As Taiwan’s largest waste recycling operator, Taiwan Steel Union Co., Ltd. (TSU) has achieved the highest “Platinum” level certification under the UL 2799 Zero Waste to Landfill (ZWTL) standard. Centered on the core philosophy of “Zero Waste, Full Circularity,” TSU sets a groundbreaking benchmark for the domestic resource recycling industry.

100% Waste Diversion: Achieving Dual Firsts Nationally and Globally

UL 2799 Platinum Certification signifies a 100% waste diversion rate with zero reliance on landfill disposal. Leveraging its advanced Waelz process high-temperature smelting technology, TSU has achieved two unprecedented milestones:

• First Among Waste Removal, Treatment, and Recycling Operators in Taiwan: By establishing its subsidiary, Taiwan Steel Resources, TSU created a fully integrated, one-stop waste treatment service chain. This makes TSU the first waste clearance and recycling organization in Taiwan to complete 100% total resource recovery with zero landfill, earning Platinum-level validation.
• A Global First for EAF Steel Dust Recycling Plants: Driven by a circular economy model co-created by Taiwan’s industry, government, and academia, TSU has become the world’s first Electric Arc Furnace (EAF) dust recycling operator to secure this certification—realizing “100% Zero Waste, Full Circularity” without placing any landfill burden on the environment.

Cross-Industry Empowerment: Transforming Industrial Waste into Green Value

TSU’s waste management services span a wide array of sectors, including steelmaking, surface treatment, electroplating, chemical manufacturing, waste treatment agencies, and public incineration plants. Through total resource recovery technology, TSU helps cross-industry clients eliminate waste disposal risks and achieve Zero Waste to Landfill (ZWTL) targets—significantly enhancing their ESG ratings and supply chain competitiveness.

Dual UL International Certifications: Building a Sustainable Ecosystem Across the Value Chain

Following its milestone in 2024—where its products earned the UL 2809 Environmental Claim Validation for Recycled Content (achieving 100% recycled zinc content, a global first among EAF dust recycling plants)—TSU has now added the UL 2799 validation to its credentials. This dual authoritative endorsement empowers the entire industrial value chain:

• For Waste-Generating Clients: Provides a 100% zero-landfill treatment solution, reinforcing clients’ corporate sustainability image and accelerating their green transition.
• For Downstream Zinc Oxide Customers: Supplies 100% recycled zinc raw materials, assisting customers in aligning with international green procurement standards and sustainability certifications.

Taiwan Steel Union will continue to leverage its position as an industry leader. Through cutting-edge technology and environmental governance, TSU remains committed to driving Taiwanese industries toward a sustainable future defined by zero waste and full circularity.