2025 SUSTAINABILITY REPORT
INTRODUCTION
PRODUCTS
ENVIRONMENT
PEOPLE
LEADERSHIP
SUPPLEMENT
19
ONE COLOR SPRUCE
ONE COLOR BLACK
ONE COLOR
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
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