Responsible Sourcing

Approved Service Providers

All GDL refiners and applicants must use an Assurance Provider on LBMA's Approved Service Provider List. The List is regularly reviewed and maintained up to date.

Assurance Providers are required to demonstrate fulfilment of the requirements detailed in LBMA’s Responsible Sourcing: Third Party Audit Guidance.

Below are the contact details for assurance providers on the Approved Service Provider List, as well as information on the geographic remit (global; regional; national) and the scope of engagement they are approved to audit. Auditors are approved to carry out third-party audits for GDL refiners based on the ISAE 3000 Standard.