Gold mining bilateral investment treaty dispute

In the context of a Bilateral Investment Treaty Dispute between a CIS Gold Mining Company and a Sovereign State under UNCITRAL rules, we were retained by a gold mining company (Claimant) against a sovereign nation relating to the assessment of allegedly unfair levels of taxation. Client was Russian and most of documents including financial statements were in Russian. Provided several expert reports in liability phase of arbitration assessing the operating costs, cash costs and production costs of the subject entity.