YKK Switches to 100% Low-Carbon Aluminum for Zipper Production

YKK Corporation, a global leader in fastening products, has announced the full transition to using only low-carbon aluminum for all aluminum alloy wires used in its zippers starting May 2025. This marks a major step in its commitment to sustainable manufacturing under the YKK Sustainability Vision 2050.

This strategic shift, developed in partnership with Sumitomo Electric Industries, Ltd. and Sumitomo Electric Toyama Co., Ltd., began in fiscal year 2024 and has now reached full-scale implementation. The low-carbon aluminum, primarily produced using renewable energy like hydropower, emits less than 4 metric tons of CO₂ per ton—significantly reducing environmental impact compared to conventional aluminum smelting powered by fossil fuels.

The transition directly supports YKK’s ambitious climate goals, including a 90% reduction in greenhouse gas emissions for Scope 1, 2, and 3 by 2050 compared to 2018 levels. These targets are aligned with the Science Based Targets (SBT) initiative and aim to support a net-zero carbon future.

Terry Tsukumo, Vice President of Product Strategy at YKK, emphasized the strategic importance of this move, stating:

“Alongside our use of recycled and bio-based materials, incorporating low-carbon aluminum helps us minimize emissions and develop sustainable zipper products that are lightweight, nickel- and plating-free—perfect for apparel and luggage applications.”

As part of its broader sustainability roadmap, YKK continues to expand its lineup of eco-conscious products, including YZiP® zippers with silver anodized aluminum elements and models that use recycled tape, showcasing the company's innovation in sustainable design.

Customers and stakeholders can explore YKK’s sustainability initiatives and products via the YKK Digital Showroom, and track progress annually through its integrated report, This is YKK.