Coudekerque Operations

Specialty Manufacturing

Through our subsidiary company, Borax Français, we refine and distribute a number of specialty products in our Coudekerque, France facility. Refined borates are shipped from California to Coudekerque, where they undergo a secondary refining processes to increase purity and produce high value specialty borates for the following sectors:

The pharmaceutical industry is highly regulated and EP/NF grade products manufactured at our Coudekerque facility conform to the current edition of the European Pharmacopoeia (EP) or the National Formulary (NF).

Coudekerque Facility Sets the Quality Standard for Specialty Borates
To ensure that manufacturers can trust the quality and consistency of the products they receive, our Coudekerque facility has developed a highly-specialized q... Learn More


Certificate of Suitability (CEP) certification

Our European Pharmacopoeia products are filed with the European Directorate for Quality of Medicines and Health Care. Our CEP certifications (certification of Suitability to the Monographs of the European Pharmacopoeia) allow our customers to easily administer their Marketing Authorization Applications (MAA) for the medicines that they produce. Access to the Borax Français dossier via the CEP and MAA system provides customers with cost management and control.

Good Manufacturing Practices (GMP) certification

Our entire process including manufacturing, laboratory, packaging, storage, and distribution is documented to comply with GMP guidelines. Borax Français has been inspected by the French authorities since 2007. The current GMP certificate covering active pharmaceutical ingredients is valid until 2021. Our certificate number is: 15MPP081HF01


89 Rte de Bourbourg
59210 Coudekerque-Branche, France
Coudekerque Map

U.S. Borax, part of Rio Tinto, is a global leader in the supply and science of borates—naturally-occurring minerals containing boron and other elements. We are 1,000 people serving 650 customers with more than 1,800 delivery locations globally. We supply around 30% of the world’s need for refined borates from our world-class mine in Boron, California, about 100 miles northeast of Los Angeles.  Learn more about Rio Tinto.

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