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High quality, high reliability, high performance borate products. It’s what we’re known for.

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- Featured products
  
  Firebrake
  
  Dehybor
  
  Neobor
  
  Optibor boric acid
- Featured applications
  
  Agriculture
  
  Ceramics, enamels, and glazes
  
  Fire retardancy
  
  Wood protection and biocides

About
About U.S. Borax

Global leadership in industrial borate supply, technology, and science—with local commitment to people and community.

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- Why partner with U.S. Borax
- U.S. Borax Operations
  
  Boron
  
  Wilmington
  
  Coudekerque
  
  Nules
  
  Owens Lake
  
  Rotterdam
  
  Sales and Support Offices
- Careers
  
  Workplace Safety
  
  Women in Mining
  
  Inclusion Council
- U.S. Borax History
- Community
  
  U.S. Borax Visitor Center
  
  Borax Visitor Center Foundation
  
  Community FAQ
  
  Boron Basics
  
  Boron in Modern Life

Sustainability
Customer support
Partnering with U.S Borax

Get quick answers and easy connections to product documentation, certification and safety information, expert technical support, and more.

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- Common support topics
  
  Delivery and storage
  
  Product stewardship
  
  Health and safety
- Support documentation
  
  Technical resources and SDS
  
  Certifications
  
  Multi-lingual documentation
  
  Common FAQ
- Product quality
  
  Boron testing methods
  
  Production lot and batch codes
  
  Better quality boron

Experts › Doseung Han

Boron Expert

Find a distributor

Doseung Han

Doseung Han

Sales Manager | Europe

+49 (0) 151 215 34524

doseung.han@riotinto.com

Doseung manages borates sales for Benelux, Scandinavia, Eastern Europe, and post-Soviet states. He has more than a decade of experience in international raw materials trading. He has a deep understanding of refactories as well as the steel industry.

Based in our Frankfurt office, Doseung is fluent in English, German, and Korean. He holds a bachelor of arts from Seoul National University and an MBA from WHU – Otto Beisheim School of Management in Vallendar, Germany.

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