Alper Tosun

My focus

I concentrate my practice on complex litigation and investigative matters, with particular emphasis on white-collar defense and international arbitrations concerning commercial disputes both in the United States and abroad. I have effectively represented clients in proceedings overseen by some of the world’s most esteemed arbitration institutions, including the International Centre for the Settlement of Investment Disputes (ICSID). I have also advised clients on the international enforceability of arbitral awards and executed negotiations for cross-border commercial agreements. I consult on business projects across more than fifty countries, acting as the principal point of contact for transactional matters with international investment entities, and the drafting and negotiation of various derivatives and arbitration agreements.

This diverse experience has equipped me with a comprehensive understanding and a strategic approach to addressing complex legal challenges effectively. And my extensive business networks further enhances my ability to navigate multifaceted issues from a global perspective.

My scholarly work includes a notable dissertation on the recognition and enforcement of international arbitral awards, published by the University of California, Berkeley. I am also a frequent speaker in the field of international arbitration. I present at global conferences and contribute to reputable legal journals, sharing insights on complex legal theories and practical applications in arbitration and my dedication to advancing the field is further evidenced by active membership in several professional associations, where I collaborate with other leading practitioners to refine arbitration practices and promote fair resolution of cross-border disputes.

Representative experience

• Represented major energy corporations in International Chamber of Commerce (ICC) arbitrations involving disputes over oil and gas exploration and production contracts across multiple jurisdictions
• Acted as lead counsel in ICC arbitration regarding long-term pricing disputes in liquefied natural gas (LNG) supply agreements, involving key stakeholders from Asia and the Middle East
• Managed ICC arbitration proceedings related to the construction and operation of cross-border oil pipelines, addressing issues of contract termination, delay claims, and environmental compliance
• Directed legal strategy in ICC arbitrations concerning renewable energy projects, focusing on disputes over solar and wind farm development contracts, including financing, construction, and operational performance
• Led the resolution of ICC arbitration cases involving disputes over electricity market regulations and pricing, particularly in deregulated markets in Europe and North America
• Represented energy sector clients in ICC arbitrations related to nuclear power plant construction, including claims of defective design, construction delays, and regulatory compliance issues
• Managed complex dispute resolution processes under the ICC rules for offshore drilling operations, addressing contractual, regulatory, and safety issues in harsh-environment operations
• Led negotiations and arbitration proceedings for energy sector joint ventures, particularly focusing on issues of profit sharing, technology transfer, and operational control in cross-border settings
• Advocated in ICC arbitration for the resolution of disputes arising from geopolitical risks, such as expropriation and nationalization of assets in the energy sector, ensuring compliance with international investment law
• Developed a specialized international litigation and transactional practice serving corporations and individuals across Southern Europe and Asia
• Represented individual clients in intricate, cross-border civil litigation and investigations within the United States
• Acted on behalf of international clients based in Europe in arbitration proceedings conducted in the United States
• Assisted in the formulation and implementation of compliance programs for international corporations, focusing on commercial practices and regulatory adherence
• Advocated for clients in ongoing criminal proceedings, formulating robust legal defenses and comprehensive trial strategies
• Engaged actively in civil litigation discoveries, including attending and participating in witness depositions
• Represented financial institutions in disputes related to mortgage claims, focusing on mortgage modification issues and defenses against allegations of bad faith
• Advocated for corporate entities in disputes stemming from breach-of-contract claims and trademark infringements
• Provided legal advice and representation in intellectual property disputes, specifically focusing on patent infringement and protection strategies
• Negotiated complex merger and acquisition agreements for multinational corporations, ensuring compliance with international law and corporate governance
• Conducted risk assessments and due diligence for overseas investments and joint ventures, particularly in emerging markets
• Advised on regulatory compliance and represented corporations in administrative proceedings and regulatory investigations
• Facilitated resolution of labor and employment disputes in multinational settings, including arbitration and mediation involving expatriate and local personnel
• Represented technology firms in litigation concerning software licensing disputes, data privacy breaches, and compliance with international cyber laws
• Managed legal aspects of environmental compliance and represented corporations in international environmental disputes, including litigation related to climate change impacts and regulatory compliance
• Provided strategic legal counsel in matters related to international trade, including navigating tariffs, trade embargoes, and compliance with global trade regulations
• Advocated for clients in antitrust and competition law cases across multiple jurisdictions, addressing issues of market dominance and unfair business practices
• Managed litigation related to antitrust and competition laws, coordinating with the US Department of Justice (DOJ) and European Commission on matters of corporate mergers and alleged anti-competitive practices
• Led negotiations and legal strategies for resolving international commercial disputes, including cases involving various legal systems 
• Directed litigation strategies for cases involving international maritime law, including shipping disputes, maritime injuries, and environmental violations at sea
• Acted as lead counsel in cases involving international aviation law, including disputes over aircraft leasing, accidents, and compliance with international aviation standards
• Managed high-profile intellectual property litigation involving cross-border patent disputes, trademark conflicts, and issues related to international copyrights
• Represented clients in international trade disputes under the World Trade Organization (WTO) rules, addressing tariffs, quotas, and non-tariff barriers
• Led legal teams in cases of international extradition and mutual legal assistance treaties, particularly involving US and European jurisdictions
• Represented governmental entities in public international law disputes before international tribunals such as the International Court of Justice (ICJ)
• Directed legal responses to international environmental law cases, particularly those involving transboundary pollution and compliance with international environmental agreements
• Led advisory teams on issues of international sports law, including arbitration at the Court of Arbitration for Sport (CAS) and compliance with international doping regulations
• Represented healthcare organizations in cross-border regulatory compliance and disputes involving medical device regulations and pharmaceutical practices