William Lowery is an international arbitration and cross-border disputes lawyer who represents clients in high-stakes commercial and investment disputes across the nuclear, energy, mining, commodities, life sciences, pharmaceutical, and construction sectors. His practice focuses on complex international arbitration, arbitration-related litigation, award enforcement, and strategic dispute resolution involving technically sophisticated industries, long-term supply arrangements, infrastructure projects, and politically sensitive cross-border claims.

He has represented clients in arbitrations governed by the ICC, AAA/ICDR, JAMS, LCIA, LMAA, SCC, SIAC, and UNCITRAL rules, as well as in ad hoc proceedings, expert determinations, court litigation related to the recognition and enforcement of arbitral awards and foreign judgments, and 28 U.S.C. § 1782 actions. His experience spans both commercial arbitration and arbitration-related litigation, allowing him to advise clients from pre-dispute strategy through final award and enforcement.

William is recognized by Who’s Who Legal as a “Future Leader” in commercial litigation and international arbitration. Clients have told Global Arbitration Review that he is an “excellent practitioner[]” who is “practical and measured” in providing advice and “extremely responsive.”

William is particularly known for his work in the nuclear industry, including disputes involving nuclear fuel supply, U3O8, enriched uranium, conversion services, sanctions-related delivery issues, and long-term fuel-cycle contracts. He has represented and advised uranium mining companies, nuclear fuel suppliers, commodities companies, brokers, and utilities in disputes concerning pricing, delivery conditions, sanctions, export licenses, non-performance, and project abandonment under long-term supply and conversion agreements. His experience includes disputes involving U3O8 supply agreements, enriched uranium delivery obligations, and related issues arising under New York law and other governing laws.

William also has substantial experience in energy disputes more broadly, including upstream oil and gas disputes, investment treaty claims arising from expropriation of energy assets, gas and LNG price review disputes, midstream disputes, insurance arbitrations, and disputes involving crude oil, LPG, and other energy commodities. His matters have included representing Ukraine’s state-owned oil and gas company, Naftogaz, in its investment treaty arbitration against the Russian Federation arising from the expropriation of oil and gas assets in Crimea, resulting in an award exceeding $5 billion; representing clients in gas and LNG price review disputes valued in the hundreds of millions of dollars; and advising on disputes involving long-term crude oil and gas supply contracts.

William also regularly represents clients in life sciences and pharmaceutical disputes, including royalty disputes, milestone payment disputes, manufacturing and supply disputes, and other complex commercial disagreements involving innovative and highly regulated products. His recent matters include representing a multinational biopharmaceutical company in an ICC arbitration concerning royalty deductions with more than $300 million at stake, representing a life sciences company in a SIAC arbitration to recover an unpaid milestone payment, representing a global biotechnology company in a JAMS international proceeding involving a CDMO’s obligation to mitigate damages in good faith, and advising an international pharmaceutical company an expedited ICC arbitration.

In addition, William has significant experience in mining disputes, commodity trading disputes, and disputes arising from long-term supply relationships in the natural resources sector. He has handled matters involving uranium supply, mining project construction, cross-border commodity sales, sanctions-related non-delivery claims, and complex pricing disputes involving state-owned counterparties, utilities, traders, and producers.

William has further developed a strong practice in construction arbitration and infrastructure-related disputes. He has represented clients in disputes arising from EPC contracts, turnkey design and construction contracts, highway rehabilitation and construction projects, mining project construction, drilling and shipbuilding contracts, and other major industrial and infrastructure developments in Latin America and elsewhere.