Trex's 2025 Sustainability Report.
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TODAY & FOR TOMORROW
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LOGO USAGE
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CONTENTS
INTRODUCTION A Message From Our President and CEO About Trex 2025 Award Highlights 2025 Financial Performance Highlights 2025 Sustainability Highlights
LOGO USAGE
PRODUCTS
ENVIRONMENT
PEOPLE
LEADERSHIP
MADE TO
DESIGNED FOR CIRCULARITY
BUILT AROUND PEOPLE
ANCHORED IN INTEGRITY
ENDURE
Materials Innovation
Our Environmental Footprint Waste and Water Environmental Compliance Community Recycling Through NexTrex®
Health and Safety Our People Equal Opportunity Communities
Best Practice Corporate Governance Integrated Sustainability Governance
SUPPLEMENT About This Report U.N. Sustainable Development Goals (SDGs) International Financial Reporting Standards (IFRS)
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A MESSAGE FROM OUR PRESIDENT AND CEO
LOGO USAGE Trex designs for the people who use our products today—and for those who will inherit them tomorrow. That long view guides how we operate our business, from the materials we reclaim to the communities we strengthen and the way we invest in our people. We measure performance not only by immediate results, but also by the durability of our strategy, the resilience of our operations and the legacy we leave behind.
schools, retailers and community organizations to encourage them to collect waste plastic film and entrust Trex to recycle it. These partnerships build brand awareness, deepen community engagement and support future growth. We grow alongside the communities we call home. Through charitable giving, employee volunteering and partnerships like NexTrex®, we support local organizations, schools and nonprofits working to strengthen education, operational strength and economic opportunity. In 2025, Trex and our employees directed hundreds of thousands of dollars to community causes and continued our long-standing relationship with United Way. These investments reflect our belief that strong communities are essential to long-term business success. The values we hold today are the foundation for our future success. I am proud of our accomplishments in 2025 and confident that Trex is well positioned to continue leading our category, creating durable value for our customers, our shareholders and the generations to come.
These efforts contribute to business performance by enhancing productivity, supporting cost discipline and strengthening the resilience of our operations. Strong governance and environmental compliance protect enterprise value. That is why our governance structure integrates sustainability into strategic decision-making, supported by independent Board oversight and clear accountability. We continue aligning our disclosures with global reporting standards and maintaining a culture grounded in transparency, compliance and trust. Our success is inseparable from the well-being and performance of our people. We invest in our team members’ careers at all levels, from leadership to new hires. Recognition programs such as our Distinguished Performance Awards reinforce and celebrate excellence, ensuring that our culture supports sustained high performance. I am pleased to report that in 2025, we reduced both our lost-time incident rate and total recordable incident rate to well below industry averages through targeted risk management and safety engagement.
Today: Driving Operational Performance and Resilience
Circularity has been at the center of our business for nearly 30 years, since Trex first pioneered composite decking made from recycled and reclaimed materials. Today, 95% of the raw materials in our composite decking come from waste wood and recycled plastic films. In 2025 alone, we sourced nearly one billion pounds of recycled and reclaimed materials. The Trex magic is creating premium quality, durable, beautiful products from these materials. Our customers get to enjoy our products in their homes while we quietly reduce landfill waste, conserve natural resources and reduce demand for virgin timber and plastic production. We apply decades of innovation to our manufacturing. Quality and efficiency are built into our processes, enabling us to reduce energy demand, conserve water and minimize waste. In 2025, we strengthened our environmental management systems, expanded energy efficiency initiatives and audited our waste streams to identify additional efficiency opportunities.
Tomorrow: Positioning Trex for Long-Term Growth
Trex is built for the future—for our customers and our shareholders. Our sustainability credentials enhance our brand strength and category leadership. As new generations enter the housing market, our unique innovations position us to expand market share and lead responsibly. Customers are also community members, and our NexTrex® recycling network connects with an ever-increasing number of
Adam D. Zambanini President and Chief Executive Officer
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Our Vision To shape the future of outdoor living through purposeful innovation that enriches people’s lives. Our Mission Trex delivers trusted, high‑performance outdoor living solutions through engineering excellence, sustainability, and customer‑first innovation.
Our Values Innovate With Purpose We engineer solutions that meaningfully elevate outdoor living. Obsess Over the Customer We earn loyalty by making Trex easy to choose, buy and trust. Own the Outcome We take responsibility for results and deliver with integrity and transparency. Operate With Excellence and Efficiency We use data, discipline and continuous improvement to execute with excellence, while prioritizing safety in everything we do. Win Together We succeed through open, respectful collaboration across teams, channels and partners.
LOGO USAGE ABOUT TREX
Trex Company, Inc. is the world’s foremost producer of low-maintenance, high-performance, wood-alternative decking and railing products. For over 30 years, Trex has been a leader in sustainable design and production, creating products that embody quality, beauty and environmental responsibility. We’re also deeply committed to making a positive impact on our employees and communities.
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2025 AWARD HIGHLIGHTS
Barron’s 100 Most Sustainable Companies Ranked for achieving top scores across hundreds of ESG metrics (2024 and 2025) LOGO USAGE
Environment + Energy Leader Award Named Product of the Year and Judges’ Choice Winner for Trex composite decking as the top-scoring entry in the Consumer + Residential category
Green Builder® Sustainable Brand Leader Named Sustainable Brand Leader in the decking category for the 15 th consecutive year
Green Builder® Sustainable Products of the Year Trex Select® decking named one of the 50 most “Sustainable Products of the Year”
Greater Good Award, Large Business of the Year Received from The Top of Virginia Regional Chamber in recognition of Trex’s commitment to community, sustainability and philanthropy
Reworld Waste, Sustainability Award Honored for waste diversion efforts that reimagine waste as a resource (recognized in 2024; awarded August 2025)
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2025 FINANCIAL PERFORMANCE HIGHLIGHTS
$358M Net cash provided by operating activities LOGO USAGE
$1.17B Net sales
$1.78 Diluted earnings per share (EPS)
$68M Income tax expense
27.3% EBITDA margin
$321M EBITDA
$234M Capital expenditures
$190M Net income
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Environment 95% Composite decking raw materials from recycled and reclaimed sources since inception 1B Pounds of reclaimed wood and polyethylene (PE) film sourced for use in our products ~100% Trex process waste materials from our manufacturing recovered and re-incorporated into our processes 17B Gallons of process water recycled in our manufacturing operations
People and Communities 52k+ Hours of leadership, onboarding and professional development training completed by employees $450k+ in cash and equity for Annual Distinguished Performance Awards given to 71 employees in recognition of exceptional contributions 3,935 Community groups and schools that participated in the NexTrex® Recycling Challenge
Governance 9 Independent directors on our 10-member Board 40% Board members are women 1 100% Office-based and field sales employees completed online ethics training 2025 Sustainability Report indexed to IFRS Sustainability Disclosure Standards
LOGO USAGE 2025 SUSTAINABILITY HIGHLIGHTS
We are committed to driving positive, sustainable change through innovation— expanding flexible plastic recycling; reducing our own environmental footprint; prioritizing employee health, safety and well-being; strengthening local communities and upholding the highest ethical standards.
1
Temporarily decreased to 33% from November 1, 2025 until February 9, 2026.
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LOGO USAGE MADE TO PRODUCTS
ENDURE
Quality and longevity are the heart of our business. We continually innovate to produce the most durable and beautiful products from waste wood and plastic we reclaim and recycle. Trex turns discarded materials into long-lasting assets for your home.
In this section: Materials Innovation
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MATERIALS INNOVATION
Nearly 30 years ago, Trex pioneered an entirely new category of composite decking made from recycled and reclaimed materials—placing circular innovation at the core of our business from the very beginning. LOGO USAGE
By combining sawdust and other reclaimed wood fibers with recycled plastic film from everyday items like pallet wrap, shopping bags and consumer packaging, our low-maintenance decking keeps millions of pounds of waste from reaching a landfill. Today, 95% of the materials that go into Trex composite decking products come from recycled and reclaimed sources. This makes Trex one of North America’s largest recyclers of plastic film—and a leader in demonstrating what’s possible when circular design meets scalable manufacturing. Since our founding, we have upcycled more than 6.4 billion pounds of waste plastic film, transforming what was once discarded into beautiful, long-lasting outdoor living spaces.
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Made From Recycled and Reclaimed Raw Materials
3. Boost Internal Circularity: We recycle nearly all production scraps back into our products. This includes line startups, scraps, cutoffs, rejects, field returns and even used Trex boards. In 2025, we conducted a waste audit to identify more opportunities for in-house and external recycling. 4. Recycle End-of-Life Products: We are exploring ways
While our demand for raw materials can vary, rapidly scaling sourcing up or down is not always practical. The organizations we partner with to collect waste PE film and reclaimed wood rely on Trex for consistent, dependable material flows. To support these partners and build resilience into our supply chain, we have historically invested in warehouse capacity and inventory buffers. As market conditions and growth projections for waste PE and reclaimed wood have evolved, we have adjusted this approach—strategically right-sizing warehouse capacity and inventory levels while maintaining strong partner relationships and operational flexibility. At the same time, we continue to innovate to optimize our use of recycled and reclaimed materials. By diversifying sourcing channels
and improving manufacturing efficiency, we ensure that Trex remains agile, responsible and positioned to lead in circular practices, even as conditions change. We follow a four-pillar strategy to maximize the circularity of our decking products and ensure that 95% of our composite decking materials come from recycled and reclaimed sources: 1. Expand Relationships: We actively seek new sources of waste PE film and reclaimed wood. 2. Invest in R&D: We invest in research and development to test and recover additional streams of waste PE film that others have not yet tapped into for recycling.
Trex sources approximately 967 million pounds of waste PE film and reclaimed wood annually to manufacture our decking products. 1 The quantity of material we source for recycling varies according to production needs, inventory in storage and market conditions for waste PE and wood.
to channel used Trex products back into production. While our processes are ready to accept this material, the main challenge is the logistics of recovering end-of-life waste.
LOGO USAGE
1 Value represents a three-year rolling average from 2023-2025 to account for the impact of short-term market variability.
Post-retail sources, such as plastic bags or wrap generated in back-of-house operations
Post-commercial sources from manufacturing or distribution centers, such as waste plastic film from pallet wrap
Our proprietary manufacturing process is optimized to reuse factory waste and minimize emissions.
Post-consumer sources, such as plastic bags, wrap and other packaging collected by communities
Plastic film cleaned and ground into granules
Trex composite decking is made from 95% recycled PE plastic and reclaimed wood
and schools or deposited in recycling bins in retail stores
Reclaimed wood from multiple sources
Sawdust made from ground wood
Quality inspection of finished boards that have been cooled and cut into length
Finished boards packaged and sent to customers
Plastic film and sawdust combined and heated
Mixture die-formed into boards
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How We Source Waste Plastic
Annual Amount of PE Sourced (2023–2025 three-year rolling average)
sources—enables us to source the recycled PE required for our manufacturing production. The amount of PE we can source is influenced by multiple factors, including retail support, bag ban legislation, environmental activism and PE packaging optimization efforts, among others. Learn more about NexTrex® on page 22 .
When Trex first began recycling plastic film, there were few ways to reuse this material, and most of it ended up in landfills. Today, multiple industries are tackling the challenges of single- use plastics by incorporating recycled PE into their products and packaging—opening new possibilities for reusing waste PE films. Through our NexTrex® recycling program, we partner with businesses that produce large amounts of waste plastic film— such as shrink wrap, pallet wrap, plastic bags and stretch film—to collect and recycle PE. Many of our commercial partners, including grocery stores and retailers, also serve as convenient drop-off locations for post-consumer PE. LOGO USAGE By 2025, the NexTrex® network had grown to include over 15,300 retail stores across the country. This extensive network— spanning post-commercial, post-retail and post-consumer
Novel Sources of PE Film
379 million pounds 1
As new recycling opportunities for PE continue to emerge, Trex continually explores new sources of waste PE. For example, we incorporate end-of-life PE packaging materials that are often used by the food and chemical industry. We also invest in specialized equipment that enables us to process recycled material in various forms.
1 Values represent a three-year rolling average to account for the impact of short-term market variability.
SOURCES OF RECYCLED PLASTIC FILM Post-retail: Includes stores that generate waste plastic bags or wrap in back-of-house operations before items reach the sales floor. Post-commercial: Includes manufacturing hubs and/or distribution centers that frequently generate waste plastic film from pallet wrap. Post-consumer: Includes used plastic bags, wrap, bubble mailers, dry cleaning bags and other packaging that consumers deposit in our recycling bins in retail stores. Post-industrial: Includes plastic film scrap and off- specification material generated during the manufacture and conversion of plastic film packaging, as well as excess packaging products from operations.
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How We Source Sustainable Reclaimed Wood
Annual Amount of Reclaimed Wood Sourced (2023–2025 three-year rolling average)
Wood Sourcing Sustainability Credentials (% of total wood sourced)
challenges in disposing of this wood, and we are proud to provide an efficient, environmentally conscious solution for this waste stream. Trex prioritizes sourcing wood with strong sustainability credentials to support responsible forest management and ensure material traceability. We work closely with our suppliers to validate and regularly update certification records, including Forest Stewardship Council® (FSC®) certification, Appalachian Hardwood Manufacturers, Inc. (AHMI) Verified Sustainable sourcing, the Sustainable Forestry Initiative® (SFI®) program and other recognized standards. In addition, we incorporate end-of-life orchard wood into our products—material that would otherwise be discarded and for which no formal certification applies.
Trex obtains waste wood fiber in various forms from lumberyards, flooring and cabinet makers, and other wood processing companies to create our products. By using waste fiber as our raw material, we eliminate the need to purchase any virgin timber. We work closely with our suppliers to understand the origins and certifications of the virgin timber they purchase. We ask for details about the percentage of their wood that is certified sustainable and the specifics of those certifications. In 2025, an estimated 99% of the reclaimed wood we received came from certified sources and agricultural waste (see chart). Our Fernley, NV plant is a great example of circular sustainability because it is fully supplied by waste orchard trees that have reached the end of their productive life. Farmers often face LOGO USAGE
Sustainability certifications
End-of-life orchard wood (no applicable certification)
588 million pounds 1
73%
26%
1%
Wood without sustainable certifications
1 Values represent a three-year rolling average to account for the impact of short-term market variability.
99% of the wood reclaimed for Trex decking comes from sources with recognized sustainability certifications or from agricultural waste streams
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Products Engineered to Last Longer and Use Fewer Materials
We also obtain third-party verification to confirm compliance with International Building Code standards. Our wide range of high-performance, low-maintenance outdoor living products also includes composite and aluminum railing kits and systems. In 2025, we maintained our commitment to circularity by purchasing aluminum and polyvinyl chloride (PVC) containing a proportion of recycled materials for our railing products. The recycled aluminum content from our suppliers ranges from 30%-100%. Overall, the aluminum we purchase
has an average recycled content of 78% by weight. We also use PVC and recycled PVC for railing components. In 2025, we incorporated more than two million pounds of recycled PVC into Trex railing products.
wood decking, Trex helps reduce the demand for commercial forestry, supporting biodiversity and ecosystem health. Since January 2023, all Trex composite deck boards sold for residential use come with limited warranties of 25, 35 or 50 years. Our proprietary shell technology resists common weathering issues such as fading, staining 1 and mold. To ensure our products deliver the performance our customers expect, we conduct rigorous testing throughout the design phase, both in-house and through independent external laboratories.
Since launching our Transcend® product line in 2010, Trex has continued to innovate with products built to withstand weather and the test of time. Trex decks last at least twice as long as traditional wood decks. In fact, it would take a minimum of two wood decks to match the 25-year limited warranty of a deck built with Trex® Enhance® decking. By replacing traditional
1 For details, visit trex.com/warranty and trex.com/care.
LOGO USAGE
BUILT TO OUTPERFORM WOOD—BETTER FOR YOUR DECK AND THE PLANET Trex® composite decking delivers the natural look of wood with performance that goes further. Unlike traditional wood decks, Trex won’t split, splinter, rot or fall victim to insects or fungal decay. Made with 95% reclaimed and recycled materials, Trex helps keep plastic film and reclaimed wood out of landfills while reducing the need to harvest new timber. With exceptional durability and minimal maintenance, Trex eliminates the sanding, staining and chemical treatments wood requires—so your deck lasts longer, looks better and leaves a lighter footprint over time.
TREX DECKING LIMITED WARRANTIES
Trex Signature®
Trex Transcend® Lineage® 50 years
Trex Transcend®
Trex Select®
Trex® Enhance®
50 years
50 years
35 years
25 years
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Leveraging Technology to Maximize Yield
Sustainability Certifications
Supply Chain
In 2025, we built on our sustainability credentials with:
An Environmental Product Declaration, which provides transparent, science-based information about the environmental impacts of a product or material throughout its lifecycle. It is based on a Life Cycle Assessment (LCA) and follows international standards. Certification by the Forest Stewardship Council, a global network representing environmental, social and economic perspectives, responsible for forest management balances. European Union Deforestation Regulation certification, which aims to ensure products traded and consumed in the EU and globally no longer contribute to deforestation and forest degradation. Initiation of a new LCA for which we expect to receive the findings in 2026.
We leverage advanced technologies across our operations to optimize production efficiency while maintaining exceptional product quality. For example, we use an advanced In-line Measuring System across all Trex decking production lines. This cutting-edge system continuously monitors dimensional stability in real time. The impact has been transformative: dimensional variations have significantly decreased, manufacturing waste has been reduced, yield has improved and product quality has reached new levels of consistency. This innovation allows us to shift resources from manual inspections to proactive quality audits, improving operational efficiency and strengthening our continuous improvement efforts. It has also opened the door to exploring many other in-line applications, paving the way for future advancements in our processes. In 2025, we piloted new In-line Visual Defect Detection technology in our decking production lines and redesigned the Trex® Enhance® profile. As a result, we have significantly improved our product quality and process performance as well as our productivity and yield. LOGO USAGE
For architects and designers focused on sustainable building outcomes, Trex products offer a practical way to advance green building objectives. The use of recycled and reclaimed materials supports projects pursuing Leadership in Energy and Environmental Design™ (LEED®) certification and meets International Code Council Evaluation Service (ICC-ES) validation requirements. Specifying Trex decking can contribute up to four points toward a project’s LEED® rating, helping design teams align performance, durability and sustainability goals. Our decking has been validated by ICC-ES as conforming to U.S. National Green Building Standards® for each category assessed. In 2025, we renewed our ICC-ES VAR (Verification of Attributes Report), which provides a thorough evaluation of our environmental claims—including independent verification of our compliance with recognized green codes, standards and rating systems.
Trex aims to maintain a high-quality, resilient supply chain comprising third parties that comply with all applicable environmental, labor and human rights legislation. Our Vendor and Customer Code of Conduct and Ethics (Code) outlines our expectations for suppliers and customers. All suppliers and distributors must comply with these standards. We conduct risk assessments to determine the likelihood of vendors having difficulty in complying with our environmental, social or quality standards. In cases where we assess there to be significant risks, we require new vendors to complete a virtual self-assessment of compliance with our Code. Self-assessments may be followed by operating facility tours and on-site audits. Trex sources most of its raw materials from suppliers located in the U.S. and Canada. We purchase specific finished goods and components for Trex products from overseas vendors when necessary. When sourcing from outside North America, we contract with a third-party specialist firm to audit these companies, identify any code compliance issues and ensure problems are remediated before we onboard the supplier.
“My role at Trex encompasses managing direct supplier relationships, developing and distributing supplier performance reports and expanding our store-level recycling drop-off network. Through strengthened supplier partnerships, we have successfully scaled recycled plastic film collection from distribution centers to individual store locations. This expansion has enabled broader collaboration and education across store teams and partners, increasing participation in Trex’s recycling programs and diverting additional plastic waste from landfills in support of our sustainability initiatives.”
Raw Material Sourcing 1 (%)
Vendors in the U.S. and Canada
73%
26%
Overseas vendors
Hayley Green Senior Material Accounts Service Representative, Trex Company, Inc.
1
These percentages are by monetary value.
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LOGO USAGE DESIGNED FOR CIRCULARITY ENVIRONMENT
Circularity and efficiency are built into our manufacturing operations, reducing energy use, landfill waste and water consumption. By sourcing reclaimed and recycled raw materials and progressing toward zero waste in our manufacturing, we aim for the minimum possible environmental impact.
In this section: Our Environmental Footprint Waste and Water Environmental Compliance Community Recycling Through NexTrex®
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OUR ENVIRONMENTAL FOOTPRINT Our work to establish more sustainable production processes protects natural resources and supports the long-term success of our business. Environmental Policy Our Environmental Policy establishes the key principles we apply to integrate sustainability throughout our business:
Reducing waste generated in our manufacturing and business operations
Our manufacturing practices are based on internationally recognized standards, including ISO 14001 environmental management and ISO 9000 quality management standards. We consolidate environmental performance data from Trex manufacturing locations into a single digital platform. Centralizing this information improves management accountability, enables more detailed reporting and supports better-informed decision- making. Improved data management also helps us work more effectively with our partners, such as waste management contractors, to further Trex’s environmental sustainability goals.
Incorporating recycled, reclaimed and other waste resources
We start in our manufacturing facilities, where we focus on reducing impacts across energy use, emissions, materials, transportation and site development. Our policies, standards and operational oversight equip us to monitor performance and identify opportunities for more efficient operations. LOGO USAGE
Preventing pollution by maintaining environmental management as a core value Developing and adopting environmentally acceptable, safe and efficient production methods Identifying and complying with all legal and statutory requirements
TREX MANUFACTURING FACILITIES
DRIVING ENERGY EFFICIENCY IN LITTLE ROCK As we continue to scale operations at our Little Rock facility, energy efficiency remains a core priority. In 2025, we engaged a third-party energy consultant and worked with our local utility provider to identify and capture available energy savings and rebates as new operations came online. Through targeted upgrades across the manufacturing, warehouse and administrative buildings—including the installation of high-efficiency pumps, cooler fans and chillers— Trex achieved more than 8,700 MWh in energy savings over the year. These improvements not only reduced operational energy demand but also unlocked financial incentives that helped accelerate reinvestment in future efficiency measures.
“Working at Trex in Little Rock means seeing our sustainability impact up close. Every day, we take material that would have gone to a landfill and turn it into something people can use for decades. It’s satisfying to know that what we do here changes
Owned Manufacturing, storage, office space 1.5 M sq ft Leased Manufacturing, warehouse, research and development, storage, training 2.4M sq ft
where that waste ends up—and proves that manufacturing can be part of the solution.”
Virginia West Virginia
Nevada
Justin Golden Plant Manager, Little Rock, Arkansas
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Energy and Climate Impact
metric tons of CO 2 e, a decrease of 3% compared to 2024. Our GHG emissions intensity was 88 metric tons of CO 2 e/$ million sales, a decrease of 3% compared to 2024. These decreases primarily resulted from production changes relating to demand and increased manufacturing efficiencies. In 2025, we conducted an internal calculation of our Scope 3 emissions to deepen our understanding of our value chain impacts and identify additional opportunities for reduction. As sustainability regulations evolve—such as the California Climate Corporate Data Accountability Act—we continue to monitor emerging requirements to ensure we meet expectations for emissions reporting and climate-related risks.
We take an energy-smart approach to our manufacturing processes and transportation to reduce our energy and fuel consumption and consequent greenhouse gas (GHG) emissions. Our focus on energy efficiency applies to all the electricity, natural gas and fuel usage in our operations. In 2025, our overall energy usage totaled 412,975 MWh, a decrease of 3% compared to 2024. Our energy intensity was 352 MWh/$ million sales, a decrease of 5% compared to 2024. Our absolute carbon emissions (Scope 1 and 2) totaled 101,890 LOGO USAGE
Energy Use
Scope 1 & 2 GHG Emissions 4
2025
2025
2023
2024
2023
2024
412,975
32,951 66,296 68,939 99,247 101,890
Total energy use (electricity, natural gas and fuels) – MWh
369,186
426,922
Scope 1 – Metric tons CO 2 e
29,854 60,893 59,559 90,747 89,413
35,416 66,915 69,637 102,331 105,053
352
Energy use intensity – MWh/$ million sales
337
371
Scope 2 (location-based) – Metric tons CO 2 e Scope 2 (market-based) – Metric tons CO 2 e
Breakdown of Energy Use (MWh)
Scope 1 & Scope 2 (location-based) – Metric tons CO 2 e Scope 1 & Scope 2 (market-based) – Metric tons CO 2 e GHG emissions intensity (Scope 1 & Scope 2 market-based) – Metric tons CO 2 e/$ million sales
2025
2023
2024
237,590
Electricity for manufacturing Natural gas for manufacturing
209,089
237,014 170,773
88
82
91
157,716
144,613
N/A 5
Scope 3 – Metric tons CO 2 e
N/A
N/A
9,665 7,878
Propane for forklift trucks
8,994 6,490
10,202
Diesel for backup generators, fire pumps and intra-site transport Solar-generated electricity at Trex headquarters office (above right) 1
8,909
92
N/A
107
Breakdown of Energy Use 2025 (%) 2
Propane for forklift trucks 2.3%
Natural gas for manufacturing
38.2%
Diesel for backup generators, fire pumps and intra-site transport 1.9%
1 The headquarters office opened in June 2023 (above). 2 Totals may not add up to 100% due to rounding. 3 This includes on-site renewable energy generated as part of all administrative and support operations. 4 Location- and market-based GHG calculation methodologies are defined under the World Resources Institute GHG Protocol. 5 In 2025, we conducted an internal calculation of our Scope 3 emissions to deepen our understanding of our value chain impacts and identify additional opportunities for reduction.
57.5%
Electricity 3 for manufacturing
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Biodiversity
Looking Ahead
Transportation
Additional brokers are expected to achieve certification in 2026, further strengthening alignment with emissions reduction goals. The Environmental Protection Agency’s (EPA) SmartWay® program supports logistics providers in improving transportation efficiency. Building on this progress, initiatives launched in 2025 will continue into 2026, including further optimization of freight strategies and expansion of certified providers. Together, these efforts enhance supply chain performance while advancing Trex’s environmental objectives.
In 2025, Trex advanced efforts to optimize its logistics network, focusing on efficiency, risk reduction and lower-emissions transportation. This included a strategic restructuring of wood hauler operations to streamline processes and strengthen oversight, reducing operational risks while improving supply chain reliability. While decking shipments via rail decreased compared to 2024, intermodal shipping volumes increased, reflecting a more flexible approach that leverages both rail and truck transport. Trex also expanded its use of SmartWay-certified freight brokers, reinforcing its commitment to more sustainable freight practices. LOGO USAGE
We assess biodiversity impact when constructing new facilities, including our newest plant in Little Rock, and when making significant changes at our existing sites. While no new biodiversity studies were conducted in 2025, we continued to support the established biodiversity at our existing sites through efforts such as planting wildflowers, protecting waterways and maintaining wildlife habitat.
We remain committed to implementing lean manufacturing and continuous improvement processes across our environmental, safety and quality performance. This includes optimizing Trex’s manufacturing operations to reduce energy use and climate impact. Our 2026 priorities include targeted analysis of energy consumption and the identification of key improvement opportunities. To support this work, we are adding submetering capabilities at select areas of the Winchester manufacturing plant, providing a foundation for more detailed, facility-level energy analysis.
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ENVIRONMENT
PEOPLE
LEADERSHIP
SUPPLEMENT
19
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WASTE AND WATER
Waste Diversion From Landfill
The Trex efficiency program drives us to continually work to reduce the amount of water our manufacturing operations use and the waste we send to landfills. Our strategy employs advanced technologies, proven best practices and ongoing process improvements. LOGO USAGE
Partnerships to Divert Purge
across facilities and optimizing dumpster haul schedules are now priority action items. Based on the audit findings, we worked with our existing vendors in 2025 to increase the proportion of our scrap metal and pallets that we recycle. We also broadened the range of materials that Trex employees can recycle and made our single- stream recycling program accessible in more Trex locations. For example, team members can now recycle discarded personal protective equipment such as ear plugs, safety glasses and vests. We project that these and other enhancements will divert an additional 490 tons of waste from landfill annually.
Purge—a byproduct of waste PE reprocessing—accounts for a portion of our non-hazardous waste each year. In 2025, we continued our relationship with Reworld, a materials management company, to divert purge from landfill for conversion into energy. Through this process, nearly 821 MWh of electricity were generated, contributing to the energy grid that supplies Trex operations in Virginia. In 2025, we diverted 1,579 tons of purge to Reworld, down from 3,933 tons in 2024. This decrease reflects the launch of a new 2025 program to repurpose a portion of our purge into the production of fence posts, further advancing circular use of materials. Collectively, these efforts diverted 60% of purge from landfill.
As part of our landfill diversion strategy, nearly all the scrap composite materials from our manufacturing are recovered and re-incorporated into our processes—forming a circular “closed- loop” system. In 2025, we completed a third-party audit of our waste streams to better understand both the volume and types of waste generated across Trex operations. The audit identified our highest-impact waste streams and helped prioritize diversion opportunities. Scrap wood, metal and line start-up materials emerged as key areas with significant potential for improved diversion. As a result, standardizing waste management practices
In 2026, we will strengthen our new-hire orientation and training to emphasize internal recycling procedures.
Waste Disposed and Recycled (Tons)
2025
2023
2024
16,934
Non-hazardous waste disposed
16,041 3,860
17,112
8,204
Non-hazardous waste recycled (including energy recovery)
7,528
0.1
Hazardous waste disposed
0.3
0.1
86.8
Hazardous waste recycled (including universal waste)
43.0
76.7
2025 SUSTAINABILITY REPORT
INTRODUCTION
PRODUCTS
ENVIRONMENT
PEOPLE
LEADERSHIP
SUPPLEMENT
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Minimizing Water Use and Mitigating Runoff
We are researching additional options to increase the share of purge directed to more sustainable outcomes and away from landfill, with a goal of diverting 100% of this material annually by 2027.
to the supplier for re-use in 100% recycled packaging material. We also eliminated sub-bundling on pallets and reduced cardstock dimensions for select Trex products. Together, these improvements reduced our overall packaging material usage by more than 600,000 pounds in 2025.
We proactively reduce water consumption in our manufacturing processes by employing a closed-loop recirculation system at our Virginia and Nevada sites. In 2025, we successfully implemented this technology at our new facility in Arkansas. This system initially draws from municipal water sources, moving through the system for multiple cycles and undergoing filtration processes for cleaning. This setup allows for the continuous re-use of water with minimal loss. Additionally, we control the runoff of phosphorous, nitrogen and particulates from our sites through stormwater collection and filtration systems. In 2025, we used 246 million gallons of water, a decrease of 7% compared to 2024. This change is due to production changes from the prior year.
Hazardous Waste Disposal
Water Use and Recycling
We dispose of all hazardous waste safely and in compliance with regulations. We sort and send universal waste, a subset of hazardous waste, to off-site recycling facilities. In 2025, we recycled all but roughly 200 pounds of hazardous waste.
We work to be responsible stewards of freshwater resources by reducing the water we use and carefully managing the quality of runoff at our sites. We meet or exceed all applicable regulatory requirements in the communities in which we operate. Trex does not have any operating locations in areas classified as high or extremely high water-stress risk under the World Resources Institute Aqueduct tools .
LOGO USAGE
Reducing and Reusing Product Packaging
We continually work to reduce the environmental footprint of Trex packaging, including identifying opportunities to recycle the used packaging materials that arrive at our warehouses. In 2025, we worked with one of our corrugated cardboard suppliers to return more than 750,000 pounds of corrugate
Water Use (Millions of Gallons)
~99% Process water recycled annually by closed-loop recirculation systems at our Virginia, Arkansas and Nevada manufacturing facilities
2025
2023
2024
246
Water from public supply
238
265
16,692
Process water recycled
16,909
18,760
2025 SUSTAINABILITY REPORT
INTRODUCTION
PRODUCTS
ENVIRONMENT
PEOPLE
LEADERSHIP
SUPPLEMENT
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ENVIRONMENTAL COMPLIANCE Protecting the environment is fundamental to how we operate, and regulatory compliance is central to that commitment. Chemical Management
Clean Air Technologies
Environmental Compliance
2025
2023 2024
We use heat to meld wood and plastic materials, incorporating a minimal amount of chemical additives in our product mix. These chemicals are carefully controlled, maintaining levels well below the acceptable thresholds for both occupational safety and environmental health. We manage materials that contain potentially hazardous chemicals through licensed waste management third parties, ensuring responsible disposal and recycling. Our handling and storage practices comply with all permit requirements and internal safety standards, supporting safe, consistent and compliant chemical management.
To minimize impacts on air quality, we use EPA-approved control technologies that manage emissions such as particulates, volatile organic compounds (VOCs) and other pollutants generated by our manufacturing processes. Emissions at our production facilities remain in full compliance with state-issued air permits. At our Virginia and Nevada plants, we use dust- and particle- removal systems such as fabric filtration and wet scrubbers. We also operate state-of-the-art regenerative thermal oxidizers (RTOs) at our Virginia facilities, and in 2025 we expanded this capability to our Arkansas operations. This technology reduces VOCs by at least 95% and other air pollutants by 90%—all without using chemicals to treat the airstream.
Number of violations (waste, water, chemicals, air emissions) resulting in a fine
None
One None
We rigorously follow the requirements of our permits to safeguard air, water, soil and other natural resources. Our Environment, Health and Safety (EH&S) team continually reviews Trex operations to verify compliance, strengthen responsible practices and reduce environmental risk, helping us maintain the trust of our stakeholders. In 2025, Trex did not incur any violations or fines. LOGO USAGE
2025 SUSTAINABILITY REPORT
INTRODUCTION
PRODUCTS
ENVIRONMENT
PEOPLE
LEADERSHIP
SUPPLEMENT
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COMMUNITY RECYCLING THROUGH NEXTREX ®
NexTrex® Grassroots Movement
Our NexTrex® programs sit at the intersection of environmental stewardship and community engagement—making it easier for people to take part in the circular economy.
NexTrex® Grassroots Questionnaire to help identify strong leads and connect with new participants. A coordinated series of press releases further strengthened the program’s public presence and increased community awareness. We regularly promote the NexTrex® Grassroots Movement at schools, community organizations and state and regional recycling conferences to broaden participation. To help participants scale up their recycling, Trex provides options for them to acquire baling equipment, storage containers and collection site sheds. We also distribute promotional materials such as signage, press releases and collection bins to help launch new locations. Once 20,000-40,000 pounds of PE film are collected at a drop-off location, we transport the materials to a Trex facility and provide a cash rebate to the participating organization.
By connecting with schools, local organizations and community groups, NexTrex® removes logistical barriers to recycling PE film and channels this material to our facilities, where it becomes high-quality, long-lasting composite decking. Through initiatives such as the Grassroots Movement and the Plastic Recycling Challenge, we broaden access to recycling infrastructure and build practical awareness of how to recycle plastic bags and films. Our NexTrex® program empowers people of all ages to contribute meaningfully to waste reduction and enjoy the environmental and social benefits that come from responsible recycling.
Tailored for organizations that may not meet the volume criteria for commercial recycling, the NexTrex® Grassroots Movement makes community recycling more widely accessible. The program added 38 new centralized drop-off sites in 2025, raising the total to 116 locations for recycling PE film in collaboration with municipalities, nonprofits and other qualifying community organizations. In 2025, NexTrex® Grassroots partners recycled more than 4 million pounds of waste PE, a 67% increase over the 2.4 million pounds collected in 2024. We attribute this expansion to the continued growth of the NexTrex® Grassroots team, including the addition of a Collection Development Representative to support new locations and broaden program reach. We expanded our focus on nonprofits and welcomed our first universities to the program, while launching the
LOGO USAGE
6.5M+ In 2025, we recycled more than 6.5 million pounds of waste PE collected by schools, community groups and Grassroots locations through NexTrex®— a 24% increase from 2024.
EXPANDING COMMUNITY PLASTIC FILM RECYCLING Clean Up – Give Back, an environmental nonprofit based in the Chicagoland area, began with a simple question from the community: How can we responsibly recycle pliable plastic? After researching the challenges associated with plastic film, the organization launched a Plastic Bag & Film Drive in collaboration with NexTrex®. What started as a small initiative quickly grew into a year-round regional movement. Participation has increased dramatically, with total material recovered rising from 550 pounds in 2020 to 30,250 pounds in 2025 through collaborations with schools, churches, businesses and community groups. Success has been driven by accessibility and community ownership. Student-decorated bins are placed in workplaces, schools, churches and libraries, while 24/7 drop-off locations and commercial- scale bins make participation easy.
“We are grateful for Trex taking used pliable plastic and upcycling this
material into beautiful decking, keeping harmful plastic out of landfills. It’s our pleasure to educate communities about the process and show that everyone can play a role in protecting the environment.”
Donna Adam Executive Director, Clean Up – Give Back
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