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16 February 2026
Categories: Movers & Shakers , Profession
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Keystone Law—Milena Szuniewicz-Wenzel & Ian Hopkinson

International arbitration team strengthened by double partner hire

Keystone Law has hired Clyde & Co partners Milena Szuniewicz-Wenzel and Ian Hopkinson to bolster its international arbitration team, following the recent arrival of former Clyde & Co partner and international arbitration chair Ben Knowles. The duo join a 28-strong international arbitration team handling multi-million-pound disputes across leading global institutions.

Szuniewicz-Wenzel (pictured) advises on large-scale, high-value disputes across multiple jurisdictions, acting for states, national energy companies, insurers and multinationals, and has represented the Government of Yemen. Her practice spans energy, telecommunications, trade and commodities, pharmaceuticals, transportation and infrastructure, with particular expertise in production sharing agreements in the oil and gas sector.

Hopkinson represents and opposes states, state-owned entities and national oil companies, particularly in disputes arising from production sharing agreements, infrastructure projects and regulatory frameworks. He regularly appears as an advocate in international arbitration hearings in London and abroad, and frequently acts in commodities disputes involving oil products, minerals, biofuels and steel.

Founder and CEO James Knight said the pair are ‘exceptional additions to our international arbitration team’ whose experience in ‘high value, politically sensitive and multi jurisdictional matters strengthens our offering to clients across the globe’. Szuniewicz-Wenzel said Keystone’s model ‘provides an excellent base for practice’, while Hopkinson added that the firm’s platform ‘offers the flexibility and international reach that complex arbitration and energy disputes demand’.

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