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Export Control and Sanctions

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  • Recognized Expertise in Export Controls and Economic Sanctions  

    Wilson Sonsini’s Export Controls and Economic Sanctions practice is consistently recognized by well-known industry authorities, such as Chambers USA and Chambers Global. The team’s attorneys are individually cited for excellence and other accomplishments in these publications and they are often invited to speak at industry-leading conference. Clients describe them as “[outstanding]…providing solid legal guidance in a very efficient and responsive manner” and “[t]hey know the technology space well and are familiar with the issues technology companies face.”

  • Unmatched Skills, Experience, and Practical Legal Solutions for Global Businesses 

    Our comprehensive scope of practice includes providing business-forward practical legal advice regarding shipping products & technology outside of the U.S., hiring foreign nationals in the U.S. and abroad, software downloads and licensing to international users, providing SaaS to international users and SaaS hosting outside of the U.S., cloud computing issues, and encryption. We regularly counsel clients on these areas in connection with off-shore manufacturing, joint ventures, overseas research and development, and advising on the applicability of UK and U.S. laws to these foreign activities.

  • Transatlantic Presence and Capabilities to Assist with Multijurisdictional Issues

    Wilson Sonsini’s team of export controls and sanctions attorneys includes U.S.-based and dual-qualified UK-based attorneys that can assist multinational companies with various licensing, enforcement, and policy matters. The firm’s attorneys have administered numerous internal and government investigations involving potential violations of U.S., UK, and EU economic sanctions and export controls in the United States, Europe, and Central and South America. We also regularly counsel clients on global compliance reviews addressing U.S., UK, and EU export control and sanctions issues.

  • Experienced Investigative Team Anchored by Chambers-ranked Attorneys

    Wilson Sonsini's team of export controls and sanctions attorneys conducts internal audits and investigations, prepares voluntary disclosures, and represents clients in both administrative and criminal enforcement-related matters before various U.S. and UK enforcement agencies.

In today’s expanding global economy, companies increasingly need access to understandable and comprehensive advice on compliance and enforcement issues related to U.S., UK, and EU economic sanctions and export controls laws and regulations.

Wilson Sonsini's team of export controls and sanctions attorneys in the U.S. and UK, anchored by several Chambers-ranked individuals is uniquely qualified to assist companies with a broad array of regulatory and compliance issues, including developing customized advice on how these regulations apply to their products, software, technology, and services; preparing for and conducting civil and criminal government investigations and enforcement actions; and developing easy to implement compliance policies and procedures to prevent such investigations and actions. 

The firm's clients, which range from large multinational companies to small start-ups, are leaders in a wide variety of sophisticated technologies and industries, including chemical and biotechnology, cloud service and SaaS providers, artificial intelligence, autonomous vehicles, drones, marine and aerospace, electronic equipment, sensors, telecommunications and satellites, semiconductor design and manufacture, quantum computing, computer software and hardware, encryption, digital media and broadcasting, financial and investment services, and defense. Wilson Sonsini's team has developed a nuanced understanding of how export control and economic sanctions issues affect these and other industry sectors. We position our clients to address diligence questions in these areas that help facilitate a variety of financings, mergers, and other investment transactions.  

Our team provides practical guidance regarding compliance with the U.S. Export Administration Regulations (EAR), U.S. International Traffic in Arms Regulations (ITAR), EU Dual Use Regulation, trade and economic sanctions administered by the Office of Foreign Assets Control (OFAC) and the UK’s Office of Financial Sanctions Implementation (OFSI), anti-boycott laws, the Foreign Trade Regulations, and Customs and international trade regulations.  The firm's attorneys regularly work with companies to resolve complex jurisdiction and classification issues, devise licensing strategies, design compliance programs tailored to specific client needs, provide employee compliance training, prepare voluntary disclosures, assist with transactional due diligence, obtain Customs rulings and country of origin determinations, and conduct internal audits and investigations. Further, we regularly advise and represent companies and individuals in enforcement-related matters, both administrative and criminal, before OFAC, OFSI, the Justice Department, the Commerce Department’s Bureau of Industry and Security, and the State Department’s Directorate of Defense Trade Controls. 

Overview

In today’s expanding global economy, companies increasingly need access to understandable and comprehensive advice on compliance and enforcement issues related to U.S., UK, and EU economic sanctions and export controls laws and regulations.

Wilson Sonsini's team of export controls and sanctions attorneys in the U.S. and UK, anchored by several Chambers-ranked individuals is uniquely qualified to assist companies with a broad array of regulatory and compliance issues, including developing customized advice on how these regulations apply to their products, software, technology, and services; preparing for and conducting civil and criminal government investigations and enforcement actions; and developing easy to implement compliance policies and procedures to prevent such investigations and actions. 

The firm's clients, which range from large multinational companies to small start-ups, are leaders in a wide variety of sophisticated technologies and industries, including chemical and biotechnology, cloud service and SaaS providers, artificial intelligence, autonomous vehicles, drones, marine and aerospace, electronic equipment, sensors, telecommunications and satellites, semiconductor design and manufacture, quantum computing, computer software and hardware, encryption, digital media and broadcasting, financial and investment services, and defense. Wilson Sonsini's team has developed a nuanced understanding of how export control and economic sanctions issues affect these and other industry sectors. We position our clients to address diligence questions in these areas that help facilitate a variety of financings, mergers, and other investment transactions.  

Our team provides practical guidance regarding compliance with the U.S. Export Administration Regulations (EAR), U.S. International Traffic in Arms Regulations (ITAR), EU Dual Use Regulation, trade and economic sanctions administered by the Office of Foreign Assets Control (OFAC) and the UK’s Office of Financial Sanctions Implementation (OFSI), anti-boycott laws, the Foreign Trade Regulations, and Customs and international trade regulations.  The firm's attorneys regularly work with companies to resolve complex jurisdiction and classification issues, devise licensing strategies, design compliance programs tailored to specific client needs, provide employee compliance training, prepare voluntary disclosures, assist with transactional due diligence, obtain Customs rulings and country of origin determinations, and conduct internal audits and investigations. Further, we regularly advise and represent companies and individuals in enforcement-related matters, both administrative and criminal, before OFAC, OFSI, the Justice Department, the Commerce Department’s Bureau of Industry and Security, and the State Department’s Directorate of Defense Trade Controls. 

Alerts
China’s Enhanced National Security “Great Wall”– Supply Chain Security, Red Lines, and Blocking Rules
Recently, the People’s Republic of China (PRC or China) introduced further unprecedented national security measures spanning sanctions, supply chain security, and data security, in addition to blocking rules to protect the internal market from the extraterritorial effects of certain foreign regulatory measures. These developments build on the PRC’s already well-established national security framework, and underscore China’s determination to construct a fortified system designed to shield its supply chains and legal order from foreign influences it deems unjustified. These measures increasingly create potential conflicts of law and pose complex compliance, governance, and commercial challenges for businesses striving to navigate multiple major regulatory regimes worldwide.
Alerts
Double Dose of New Tariffs: President Prescribes New Pharmaceuticals and Metals Tariffs
On April 2, 2026, President Trump issued two presidential proclamations: a proclamation imposing Section 232 tariffs on certain branded pharmaceutical products and associated active pharmaceutical ingredients (APIs) (the Pharmaceuticals Proclamation), and a proclamation modifying the Section 232 steel, aluminum, and copper tariffs (the Metals Proclamation).
Alerts
NRC’s Proposed Regulatory Framework for Fusion Machines Reaffirms Existing Export Control Rules
The Nuclear Regulatory Commission (NRC) is proposing numerous revisions to its controls on byproduct material produced by fusion machines. While the primary focus of the proposed rule is the regulatory framework for domestic licensing of the possession, use, and production of byproduct material associated with fusion machines, the proposed rule also includes changes to the definitions of “byproduct material” and “particle accelerator” in the NRC Export Control Regulations (Part 110).
Alerts
U.S. Supreme Court Shakes Up Trump Tariff Tactics
On February 20, 2026, the U.S. Supreme Court issued its much-anticipated ruling in the Learning Resources case, concluding that the tariffs imposed by the Trump administration since February 2025 under the International Emergency Economic Powers Act (IEEPA) were unauthorized. The Court’s landmark 6-3 decision produced seven separate opinions with Chief Justice John Roberts and Justices Sonia Sotomayor, Elena Kagan, Neil Gorsuch, Amy Coney Barrett, and Ketanji Brown Jackson in the majority, holding that “the power to unilaterally impose tariffs of unlimited amount, duration, and scope” required “clear congressional authorization.” This decision affirmed earlier Federal Circuit and Court of International Trade (CIT) rulings rejecting the President’s authority to impose both the “fentanyl-related” (or “trafficking”) tariffs applied to products of China, Canada, and Mexico and the “reciprocal” tariffs applied to products of U.S. trading partners since “Liberation Day” back in April 2025. Notably, the Court’s opinion did not address the availability of or timing for any refunds owed to importers who have already paid the fentanyl-related and reciprocal tariffs.
Alerts
A Mixed Bag of Chips: Significant New Import and Export Changes for Advanced Semiconductors
The U.S. Department of Commerce issued a rule newly permitting certain advanced, H200/MI325X-grade computing chips classified under Export Control Classification Number (ECCN) 3A090 to be eligible for export to China, subject to a case-by-case licensing policy instead of a policy of denial.
Alerts
Not All Drones After All: FCC Exempts Certain Foreign-Made Drones and Critical Components from Covered List and Issues Guidance for DoW and DHS Conditional Approvals
On January 7, 2026, the U.S. Department of Defense, also referred to as the U.S. Department of War (DoW), and the Federal Communications Commission (FCC) issued several follow-on items to the FCC’s December 2025 action that had added all new models of foreign-made uncrewed aircraft systems (UAS) and their critical components to the FCC’s Covered List (Drone Action). If left intact, that action would have functionally banned all new models of foreign-produced drones and their critical components from being imported or sold in the U.S. Instead, these new items substantially update—and clarify—the scope of the Drone Action.
View All
Insights
Alerts
China’s Enhanced National Security “Great Wall”– Supply Chain Security, Red Lines, and Blocking Rules
Recently, the People’s Republic of China (PRC or China) introduced further unprecedented national security measures spanning sanctions, supply chain security, and data security, in addition to blocking rules to protect the internal market from the extraterritorial effects of certain foreign regulatory measures. These developments build on the PRC’s already well-established national security framework, and underscore China’s determination to construct a fortified system designed to shield its supply chains and legal order from foreign influences it deems unjustified. These measures increasingly create potential conflicts of law and pose complex compliance, governance, and commercial challenges for businesses striving to navigate multiple major regulatory regimes worldwide.
Alerts
Double Dose of New Tariffs: President Prescribes New Pharmaceuticals and Metals Tariffs
On April 2, 2026, President Trump issued two presidential proclamations: a proclamation imposing Section 232 tariffs on certain branded pharmaceutical products and associated active pharmaceutical ingredients (APIs) (the Pharmaceuticals Proclamation), and a proclamation modifying the Section 232 steel, aluminum, and copper tariffs (the Metals Proclamation).
Alerts
NRC’s Proposed Regulatory Framework for Fusion Machines Reaffirms Existing Export Control Rules
The Nuclear Regulatory Commission (NRC) is proposing numerous revisions to its controls on byproduct material produced by fusion machines. While the primary focus of the proposed rule is the regulatory framework for domestic licensing of the possession, use, and production of byproduct material associated with fusion machines, the proposed rule also includes changes to the definitions of “byproduct material” and “particle accelerator” in the NRC Export Control Regulations (Part 110).
Alerts
U.S. Supreme Court Shakes Up Trump Tariff Tactics
On February 20, 2026, the U.S. Supreme Court issued its much-anticipated ruling in the Learning Resources case, concluding that the tariffs imposed by the Trump administration since February 2025 under the International Emergency Economic Powers Act (IEEPA) were unauthorized. The Court’s landmark 6-3 decision produced seven separate opinions with Chief Justice John Roberts and Justices Sonia Sotomayor, Elena Kagan, Neil Gorsuch, Amy Coney Barrett, and Ketanji Brown Jackson in the majority, holding that “the power to unilaterally impose tariffs of unlimited amount, duration, and scope” required “clear congressional authorization.” This decision affirmed earlier Federal Circuit and Court of International Trade (CIT) rulings rejecting the President’s authority to impose both the “fentanyl-related” (or “trafficking”) tariffs applied to products of China, Canada, and Mexico and the “reciprocal” tariffs applied to products of U.S. trading partners since “Liberation Day” back in April 2025. Notably, the Court’s opinion did not address the availability of or timing for any refunds owed to importers who have already paid the fentanyl-related and reciprocal tariffs.
Alerts
A Mixed Bag of Chips: Significant New Import and Export Changes for Advanced Semiconductors
The U.S. Department of Commerce issued a rule newly permitting certain advanced, H200/MI325X-grade computing chips classified under Export Control Classification Number (ECCN) 3A090 to be eligible for export to China, subject to a case-by-case licensing policy instead of a policy of denial.
Alerts
Not All Drones After All: FCC Exempts Certain Foreign-Made Drones and Critical Components from Covered List and Issues Guidance for DoW and DHS Conditional Approvals
On January 7, 2026, the U.S. Department of Defense, also referred to as the U.S. Department of War (DoW), and the Federal Communications Commission (FCC) issued several follow-on items to the FCC’s December 2025 action that had added all new models of foreign-made uncrewed aircraft systems (UAS) and their critical components to the FCC’s Covered List (Drone Action). If left intact, that action would have functionally banned all new models of foreign-produced drones and their critical components from being imported or sold in the U.S. Instead, these new items substantially update—and clarify—the scope of the Drone Action.
View All
Affiliated Programs
European Forum on Global Economic Sanctions
As sanctions regimes continue to evolve in scope, speed, and enforcement, compliance and legal leaders face increasing pressure to anticipate risk and respond with precision. This year’s European Forum on Global Economic Sanctions delivers timely regulatory insights, real-world enforcement perspectives, and forward-looking strategies from senior government officials, regulators, and industry leaders. Through industry-led discussions and high-value peer exchange, attendees will gain practical tools to strengthen compliance frameworks, manage exposure, and stay ahead of emerging global risks.
Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
Speaking Engagements
2026 ABA Business Law Spring Meeting
Join Wilson Sonsini partners Michelle Yost Hale and Matthew McDonald, and Of Counsel Seth Cowell, at the 2026 Business Law Spring Meeting, April 16–18 in Atlanta, Georgia.
Speaking Engagements
ACI’s Virtual Passport to Economic Sanctions Proficiency Series
On March 10, 2026, Wilson Sonsini partner Jahna Hartwig will be speaking at the upcoming American Conference Institute’s Virtual Economic Sanctions Proficiency Series. Joined by other panelists, Jahna will participate in the session titled "China: A Comprehensive Review of U.S. Sanctions and China’s Retaliatory Measures." The panel will discuss the essentials of U.S. sanctions on China, provide insights into OFAC’s guidance and how to apply it, explore the Chinese blocking statute, and more. The Economic Sanctions Proficiency Series is part of ACI’s acclaimed Proficiency Series, designed to provide legal, compliance, and regulatory professionals with a structured, in-depth training experience that delivers real-world results. To learn more, please visit their website. 
WSGR Events
Navigating National Security Risks in Life Sciences
As geopolitical concerns create hurdles for cross-border collaboration in biotechnology and life sciences, maintaining visibility into evolving national security and trade requirements is critical for effective global partnering. Wilson Sonsini’s National Security and Trade team invites you to join a webinar exploring recent national security and trade law developments affecting life sciences companies, including how companies are navigating the resulting challenges.
Speaking Engagements
ACI’s Virtual Passport to Proficiency on U.S. Customs Compliance
On January 27, 2026, Wilson Sonsini partner-elect Jahna Hartwig will be speaking at American Conference Institute’s Virtual Passport to Proficiency on U.S. Customs Compliance. Alongside Kelly Herman, Corporate Counsel at nVent, Jahna will lead the session, Strengthening Your Customs Compliance Program and Audit Readiness—and What to Do When Things Go Wrong. They will discuss how to evaluate customs compliance programs, considerations for tailoring a compliance program to a company, and how to manage U.S. Customs and Border Protection inquiries. An immersive, intermediate-level masterclass on compliance, tariff mitigation, and audit readiness, ACI’s Passport to Proficiency on U.S. Customs Compliance brings together customs compliance professionals, brokers, in-house counsel, and outside counsel to discuss best practices for navigating key issues in the industry. To learn more, visit their website. 
View All
Events
Affiliated Programs
European Forum on Global Economic Sanctions
As sanctions regimes continue to evolve in scope, speed, and enforcement, compliance and legal leaders face increasing pressure to anticipate risk and respond with precision. This year’s European Forum on Global Economic Sanctions delivers timely regulatory insights, real-world enforcement perspectives, and forward-looking strategies from senior government officials, regulators, and industry leaders. Through industry-led discussions and high-value peer exchange, attendees will gain practical tools to strengthen compliance frameworks, manage exposure, and stay ahead of emerging global risks.
Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
Speaking Engagements
2026 ABA Business Law Spring Meeting
Join Wilson Sonsini partners Michelle Yost Hale and Matthew McDonald, and Of Counsel Seth Cowell, at the 2026 Business Law Spring Meeting, April 16–18 in Atlanta, Georgia.
Speaking Engagements
ACI’s Virtual Passport to Economic Sanctions Proficiency Series
On March 10, 2026, Wilson Sonsini partner Jahna Hartwig will be speaking at the upcoming American Conference Institute’s Virtual Economic Sanctions Proficiency Series. Joined by other panelists, Jahna will participate in the session titled "China: A Comprehensive Review of U.S. Sanctions and China’s Retaliatory Measures." The panel will discuss the essentials of U.S. sanctions on China, provide insights into OFAC’s guidance and how to apply it, explore the Chinese blocking statute, and more. The Economic Sanctions Proficiency Series is part of ACI’s acclaimed Proficiency Series, designed to provide legal, compliance, and regulatory professionals with a structured, in-depth training experience that delivers real-world results. To learn more, please visit their website. 
WSGR Events
Navigating National Security Risks in Life Sciences
As geopolitical concerns create hurdles for cross-border collaboration in biotechnology and life sciences, maintaining visibility into evolving national security and trade requirements is critical for effective global partnering. Wilson Sonsini’s National Security and Trade team invites you to join a webinar exploring recent national security and trade law developments affecting life sciences companies, including how companies are navigating the resulting challenges.
Speaking Engagements
ACI’s Virtual Passport to Proficiency on U.S. Customs Compliance
On January 27, 2026, Wilson Sonsini partner-elect Jahna Hartwig will be speaking at American Conference Institute’s Virtual Passport to Proficiency on U.S. Customs Compliance. Alongside Kelly Herman, Corporate Counsel at nVent, Jahna will lead the session, Strengthening Your Customs Compliance Program and Audit Readiness—and What to Do When Things Go Wrong. They will discuss how to evaluate customs compliance programs, considerations for tailoring a compliance program to a company, and how to manage U.S. Customs and Border Protection inquiries. An immersive, intermediate-level masterclass on compliance, tariff mitigation, and audit readiness, ACI’s Passport to Proficiency on U.S. Customs Compliance brings together customs compliance professionals, brokers, in-house counsel, and outside counsel to discuss best practices for navigating key issues in the industry. To learn more, visit their website. 
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Josephine Aiello LeBeau
Partner
Washington, D.C.
Josephine focuses on matters related to compliance and enforcement of U.S. export control and sanctions.
  • National Security and Trade
View Profile
Michael S. Casey
Partner
London
Mike Casey is a dual-qualified, Chambers-ranked (Band 1) partner in Wilson Sonsini Goodrich & Rosati’s London office. His practice focuses on advising clients on sanctions, export controls, anti-corruption, and anti-money laundering issues in investigations, counseling, and compliance matters. In addition, he regularly acts as a specialist in mergers, acquisitions, venture financings, lending arrangements, and other types of corporate transactions. He also frequently advises clients on the UK’s National Security and Investment Act and other foreign direct investment review regimes.

Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”

Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.

Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.

Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.

Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
  • National Security and Trade
View Profile
Jocelyn Chow
Partner
Hong Kong
Jocelyn Chow is a regulatory and compliance partner in the Hong Kong office of Wilson Sonsini Goodrich & Rosati. With a focus on antitrust, national security, and international trade matters, Jocelyn advises multinational corporations on all aspects of antitrust law, global economic and trade sanctions, export controls, import controls, rules of origin, and foreign investment controls. She works with companies operating across numerous industrial sectors, including defense, bioscience, advanced engineering and technology, aviation, telecommunications and broadcasting, and financial services.
  • Regulatory
View Profile
Jahna Hartwig
Partner
Washington, D.C.
Jahna Hartwig is a partner at Wilson Sonsini Goodrich & Rosati, where she advises domestic and foreign companies on compliance with international trade laws.
  • Regulatory
View Profile
Stephen R. Heifetz
Partner
Washington, D.C.

Stephen advises clients on laws and policies at the intersection of international business and national security. He previously served in the U.S. government on the Committee on Foreign Investment in the U.S.

  • National Security and Trade
View Profile
Jack Davies
Of Counsel
London
Jack Davies is Of Counsel in the London office of Wilson Sonsini Goodrich & Rosati. His practice focuses on investigations and regulatory compliance matters related to money laundering, economic sanctions, export controls, corruption, and other white collar crime. He also advises clients on the UK’s National Security and Investment Act.
  • National Security and Trade
View Profile
Anne E. Seymour
Of Counsel
Washington, D.C.
Anne Seymour is Of Counsel in Wilson Sonsini Goodrich & Rosati's Washington, D.C., office, where she focuses on issues related to compliance and enforcement of U.S. export control regulations and economic sanctions and U.S. import regulations.
  • National Security and Trade
View Profile
Waqas Shahid
Senior Counsel
Washington, D.C.
Waqas Shahid is senior counsel in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on advising domestic and foreign clients in regulatory, investigative, compliance, and enforcement matters related to national security. 
  • National Security and Trade
View Profile
Grace Beck
Associate
Washington, D.C.
Grace Beck is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on national security and international trade regulatory matters. She advises domestic and foreign entities on matters before the Committee on Foreign Investment in the United States (CFIUS) and other foreign direct investment (FDI) reviews. Grace also counsels clients on compliance and enforcement pertaining to export controls and information and communications technology and services (ICTS) supply chain regulations administered by the Bureau of Industry and Security (BIS), economic sanctions administered by the Office of Foreign Assets Control (OFAC), and anti-money laundering laws administered by the Financial Crimes Enforcement Network (FinCEN) and other financial regulators.

While in law school, Grace served as the legal intern at the U.S. Department of Commerce for the Office of Information and Communications Technology and Services (OICTS) and the Office of Chief Counsel for BIS (OCC/IS), and for the Office of General Counsel at the Defense Intelligence Agency (DIA). Prior to law school, Grace worked as an administrator at a think tank specializing in international affairs and was a restaurateur.
  • National Security and Trade
View Profile
Kevin Chan
Associate
Hong Kong
Kevin Chan is an associate in the Hong Kong office of Wilson Sonsini Goodrich & Rosati. Focusing on national security, trade, and other regulatory matters, he advises multinational clients on economic and trade sanctions, import and export controls, tariffs, rules of origin, customs issues, and broader trade compliance. He also assists with antitrust and competition matters. Kevin works with clients across the aviation, technology, retail, and financial services sectors on internal and government-initiated investigations, strategic transactions, and day-to-day compliance matters.
  • National Security and Trade
View Profile
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People
Josephine Aiello LeBeau
Partner
Washington, D.C.
Josephine focuses on matters related to compliance and enforcement of U.S. export control and sanctions.
  • National Security and Trade
View Profile
Michael S. Casey
Partner
London
Mike Casey is a dual-qualified, Chambers-ranked (Band 1) partner in Wilson Sonsini Goodrich & Rosati’s London office. His practice focuses on advising clients on sanctions, export controls, anti-corruption, and anti-money laundering issues in investigations, counseling, and compliance matters. In addition, he regularly acts as a specialist in mergers, acquisitions, venture financings, lending arrangements, and other types of corporate transactions. He also frequently advises clients on the UK’s National Security and Investment Act and other foreign direct investment review regimes.

Chambers UK noted that Mike is “a one-stop shop for global sanctions advice” who is “very responsive with his provision of highly commercial advice.” The publication also described Mike as “one of the most experienced practitioners in the market” who “understands and takes into consideration any necessary complexities and understands the importance of commerciality when giving recommendations.”

Mike has led numerous internal and government-initiated investigations involving potential violations of sanctions, export controls, anti-money laundering laws, anti-bribery laws, and fraud laws throughout the world. He has also represented individuals in pending and threatened litigation.

Mike regularly advises clients on a wide range of compliance issues. He works with clients to develop and implement state-of-the-art compliance programs, including corporate policies, training programs, and third-party procedures. Further, Mike assists clients with carrying out due diligence for many types of corporate transactions. He has successfully guided dozens of investors and companies through the NSI Act review process.

Prior to joining Wilson Sonsini, Mike was a partner in the London office of Kirkland & Ellis.

Mike is the author of Sanctions Enforcement and Compliance: A Practitioner’s Guide to OFAC, a treatise published by Bloomberg BNA. Additionally, leading legal publications have published more than 45 of his articles. He has been quoted in numerous publications, including The Wall Street Journal, The New York Times, and Global Investigations Review.
  • National Security and Trade
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Jocelyn Chow
Partner
Hong Kong
Jocelyn Chow is a regulatory and compliance partner in the Hong Kong office of Wilson Sonsini Goodrich & Rosati. With a focus on antitrust, national security, and international trade matters, Jocelyn advises multinational corporations on all aspects of antitrust law, global economic and trade sanctions, export controls, import controls, rules of origin, and foreign investment controls. She works with companies operating across numerous industrial sectors, including defense, bioscience, advanced engineering and technology, aviation, telecommunications and broadcasting, and financial services.
  • Regulatory
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Jahna Hartwig
Partner
Washington, D.C.
Jahna Hartwig is a partner at Wilson Sonsini Goodrich & Rosati, where she advises domestic and foreign companies on compliance with international trade laws.
  • Regulatory
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Stephen R. Heifetz
Partner
Washington, D.C.

Stephen advises clients on laws and policies at the intersection of international business and national security. He previously served in the U.S. government on the Committee on Foreign Investment in the U.S.

  • National Security and Trade
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Jack Davies
Of Counsel
London
Jack Davies is Of Counsel in the London office of Wilson Sonsini Goodrich & Rosati. His practice focuses on investigations and regulatory compliance matters related to money laundering, economic sanctions, export controls, corruption, and other white collar crime. He also advises clients on the UK’s National Security and Investment Act.
  • National Security and Trade
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Anne E. Seymour
Of Counsel
Washington, D.C.
Anne Seymour is Of Counsel in Wilson Sonsini Goodrich & Rosati's Washington, D.C., office, where she focuses on issues related to compliance and enforcement of U.S. export control regulations and economic sanctions and U.S. import regulations.
  • National Security and Trade
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Waqas Shahid
Senior Counsel
Washington, D.C.
Waqas Shahid is senior counsel in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where his practice focuses on advising domestic and foreign clients in regulatory, investigative, compliance, and enforcement matters related to national security. 
  • National Security and Trade
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Grace Beck
Associate
Washington, D.C.
Grace Beck is an associate in the Washington, D.C., office of Wilson Sonsini Goodrich & Rosati, where she focuses on national security and international trade regulatory matters. She advises domestic and foreign entities on matters before the Committee on Foreign Investment in the United States (CFIUS) and other foreign direct investment (FDI) reviews. Grace also counsels clients on compliance and enforcement pertaining to export controls and information and communications technology and services (ICTS) supply chain regulations administered by the Bureau of Industry and Security (BIS), economic sanctions administered by the Office of Foreign Assets Control (OFAC), and anti-money laundering laws administered by the Financial Crimes Enforcement Network (FinCEN) and other financial regulators.

While in law school, Grace served as the legal intern at the U.S. Department of Commerce for the Office of Information and Communications Technology and Services (OICTS) and the Office of Chief Counsel for BIS (OCC/IS), and for the Office of General Counsel at the Defense Intelligence Agency (DIA). Prior to law school, Grace worked as an administrator at a think tank specializing in international affairs and was a restaurateur.
  • National Security and Trade
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Kevin Chan
Associate
Hong Kong
Kevin Chan is an associate in the Hong Kong office of Wilson Sonsini Goodrich & Rosati. Focusing on national security, trade, and other regulatory matters, he advises multinational clients on economic and trade sanctions, import and export controls, tariffs, rules of origin, customs issues, and broader trade compliance. He also assists with antitrust and competition matters. Kevin works with clients across the aviation, technology, retail, and financial services sectors on internal and government-initiated investigations, strategic transactions, and day-to-day compliance matters.
  • National Security and Trade
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Related Practices
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Recent Insights
Alerts
China’s Enhanced National Security “Great Wall”– Supply Chain Security, Red Lines, and Blocking Rules
Recently, the People’s Republic of China (PRC or China) introduced further unprecedented national security measures spanning sanctions, supply chain security, and data security, in addition to blocking rules to protect the internal market from the extraterritorial effects of certain foreign regulatory measures. These developments build on the PRC’s already well-established national security framework, and underscore China’s determination to construct a fortified system designed to shield its supply chains and legal order from foreign influences it deems unjustified. These measures increasingly create potential conflicts of law and pose complex compliance, governance, and commercial challenges for businesses striving to navigate multiple major regulatory regimes worldwide.
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Alerts
Double Dose of New Tariffs: President Prescribes New Pharmaceuticals and Metals Tariffs
On April 2, 2026, President Trump issued two presidential proclamations: a proclamation imposing Section 232 tariffs on certain branded pharmaceutical products and associated active pharmaceutical ingredients (APIs) (the Pharmaceuticals Proclamation), and a proclamation modifying the Section 232 steel, aluminum, and copper tariffs (the Metals Proclamation).
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Recent Events
Affiliated Programs
European Forum on Global Economic Sanctions
As sanctions regimes continue to evolve in scope, speed, and enforcement, compliance and legal leaders face increasing pressure to anticipate risk and respond with precision. This year’s European Forum on Global Economic Sanctions delivers timely regulatory insights, real-world enforcement perspectives, and forward-looking strategies from senior government officials, regulators, and industry leaders. Through industry-led discussions and high-value peer exchange, attendees will gain practical tools to strengthen compliance frameworks, manage exposure, and stay ahead of emerging global risks.
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Speaking Engagements
ACI's 12th National CFIUS Conference
On April 21, 2026, Wilson Sonsini partner Joshua Gruenspecht will be speaking as part of the ACI National CFIUS Conference. He and his fellow presenters will address the topic “A Legal and Practical Guide to Mitigation Agreements: Key Legal Nuances and National Security Agreement (NSA) Structures for Dual-Use and Emerging Technology.” This workshop will examine how the Committee is approaching transactions and mitigation involving dual-use and emerging technologies, as well as the evolving landscape of legal and practical considerations affecting National Security Agreements (NSAs). For more information, please visit the event website.
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