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Aside from any legal obligations, several years ago we introduced a series of actions that enable us to track our supply chains and thus guarantee the traceability of our raw materials.

We always make appropriate use of natural and man-made materials and products, ensuring the safety of our employees and customers as well as considering their effects on the environment. We pay great attention to monitoring legislative standards and the most innovative technologies in these areas.

We have implemented our own ISAE 3000 Type 1 certified traceability programme, and recognize the following international certifications and regulations:

• London Bullion Market Association (LBMA)

• London Platinum and Palladium Market (LPPM)

• Responsible Minerals Assurance Process (RMAP)

• Responsible Minerals Initiative (RMI)

• The Conflict Minerals Reporting Template (CMRT)/Responsible Minerals Assurance Process (RMAP)

• Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES)

• The Kimberley Process (KP)

• Registration, Evaluation and Authorisation of Chemicals (REACH)



We have implemented our own traceability system, from deposits to final products. All the flows of traced gold that we use are certified by external audits. We benefit from exclusive traceability with each of our suppliers.



One hundred per cent of the diamonds we use are certified by the Kimberley Process. We only source them from a limited number of suppliers, and these have remained the same for many years. These trusted partners guarantee that all sources comply with the Kimberley Process, the international system which ensures that the purchase of rough diamonds is not associated with any conflict zones.


Oystersteel is an alloy for which our exclusive suppliers use waste from European industry in their manufacturing process. This waste makes up the iron part of the alloy and represents 70% of the casting volume on average. The remaining percentage is composed of ferroalloys, which feature high proportions of the elements that make up Oystersteel and are added in variable proportions to castings to obtain the final desired grade of steel (904L).


Tungsten, tantalum and tin

We follow the principles of the OECD Due Diligence Guidance to ensure the responsible sourcing of tungsten, tantalum and tin.

Alert system

Making a report

Any stakeholders concerned who have a report to make are invited to contact us via this channel.

Our alert system enables you to report any justified doubt regarding potential or actual harmful effects related to minerals or metals (gold, tungsten, tantalum and tin) sourced from conflict-affected or high-risk areas, or associated with child labour.

You can submit your report securely and confidentially by following the instructions in the submission form.

Submit an alert