Environmental

Environmental Commitment

Kirby is committed to continuously improving the compatibility of our operations with the environment.

Kirby pledges to:

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Conduct our business and operate our vessels in a manner that protects the environment and the health and safety of our employees and the public

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Comply with all applicable laws and regulations concerning the environment and apply responsible standards where laws and regulations do not exist

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Adhere to a zero-tolerance policy for willful violations by our employees

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Recognize and be responsive to public concerns about waterborne transportation and its effects on the environment

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Commit to reduce overall emissions and waste generation

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Participate with government and the public in creating responsible regulations and standards to safeguard the workplace, community and environment

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Establish and maintain, in cooperation with public authorities and others, contingency procedures and plans to mitigate the effects of accidents which may occur

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Conduct annual review and audit of Kirby’s Environmental Management System for continuous compliance

Our goal is NO HARM to the Environment – zero spills and zero releases.

Marine Transportation: A Good News Story for Safety and the Environment

Marine Transportation: A Good News Story For Safety and the Environment

Barges: Most Fuel Efficient

A rail car is 30% less efficient than a barge ​
A truck is 78% less efficient ​than a barge

Marine Transportation: A Good News Story For Safety and the Environment

Barges: Lower CO2 Emissions

To move an identical amount of cargo by rail generates 43% more carbon dioxide than by barge, and trucks generate over 800% more emissions.​

Barges: Fewer Spills

Inland waterways transportation is safest relative to Rail and Truck.​

All transport modes continuously work hard to prevent accidents, human errors, and other causes of spills. Statistics for 2001-2019 show trucks have 239% and rail cars have 287% more incidents than barges.

Marine Transportation: A Good News Story For Safety and the Environment

Marine Transportation – GHG Emissions

~98% of Kirby’s emissions are from the marine transportation fleet

Scope 1: Marine Transportation Fleet CO2e (MT)

Emissions Reductions (2015 to 2024)

  • Since 2015, total CO2e emissions have declined ~18% despite significant growth in the fleet​
    • Total barrel capacity up 17%​
    • Result of inland fleet acquisitions offset by offshore fleet retirements​
    • Diesel consumption declined 2% ‘23Y/’24Y despite increased activity in ton-miles
  • Since 2015, average age of inland boats is down ~14 years and offshore boats is down ~18 years

Emissions Reduction Targets

Short term target: ​25% emissions reduction per barrel of capacity by 2024​

  • Target achieved in 2024​

Long term target: ​40% reduction of emissions per barrel of capacity by 2040

Kirby Corporation – GHG Emissions Summary

Kirby Corporation Emissions

Scope 1 Emissions Performance

  • ~98% of Kirby Corporation Scope 1 GHG emissions come from marine transportation operations, primarily towboats and tugboats
  • Ultra-low-sulfur diesel fuel consumption and CO2e emissions have declined 18% since 2015 despite significant growth in the number of vessels in the fleet
  • Emissions data reporting project completed in 2022 – helps Kirby to better understand its emissions footprint on a micro level and assist customers in achieving their emission reduction goals
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Marine Transportation Fleet – Scope 1 – CO2e Direct Emissions

Scope 2 Emissions Performance

  • 100% of Scope 2 energy is consumed from the grid
  • Signed a 36-month agreement for 100% green e-certified energy for all Kirby marine transportation facilities in Texas
    • 100% renewable representation
    • ~22% of Scope 2 energy is renewable

*Barrel capacities reflect Kirby Inland Marine and Kirby Offshore Marine operating tank barge

Note: Kirby uses EPA emission factors to calculate Scope 1, 2 & 3 emissions

Decarbonizing Initiatives – 40% Reduction by 2040

When it comes to decarbonizing the company, Kirby is pursuing many paths.

Kirby’s commitment to decarbonization with a 40% intensity reduction by 2040 of Scope 1 Emissions, roughly 160,000 metric tons of CO2 is well underway. Through appropriate combination of these initiatives, the potential exists to meet emission targets without the application of carbon offsets.

  • Biofuels with emission reductions of 20-30% per towboat or tugboat*
  • Hybrid power technologies with reductions up to 80% per towboat or tugboat
    • Christened one of the first diesel-electric hybrid towboats in the United States in 2023 and started construction on the second in 2024
    • Engine re-powers with reductions of 15-20%

*Based on internal calculation via external emission factors for lifecycle analysis

  • Dedicated development of future carbon reduction techniques, alternative fuels, and power sources and their respective supply chains.
  •  Embedded emission reduction strategies in operations:
    • Fuel management procedure implemented
    • Extensive fleeting network and fleet boat capacity enables delivery of barge equipment to customer docks with smaller horsepower vessels
    • Company policy to require shutdown of main engines during cargo transfer (when safe to do so as determined by the captain)

Inland Marine – Hybrid Electric Towboat: M/V Green Diamond

Kirby is one of the first inland marine transportation companies to own and operate a diesel-electric hybrid towboat in the United States.

  • Began service in 2024
  • Proprietary in-house design, development, and construction for a diesel-electric inland push boat incorporating an energy storage system (ESS) that significantly reduce emissions
  • Reduced maintenance schedule and costs against conventional vessels
  • Efficiency gains in multiple operating modes
  • Fuel savings potential of up to 80%

Started construction on the second diesel-electric hybrid towboat in 2024

Kirby Offshore Marine

https://kirbycorpprd.wpengine.com/wp-content/uploads/2022/08/offshore-photo.png

Kirby Offshore Marine was a first mover to integrate tier four engines into its tugboat fleet​.

RONNIE MURPH​
RANDY McCRANEY​
CAPE ANN​
CAPE HENRY​
CAPE HATTERAS​
CAPE CANAVERAL​
CAPE LOOKOUT

~25% of fleet ​TIER FOUR

As engine tier level increases, engines produce less emissions and become more efficient and environmentally friendly​

https://kirbycorpprd.wpengine.com/wp-content/uploads/2022/08/offshore-photo.png

This picture of the Cape Canaveral was taken at the Kirby Offshore Marine, Staten Island NY facility

Going Above and Beyond – Marine Transportation

  • Kirby implemented usage of ultra-low-sulfur diesel on all vessels in 2012
  • All tank barges are double-hulled to better prevent environmental spills
  • Voluntary usage of 6 psi vs. 3 psi vapor relief value settings on inland tank barges (the industry standard) significantly reduce cargo vapor emissions*
    • ~48% of Kirby’s fleet is fitted with 6 psi vapor relief values
    • Kirby has the largest 6 psi barge fleet in the U.S.

    *6 psi barges are more environmentally friendly and have a lower probability of releasing vapors into the air than 1 psi and 3 psi barges.

  • Company policy does not allow for the discharge of bilge overboard, even if the vessel is equipped with an oil-water separator
  • Large tank barge fleet reduces unnecessary emissions and waste
    • Dedicated product tows reduce barge cleaning between cargos
    • Smaller fleeting boats reduce fuel consumption and emissions
    • Linehaul service improves overall barge to boat ratio (Kirby 3:1, industry 2:1)
  • Ongoing boat and engine replacement program improves efficiencies and reduces emissions
  • Starting in 2014, Kirby began transitioning its engine service oil changes from mineral to synthetic to better serve the equipment and the environment. 70% of inland marine boats use synthetic oil
  • Barge cleaning facility operations go beyond regulatory standards
    • Residual cargo recovery mitigates waste, and efficiency of cleaning process reduces emissions by 98%
  • Kirby serves as a leader in numerous industry organizations that help define industry regulations and improve air and water quality

Limiting Our Impact on the Environment

  • At Kirby, no spill is too small – all cargo spills, even if only 1 drop, are recorded and reported​
  • Cargo spills to water have declined since 2002 representing an 76% decrease​
  • In 2024, approximately 4,500 cargo transfer audits were completed
  • Kirby is committed to continuous improvement through cargo transfer audits, regular tankerman proficiency evaluations, advanced training courses, review and implementation of best practices, review of near-miss events, and quarterly tankerman meetings

* Incident rates of cargo spills per 1,000 transfers​

Inland vs. Offshore Marine

Kirby is committed to a cleaner and more efficient offshore fleet

  • By the end of 2024, Kirby will have spent over $29 million dollars over the last four years upgrading and repowering vessels from lower tiered engines to more environmentally friendly tiered engines
  • In the last four years, Kirby’s Tier 3 equipment has increased by ~25%
  •  Ongoing boat and engine replacement program improves efficiencies and reduces emissions

As engine tier level increases, engines produce less emissions and become more efficient and environmentally friendly

Engine Tier Strategy

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Since entering the offshore market Kirby’s investment strategy has removed all Tier 0 engines

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Since 2015 Kirby’s investment strategy has spent
$200M+ on Tier 3 and 4 engines and boats

Ballast Water Management

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Kirby has installed ballast water treatment systems
on 100% of its fleet

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Since 2015, Kirby’s has spent $110M+ on ballast
water treatment systems

Since 2017, Kirby Inland Marine has spent over $11 million investing in solar panels for ~830 barges that power high-level alarm systems

  • Allows the barges to load and discharge at facilities that do not have high level alarm hook ups on shore
  • Ensures tankerman can use the alarm system on loads and discharges which gives them a safety system to help prevent spills to the environment

Environmentally Friendly Oilfield Solutions

Kirby manufactures technologies that significantly reduce the environmental impact of hydraulic fracturing

Electric Fracturing Units

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E-Frac Units eliminate the use of all diesel fuel by operating on electricity generated by natural gas. The electricity is provided through natural gas-powered turbines, highly efficient natural gas reciprocating engines, or centralized power generation through the in-basin private use or public electrical grid.

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E-frac units provide enhanced levels of automation,removing workers from potentially dangerous areas and reducing wellsite headcount

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Compared to conventional fracturing units, e-frac units:

  • Provide over 2.5x the output per trailer
  • Reduce emissions, including NOX reduction
  • Reduce average sound pressure
  • Reduce road traffic associated with diesel transport

Dual Fuel and Quiet Fracturing Units

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Duel-fuel (DGB) fracturing units have up to an 85% diesel displacement rate when using natural gas

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Units can operate on CNG, LNG, pipeline gas, and field gas that would otherwise be flared

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Reduces trucking and road traffic associated with diesel fuel transportation to the wellsite

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Noise reduction units reduce decibel levels by more than 3x (10+ dB noise reduction) compared to conventional frac units

Power Generation Solutions

Kirby manufactures power generation equipment that is creating opportunities in new commercial and industrial markets

Natural Gas Reciprocating Generators

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High Power Output: 2.5 MW

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High Mobility: 53′ x 8.5′ x 13.5′

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Wide Operating Range: Up to 122°F operation

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Sound attenuated environmental enclosure

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Scalable operation with multiple generators

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Integrates with existing S&S power distribution products

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27.5% more fuel efficient than turbines assuming zero grid power supply at net zero consumption

Mobile Power Distribution Systems

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Enables highly scalable power plants and microgrids

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Multiple local generator inputs

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Utility infeed connection and synchronization

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Energy storage system connection

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Proprietary power control and management system enables synchronization and remote control of all local inputs (ESS and generators)

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Self-contained: Drive-up and plug-in (no additional rig-up)

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Highly scalable: Platform-based design (allows for smaller systems or use of multiple systems to meet different power demands)