---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-112859"
form_type: "8-K"
ticker: "TREX"
cik: "0001069878"
company_name: "TREX CO INC"
filed_at: "2023-04-24T23:59:59+00:00"
generated_at: "2026-06-16T18:19:30.160196+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Trex appoints Melkeya McDuffie as independent director, filling board vacancy

## Summary
- Appointed Melkeya McDuffie as independent director effective April 24, 2023.
- McDuffie is EVP & CHRO of Clean Harbors (NYSE:CLH) with prior HR roles at Waste Management, HSBC, Quest Diagnostics.
- She will serve on Audit and Compensation Committees; initial equity grant on May 4, 2023.
- Board now has ten directors, eight independent; McDuffie will stand for election at 2024 annual meeting.

## SEC filing metadata
- accession: 0001193125-23-112859
- form_type: 8-K
- ticker: TREX
- cik: 0001069878
- company_name: TREX CO INC
- filed_at: 2023-04-24T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/0001193125-23-112859-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/d24485d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-112859
- JSON: https://secwatch.observer/filing/0001193125-23-112859.json
- Plain text: https://secwatch.observer/filing/0001193125-23-112859.txt

## Key facts
- Executive change
  Melkeya McDuffie was appointed as director at TREX CO INC.
  - Action: appointed
  - Role: director
  source text: On April 24, 2023, the Board of Directors of Trex Company, Inc. (Company) appointed Melkeya McDuffie as a director to the board.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1069878/000119312523112859/0001193125-23-112859-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.