EPD Certification: Why Mexytech Is Building an International Green Passport for High-End Building Materials

An EPD (Environmental Product Declaration) serves as a globally accepted record. Independent experts check and verify this file. Furthermore, it remains open to the public. The report clearly measures the complete environmental effect of a product from start to finish. Many WPC and PVC manufacturers plan to sell their goods in the EU and Australian markets. For these businesses, getting an EPD is not just a choice anymore.

Buyers now demand it for government contracts. Builders also need it to complete LEED/BREEAM-rated projects. Finally, it acts as a strict rule for CBAM carbon footprint reporting. Six WPC factories in China have already obtained EPD. Mexytech is pursuing a split strategy: merged certification for WPC, independent certification for PVC, to maximise coverage while maintaining scientific accuracy.

The "Nutrition Label" for Building Materials: What EPD Actually Is

An Environmental Product Declaration (EPD) is a Type III environmental declaration under ISO 14025. It is not a marketing label. It is a quantified, standardised, independently verified document that discloses a product's environmental performance across its full lifecycle.

The ISO system defines three tiers of environmental claims:

EPD's authority comes from three structural features:

1. LCA foundation: Built on ISO 14040/14044 lifecycle assessment methodology, covering raw material extraction, manufacturing, transport, use phase, and end-of-life (cradle-to-grave or cradle-to-gate depending on PCR scope).

2. PCR standardisation: Product Category Rules (PCR) define exactly which environmental indicators to measure and how, so that two WPC decking products from different manufacturers can be compared on the same terms. For building materials, the governing PCR is EN 15804.

3. Independent verification and public registration: The completed EPD report is audited by an accredited third-party verifier, then registered on an official platform (EPD International, EPD-Norge, SCS-EPD, etc.) where anyone can download and scrutinise it.

This is why EPD is described as a product's "environmental nutrition label." It does not tell you whether the product is "green." It tells you exactly how much carbon, energy, water, and waste the product generates — in numbers you can verify.

Who Has Already Obtained EPD in the WPC Industry?

This is the most telling indicator of market direction. Six WPC factories have completed EPD certification, and the list is growing:

This list carries a clear signal: the factories serving Europe, Australia, and high-specification projects are investing in EPD first. Factories that rely on price-driven domestic or developing-market channels are not. When a buyer searches an EPD platform for WPC suppliers and finds six verified Chinese factories, the factories without EPD simply do not appear in the results.

Where EPD Becomes a Hard Requirement, Not a Soft Advantage

Three market mechanisms are pushing EPD from "nice to have" to "must have":

1. Government Procurement and Public Tenders

Across the EU and increasingly in Australia, government construction procurement policies now specify environmental documentation requirements. A WPC cladding supplier bidding for a public housing retrofit in the Netherlands or a hospital project in Germany will find EPD listed as a required technical attachment — not a suggested add-on. The reason is simple: public funds must be spent on demonstrably sustainable materials. EPD provides that demonstration in a format that procurement officers can evaluate without specialist knowledge.

2. Green Building Rating Systems (LEED, BREEAM, DGNB)

LEED v4.1 and BREEAM both award points for materials with EPD documentation. In practice, this means:

· LEED MR Credit: Building projects can earn points by specifying at least 20 products with EPD from at least 5 different manufacturers.

· BREEAM Mat 01: Projects score higher when using materials with verified lifecycle data (EPD).

A project targeting LEED Gold or BREEAM Excellent cannot reach that rating without EPD-backed materials. The architect or specifier who selects a WPC supplier without EPD is reducing the project's total score.

3. EU CBAM Carbon Footprint Reporting

The Carbon Border Adjustment Mechanism (CBAM) currently applies to cement, iron/steel, aluminium, fertilisers, electricity, and hydrogen. WPC is not yet in scope, but the regulation is designed to expand to all sectors covered by the EU Emissions Trading System. When that expansion happens, EPD will be the primary document for calculating the embedded carbon in imported construction products. Manufacturers who already have EPD will have their carbon data verified and ready. Those without EPD will need to produce it urgently, at higher cost and under time pressure.

Mexytech's Split Strategy: WPC Merged, PVC Independent

EPD certification strategy is not one-size-fits-all. Mexytech is pursuing a deliberately split approach that balances cost efficiency with scientific accuracy:

This split is not arbitrary. Under EN 15804 and ISO 14025, merging products into one EPD is permitted only when they share the same functional unit, same primary material composition, and same production process. WPC decking and WPC cladding meet those conditions. PVC flooring and WPC decking do not. Choosing to certify PVC independently preserves the integrity of the environmental data — which is exactly what EPD exists to guarantee.

The Full Certification Process: Timeline and Investment

Step-by-Step Process

Total Timeline

Cost Breakdown

Cost optimisation strategies: bundle same-series products into one EPD (saves 20-40%); combine EPD with ISO 14040-series certification in a single engagement; check for local government subsidies for green product certification — several Chinese provinces offer partial reimbursement for EPD investment.

Beyond Certification: What LCA Reveals About Your Own Operations

EPD is externally focused — it proves your product's environmental performance to the market. But the LCA process that produces the EPD also reveals internal operational insights that most manufacturers never see:

· Which production stage consumes the most energy? LCA modelling identifies the hotspot — whether it is raw material processing, extrusion, surface treatment, or logistics.

· Where is the most carbon-intensive input? The carbon footprint breakdown shows whether wood fibre sourcing, polymer resin, or transport dominates the emissions profile.

· Which product variant has the lowest impact? Within a WPC family, LCA can compare different formulations or thicknesses, guiding product development toward lower-impact configurations.

This is why EPD certification is not just a marketing expense. It is an operational intelligence exercise that feeds back into cost reduction, process optimisation, and material substitution decisions.

What This Means for the WPC Industry

EPD is a 5-year investment with compounding returns. The certificate stays valid for five years (with annual surveillance), meaning one certification cycle covers multiple project bids, multiple buyer enquiries, and multiple regulatory shifts. The factories that invested early — Guofeng, NewTechWood, Eletile, and others — now appear in EPD platform search results when European specifiers look for verified WPC suppliers. The factories that have not yet certified do not appear.

Mexytech's approach — merged WPC EPD for efficiency, independent PVC EPD for accuracy — is designed to maximise market coverage while maintaining the data integrity that makes EPD credible in the first place. When a buyer compares two WPC suppliers and one has EPD data on a public platform while the other has only a PDF brochure, the decision is no longer about price. It is about proof.

FAQ

Q1: How much does EPD certification cost for a WPC manufacturer?

Getting a domestic EPD on a Chinese platform usually requires a budget between 60,000 and 250,000 CNY. This total amount pays for a few different services. It covers the LCA consulting work. It also pays for the third-party verification and the actual platform registration. On the other hand, an international EPD needs a bigger budget. Choosing global options like EPD International, EPD-Norge, or SCS-EPD will generally cost around 120,000 to 400,000 CNY. The expenses go up because these global programs have much stricter verification standards. They also require extra international platform fees. Even so, makers of WPC product families can easily save some money. They can group their similar items into a single merged certification. This shared approach often cuts the final costs by 20 to 40 percent.

Q2: How long does EPD certification take?

Standard process with an existing PCR: 3-5 months. If a new PCR needs to be developed for your specific product category: 6-9 months. The LCA modelling and third-party verification stages are the longest phases. Starting early avoids deadline pressure.

Q3: Is EPD required by EUDR?

No. EUDR (Regulation EU 2023/1115) focuses on deforestation-free sourcing and requires a Due Diligence Statement with geolocation data. EPD focuses on lifecycle environmental performance. However, both are increasingly requested together by European buyers — EUDR for legality, EPD for green building scoring and carbon reporting. Having both is the emerging standard, not either one alone.

Q4: Why can WPC products be merged into one EPD but PVC must be certified separately?

WPC decking, cladding, and fencing share the same core material composition (wood-plastic composite), the same production process (extrusion), and the same environmental impact drivers. Under ISO 14025 and EN 15804, products with these similarities can be certified as a product family. PVC has a fundamentally different molecular structure, raw material base, and production process, and requires a different PCR. Merging PVC with WPC would violate PCR comparability rules and produce inaccurate LCA results.

Q5: Which WPC factories in China already have EPD certification?

As of 2026, six factories hold verified EPD: Guofeng (Anhui, EPD International), Luzhong (Foshan, EPD International), Hongshanlin (Anhui, EPD International), Tingran (Liaoning, EPD International + Green Building dual cert), NewTechWood (Huizhou, EPD-Norge), and Eletile (Zhangjiagang, SCS-EPD). This list is publicly searchable on each respective EPD platform.

Q6: What is the difference between Type I, Type II, and Type III environmental declarations?

Type I (ISO 14024): Ecolabels — qualitative pass/fail certification, not comparable across products. Type II (ISO 14021): Self-declared claims — no verification, no standardisation, lowest trust level. Type III (ISO 14025, EPD): Full lifecycle quantified data, third-party verified, publicly registered, and comparable across products under the same PCR. EPD is the highest-tier environmental declaration available.