Sustainability Overview

Message from CEO David Grzebinski

“The Kirby Way” defines our core values of Safety, People, Excellence, Community, and Integrity.

Guided by our core values – Safety, People, Excellence, Community, and Integrity – we continuously strive to operate responsibly, efficiently, and with a commitment to achieving exceptional results.

The past year has been one of impactful progress toward innovation and sustainability. In 2024, our Marine Transportation segment played a critical role in moving essential cargo such as petrochemicals, black oil, refined products, and agricultural liquids, all while adhering to the highest safety and efficiency standards. Meanwhile, our Distribution & Services segment advanced the development of environmentally friendly power generation solutions, benefiting individuals and industries worldwide.

We are particularly proud of our efforts to address the energy transition and improve environmental performance. The M/V Green Diamond diesel-electric hybrid tugboat was christened in 2023, marking a notable milestone in its development. By 2024, the vessel began operations with a customer, showcasing its impressive emission reduction capabilities and solidifying its role as a cornerstone of innovative maritime solutions.

Our customers have expressed their pride in partnering with Kirby Corporation, recognizing the vessel as a significant step forward in environmental innovation and operational excellence. This achievement underscores our shared commitment to advancing sustainable practices within the maritime industry.

In 2024, we started construction on a second hybrid electric towboat, further emphasizing our dedication to sustainable innovation in the industry. We have set an ambitious target to reduce carbon emissions per barrel by 40% by 2040, and we recognize that this effort is just one of many steps required to achieve it. In addition, I am also proud to share that the Company exceeded our 2024 emissions reduction target of 25%, an achievement made possible by strong operational performance, strategic innovation, and the dedication of our team.

Equally important to us is fostering a supportive internal environment while making a tangible difference in the communities where we operate. For example, we furthered our dedication to human rights through targeted training initiatives. Additionally, we contributed to over 50 charitable causes, emphasizing our commitment to community development. Moreover, our Kirby Disaster Relief Fund provided crucial assistance to employees during challenging times, ensuring support and stability in the wake of disasters such as the May Derecho weather event and Hurricane Beryl in Texas. The Company was able to assist over 175 employees with emergency funds and supplies in 2024.

We aim to advance our sustainability goals by maintaining open dialogue with stakeholders and offering relevant data. Our commitment is to create a workplace grounded in respect, integrity, and a shared purpose of promoting societal well-being.

Thank you for your continued support and trust in Kirby Corporation.

_{Disclosure Note: Kirby Corporation’s Sustainability Report provides an overview of long-term company goals and efforts in support of those goals. Some material is derived from other company documents. Portions of the report contain aspirational or otherwise forward-looking statements. Actual results may differ, possibly materially, from the company’s expectations or predictions expressed in the document. See the Appendix for additional important information about these forward-looking statements.}

Sustainability Report Highlights

Guiding ESG Frameworks and Standards

Kirby is relying on the following frameworks and standards to guide our ESG journey.

“The Kirby Way”

Safety

Our guiding principle is No Harm to people, the environment, or equipment. Safety is at the core of everything we do and always drives our decisionmaking.

People

Our people make the difference. We invest in the tools and resources to empower our employees, and we promote a workplace that values mutual respect, knowledge, and teamwork.

Integrity

Do the right thing by having the highest ethical standards while always being transparent and accountable for our actions

Excellence

Creating value for our customers and shareholders by providing the highest quality service and products.

Community

Sharing our success with each other and the communities in which we live and work in by protecting the environment and encouraging volunteerism.

Kirby Contributes to a Better Quality of Life Every Day

Kirby’s products and services are vital to the development of common end-products and used by people daily.

Our involvement stretches from our marine transportation business, which safely and efficiently moves millions of tons of cargo transporting petrochemicals, refined products, and agricultural liquids annually, to our Kirby Distribution and Services business that manufactures environmentally friendly oilfield equipment.

We are proud to play a critical role in the supply chain of countless products that create a better quality of life for people around the world. This includes pharmaceuticals and medical equipment that support health and wellness, along with cell phones, school supplies, safety gear, recreational products, and personal care essentials—all made possible through the materials we help transport and deliver.

Stakeholder Engagement and Participation

Blue-Sky Maritime Coalition (BSMC)

Kirby is a founding member and serves in leadership positions (Board Member and Treasurer)
BSMC members recognize the need to address global climate change and are committed to accelerating the transition of waterborne transportation in the United States and Canada toward net zero GHG emissions through development of infrastructure, encouraging innovation, and promoting policies

Climate-Related Risks and Opportunities

Kirby’s Marine Transportation Group moves millions of cargo tons of petrochemical, refined, and agricultural products annually. Demand for these products has increased over the years and according to the International Energy Association is expected to continue moving forward.

Therefore, Kirby is met with a dual challenge with respect to emissions from transporting said products and climate-related risks and opportunities. Below is a summary of the framework used in Kirby’s report on the Task Force of Climate-Related Disclosures.

Risk Management

Our enterprise risk management process, Kirby is performing a scenario analysis of risks and opportunities associated with changing weather patterns that could have significant impact on our operations

Hurricane scenario
High water scenario
Energy technology transition

Governance

Board Oversight

ESG & Nominating Committee: ESG issues
Audit Committee: Climate-related risk and opportunities

Management Oversight

Climate-related risk and opportunities
ESG/Sustainability issues

Strategies with Examples

Transition Risks

Policy and Legal: Oil and gas regulations changes
Technology: Transition to low-emissions equipment, energy technology
Market: Eco-friendly fracking equipment
Reputation: Cargo spills

Physical Risks

Acute: Hurricanes
Climate: Flooding

Target and Metric

Kirby Corporation is committed to reducing the negative effects of climate-related risks and developing strategies to capture opportunities.

To address its marine fleet’s CO2e emissions, the Company has established a 40% emissions reduction target per barrel of capacity through 2040.

For more information, please see our Environmental page.