset base, we are once again adapting and rising to the challenge. We have executed our strategy to diversify our sales portfolio, fortified our balance sheet, and leveraged the CONSOL Marine Terminal for access to the growing export markets. We have advanced our technology and sustainability initiatives seeking to innovate across the entire coal value chain. We aim to support the long-term, responsible production of America's abundant coal reserves. At CONSOL Energy, we remain committed to delivering the immense benefits of reliable energy and critical infrastructure for Today AND Tomorrow.

We're proud of how far we've come, and this is just the beginning. The energy landscape is changing, and so are we. On behalf of our Board of Directors, our management team, and our employees, thank you for your continued support of CONSOL Energy.

JIMMY A . BROCK

Chief Executive Officer

1Compliance rate measured as the rate of compliance with NPDES permit effluent limits.

2023 CORPORATE SUSTAINABILITY REPORT	MESSAGE FROM	ABOUT	STRATEGY	INNOVATION	STAKEHOLDER	OUR TEAM	ENVIRONMENT	GOVERNANCE, ETHICS	LOOKING	INDEX, DISCLAIMER	4
OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

ABOUTCONSOLENERGY

P E N N S Y LVA N I A

CONSOL Energy Inc. Headquarters

Canonsburg, Pennsylvania

At CONSOL Energy Inc. (CONSOL), we are focused on sustainably leading the transformation of a mature industry that still holds significant benefits for society. Headquartered in Canonsburg, Pennsylvania, CONSOL is an independent, U.S.-based producer and exporter of high-quality bituminous coal for industrial, metallurgical, and power generation applications. CONSOL is a publicly traded company on the New York Stock Exchange under the ticker symbol "CEIX." We and our predecessors have been mining coal, primarily in the Appalachian Basin, for 160 years. We attribute our success to our strong corporate culture built upon our three primary core values: Safety, Compliance, and Continuous Improvement.

Photo courtesy of davecooperphoto.com

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OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

CONSOLENERGY

CONSOL's flagship operation is the Pennsylvania Mining Complex (PAMC) which has the capacity to produce approximately 28.5 million tons of coal per year. It is composed of three large-scale underground mines (Bailey, Enlow Fork, and Harvey) and the largest coal preparation facility in the United States, the Bailey Central Preparation Plant. Additionally, our Itmann Mining Complex, located in Wyoming County, West Virginia, has the capacity to produce approximately 900,000 tons of premium coking coal per year, serving the steel markets both domestically and abroad. The CONSOL Marine Terminal (CMT), owned and operated by CONSOL, is located

in the port of Baltimore, Maryland. With a throughput capacity of approximately 20 million tons per year, CMT provides strategic access to the export markets.

ORGANIZATIONAL HIGHLIGHT

In 2023, the CONSOL

1,000,000Marine Terminal surpassed safe work hours with

no recordable injuries.

In addition to the approximately 584 million reserve tons2 associated with the PAMC and the approximately 28 million reserve tons associated with the Itmann Mining Complex, CONSOL controls approximately 1.3 billion tons of greenfield thermal and metallurgical coal reserves and resources in the major coal-producing basins of the eastern U.S.

Additional information regarding CONSOL Energy can be found at www.consolenergy.com.

2 "Reserve tons" refers to the Company's proven and probable coal reserves as defined by Section 1300 et. Seq. of Regulation S-K that could be economically mineable, after taking into account modifying factors, including mining recovery and preparation plant yield.

Photo courtesy of davecooperphoto.com

2023 CORPORATE SUSTAINABILITY REPORT	MESSAGE FROM	ABOUT
OUR CEO	CONSOL ENERGY

NOT SO FAST

In 2023, CONSOL officially launched the Not So Fast public awareness campaign to advocate on behalf of the coal mining industry.

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FORCOAL

The campaign aims to educate citizens, corporate leadership, and U.S. policymakers about the economic and societal consequences of transitioning too quickly from a fossil-fuel based economy to one based on intermittent energy sources such as wind and solar. The campaign considers the tradeoffs and timing of this transition in light

of coal's continuing contributions to our quality of life, energy security, the reliability of our electrical grid, and its key role in reducing global poverty. These benefits, along with coal's use as an important raw material for applications and innovations extending well beyond electricity generation, are examined as part of the campaign.

Coal remains essential for meeting the basic human needs of billions of people around the world. With roughly 775 million

people still without access to electricity3 the need to harness and process our coal resources for decades to come is essential. Our energy security, economic vitality, and the basic human rights of developing nations around the world deserve careful deliberation. An energy policy that respects the value that coal brings to progress and prosperity needs to be part of the discussion. Many of the timelines being proposed by policymakers to remove coal and other fossil fuels from the energy mix are proving to be unrealistic and threaten our economy, energy security, and modern way of life.

This campaign advocates for a measured, and analytical approach to our nation's policies. Please go to theCOALhardtruth.comto join

the conversation.

3IEA (2023), World Energy Outlook 2023, IEA, Paris https://www.iea.org/reports/world-energy-outlook-2023, License: CC BY 4.0 (report); CC BY NC SA 4.0 (Annex A)

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OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

2023

HIGHLIGHTS, AWARDS,

AND RECOGNITION

Our Employees

Each employee received an average of 28 hours of safety training.

Conducted 834 employee safety training sessions.

100%

OF SALARIED

EMPLOYEES RECEIVED

PERFORMANCE

APPRAISALS

43%

OF CONSOL EMPLOYEES HAVE 10 OR MORE YEARS OF SERVICE

Environment

Announced partnership with Environmental Commodities Corporation to expand our voluntary methane destruction program at the PAMC, in support of our GHG reduction goals.

11th consecutive year of compliance rate exceeding

99.9%, as measured by the rate of compliance with NPDES

permit effluent limits.

Safety

Achieved goal of ZERO life altering accidents.

The CONSOL Marine Terminal employees surpassed one million working hours with ZERO recordable incidents.

Coal operations employees total recordable incident rate (TRIR) of 2.93 was 33% better than the U.S. Mine Safety and Health Administration (MSHA)

Community

The CONSOL Cares Foundation has surpassed $3.3 MM in charitable donations since its inception in 2018.

The CONSOL Cares Foundation donated more than $675,000 to various organizations located within CONSOL's operational footprint.

Technology

Expanded CONSOL Innovations LLC by acquiring the assets of Touchstone Advanced Composites (TAC),

an innovative composite tooling supplier for the aerospace industry.

Expanded Research & Development activities to include using coal and coal wastes for battery applications, including the development of battery electrode materials.

Our Leadership

Achieved goal to increase Director diversity from a gender, ethnicity, or racial standpoint. On the three foregoing topics, the Board of Directors is 33% diverse, and the Executive Management Team is 40% diverse.

All five of CONSOL's named Executive Officers reside within our operating footprint and were promoted from within.

Production

The CONSOL Marine Terminal achieved record throughput of

19.0 MM tons.

The PAMC sales volumes totaled

1. MM, with Harvey Mine achieving record production of

1. MM tons.

Demonstrated sales diversification and product flexibility, with 70% of annual total recurring revenues and other income derived from export sales and 60% derived from non-

11th consecutive year of operating without an environmental violation at the CONSOL Marine Terminal.

Reused a record 794 million gallons of water in operations.

Over 16,700 tons of refuse disposal avoided at the PAMC, as a result of our partnership with OMNIS Bailey LLC.

national average for underground bituminous coal mines.4

In 2023, Bailey Mine's Mine Rescue team won the "Best of the Best" contest at the Dolls Run Mine Rescue Competition.

The Bailey Central Preparation Plant worked with ZERO recordable incidents.

Harvey Mine was the recipient of the Keystone Mine Safety Award for the Longwall Division, recognizing the lowest nonfatal days lost time rate amongst all longwall mines

1. Based on preliminary MSHA data through September 2023 for underground bituminous coal mining industry.
2. "Total Recurring Revenues and Other Income" is a non-GAAP financial measure. Please refer to the "Reconciliation of Non-GAAP Financial Measures" for the year ended December 31, 2023 in our February 6, 2024 press release.

power generation sales.5

in Pennsylvania.

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OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

REPORT SCOPE

AND BOUNDARIES

The 2023 corporate sustainability report is CONSOL's seventh since becoming an independent, standalone company in 2017. We released the preceding 2022 corporate sustainability report in the first quarter of 2023.

While aspects of our ESG practice can be addressed through deployment of frameworks, policies, and

standards, others require innovation and strategic efforts to progress towards global economic, social, and environmental goals. As such, we have extended "ESG" to "ESG-i"(ESG-Innovation) to demonstrate innovation's importance in tracking toward ESG goals and tangible economic and social progress.

Consistent with our financial reporting, this report covers the Company's entire asset base from January 1 through December 31, 2023, unless otherwise noted.

In 2022, CONSOL Innovations acquired the remaining equity stake in CFOAM Corp. (CFOAM). CFOAM has been fully incorporated into our 2023 sustainability report.

This report was prepared by CONSOL representatives and reviewed and approved by the Health, Safety, and Environment Committee of the Board of Directors,

as well as the full Board. In addition, we engaged a third-party to perform completeness and accuracy testing of the following data included in this report: GHG emis- sions, water accounting metrics, environmental compliance data including penalty payments, and safety statistics.

All other data presented herein have not been subject to external verification or third-party assurance.

Specific metrics throughout the report have been informed by and reference certain Global Reporting Initiative (GRI) Standards from the Consolidated Set of GRI Sustainability Reporting Standards (2020)and GRI 12: Coal Sector (2022). In addition, we consulted the Sustainability Accounting Standards Board (SASB) Coal Operations Sustainability Accounting Standard (Version2023-12). A cross-reference between the material presented in this report and the relevant standards that were consulted is provided in the Index.

In addition to reporting our ESG-i approach and performance in our annual sustainability reports, we continue to participate in third-party disclosures, such as Carbon Disclosure Project (CDP), and the S&P Global Corporate Sustainability Assessment, as part of our commitment to transparency.

In alignment with previous sustainability reports, we disclose our management approach and certain key metrics for the following Environmental, Social, and Governance and Innovation(ESG-i) aspects of interest to our stakeholders and to CONSOL:

E		S	G	I
Environment	Our Team	Community	Governance	Innovation & Strategy
• Emissions & Climate	• Health, Wellbeing & Safety	• Landowner Engagement	• Board Diversity	• Portfolio Optimization
• Environmental Compliance	• Family Sustaining Wages	• Local Hiring	• Executive Diversity	• Revenue Diversification
• Reclamation & Closure	• Employee Retention	• Local Suppliers	• Ethics & Compliance	• Innovation & Technology
• Waste Management & Tailings	• Training & Development	• Focused Giving	• ESG Oversight	• Liability Management
• Water Management		• Economic Prosperity	• Transparency & Disclosure	• Prudent Capital Allocation
				• Strong Liquidity

2023 CORPORATE SUSTAINABILITY REPORT	MESSAGE FROM	ABOUT	STRATEGY	INNOVATION	STAKEHOLDER	OUR TEAM	ENVIRONMENT	GOVERNANCE, ETHICS	LOOKING	INDEX, DISCLAIMER	9
OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

MEMBERSHIPS &

COLLABORATION

We believe that collaboration is the key to our success and continues to strengthen our ESG-i practice. We engage with industry peers, third-parties, universities, public sector partners, and technology vendors that provide diverse perspectives and expertise. Our partnerships continue to challenge us to think differently and drive continuous improvement across our organization. In turn, we have the opportunity to educate our partners on the central role our coal operations play in the local community, region, and the world. These partnerships and collaborations enable CONSOL to continue to think creatively about our place in the energy transition, while demonstrating our importance to the world for many decades to come.

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OUR CEO	CONSOL ENERGY	ENGAGEMENT	& COMPLIANCE	TO TOMORROW	& POINT OF CONTACT

CONSOL ENERGY'S MISSION AND VALUES

Mission: To improve lives and communities by safely and compliantly producing affordable, reliable energy through innovative technology and perseverance.

Core Values: Since our predecessors' first active mining operations in 1864, CONSOL has mined the coal that powers the world with affordable, abundant, and reliable energy. Today, CONSOL's employees help generate the fuel that accounts for 35% of the world's power supply.6 Our core values - Safety, Compliance and Continuous Improvement - are the foundational elements and guiding principles of our business model. These values drive our strong safety and environmental record, as well as our commitment to the communities where we have lived and worked for generations.

SAFETY

COMPLIANCE

CONTINUOUS IMPROVEMENT

6 Energy Institute, Statistical Review of World Energy 2023, Supporting data (Electricity Generation by Fuel, based on gross output), https://www.energyinst.org/statistical-review.