Arbitration (International) Department

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What the team is known for Expanding presence in the European arbitration market driven by an impressive Parisian practice and increasing prominence in London. Experienced in sensitive investment treaty claims against European and African governments and state-owned entities that are often led from the London office. Stands out for work on commercial arbitrations between privately owned entities and investor-state claims against European governments, with particular expertise in matters involving Russian and Eastern European jurisdictions. Often acts on behalf of clients in the energy, mining and financial sectors.

Strengths Sources highlight the firm's "broad base of expertise across multiple jurisdictions" and the lawyers' "ability to grasp the wider commercial context of any legal dispute."

One client praises the lawyers for their "expertise, team spirit and having the client’s best interests constantly at heart," before going on to add: "I was impressed by the lawyers’ capacity to adapt to situations in a timely manner."

Work highlights Advised a multinational mining company and its subsidiaries on a claim against a state-owned mining company. The dispute concerned the dissolution of a joint venture operating a mine complex in the Democratic Republic of Congo.

Notable practitioners

Interviewees describe Matthew Weiniger QC as a "very impressive" advocate who "works efficiently and thinks tactically ahead." He handles a range of investment and commercial cases arising in the finance and energy sectors, often on behalf of Central and South-Eastern European clients. Weiniger is a key figure in the London office and co-heads the firm's global arbitration practice.

Pierre Duprey is a well-respected partner in the Paris market who handles a range of investor-state and commercial arbitration mandates. He has particular experience in cases relating to oil exploration agreements, joint ventures and contractual claims.