We are proud to announce that OYH, in partnership with global certification leader Intertek, has achieved a groundbreaking sustainability milestone. Our asphalt membranes, polymer membranes, and polyurethane coatings have successfully obtained Environmental Product Declaration (EPD) certification - making OYH the first Chinese waterproofing company to publish EPDs on the prestigious EPD International platform.

This rigorous certification process, conducted in full compliance with ISO 14025 and EN 15804 standards, provides transparent, quantified environmental impact data across our products' entire lifecycle - from raw material sourcing to end-of-life disposal. The results validate our leadership in sustainable material selection, low-carbon manufacturing, and circular economy practices.

EPD International, founded by Sweden's Environmental Protection Agency, represents the gold standard for environmental transparency in construction. Its recognition positions our certified products for immediate acceptance in global green building projects and sustainable procurement programs.

As we navigate the global green transition, this achievement marks our strategic evolution from product supplier to sustainability innovator. We will continue investing in green R&D, expanding our global footprint, and driving industry-wide adoption of higher environmental standards - delivering greater value to partners worldwide through our sustainable solutions.