KAO WEIN Professional & Service

Established in 2007, Kao Wein Precision Co., Ltd. (KWP) is dedicated to the research, development, and innovation of specialized EPDM bonded washer technology. We continuously improve product performance, expand versatile applications for roofing screws and fasteners, and integrate the diverse requirements of global clients. Today, KWP has established comprehensive manufacturing capabilities, providing both high-volume production and customized solutions for a wide range of bonded washers.

As a highly trusted partner to our global customers, KWP is committed to manufacturing excellence and stringent quality control. We achieved ISO 9001 quality management system certification in late 2008 and successfully completed the ISO 14064-1:2018 greenhouse gas verification in 2025. In terms of product safety and environmental compliance, our products have passed rigorous SGS third-party testing, fully complying with REACH SVHC (Substances of Very High Concern) candidate list and RoHS Directive 2011/65/EU (including the amendment Directive 2015/863) regulations, strictly controlling restricted substances such as lead, cadmium, mercury, hexavalent chromium, and phthalates.

In a rapidly changing global market, we will continue to strengthen employee training, optimize product quality, and deepen collaborative partnerships with our clients. We remain dedicated to developing advanced technologies and delivering innovative services. Meeting our customers' expectations is the ultimate goal we strive for. We sincerely look forward to partnering with you to achieve new heights of business success.