Jeremy WonilChang


Singapur + 65.6233.5503

Jeremy Chang represents clients in a broad range of international arbitration and cross-border disputes. He has acted in investment treaty, commercial, and construction arbitrations conducted under the rules of major arbitrations centers.

Jeremy has advised clients on cross-border disputes arising out of energy, telecommunications, joint venture, M&A, shipbuilding, and large-scale infrastructure and construction projects. He has represented clients in arbitrations under the ICC (International Chamber of Commerce), the SIAC (Singapore International Arbitration Centre), the LCIA (London Court of International Arbitration), the LMAA (London Maritime Arbitrators Association), and the KCAB (Korean Commercial Arbitration Board) rules and in ad hoc proceedings under the UNCITRAL (United Nations Commission on International Trade Law) Arbitration Rules.

Before joining Jones Day, Jeremy practiced at a leading Korean law firm, where he represented clients in a wide variety of industries and managed complex, multijurisdictional disputes in collaboration with international co-counsel in jurisdictions such as the United States, the United Kingdom, Hong Kong, Singapore, British Virgin Islands, Poland, and South Korea.

Jeremy has also advised financial institutions and corporations on matters involving anti-money laundering (AML) laws and regulations and economic sanctions programs administered by the United States Department of Treasury's Office of Foreign Assets Control (OFAC).

Jeremy started his career at a top-tier U.S. law firm in Chicago, where he advised private equity clients on M&A transactions and general corporate matters.


  • Major pharmaceutical company arbitrates claims arising out of Chinese investmentsJones Day is representing a major pharmaceutical company in a Hong Kong International Arbitration Centre arbitration arising out of representations and warranties given in respect of the client's investment in a Chinese drug development company whose senior officers and consultants were subsequently prosecuted in the United States for misappropriation of another pharmaceutical company's trade secrets.
  • The following represents experience acquired prior to joining Jones Day.

    Represented Schindler Holding AG in an investment arbitration against Korea.

    Represented a U.S. cable manufacturer in a KCAB arbitration against a nuclear plant operator involving alleged defects in the nuclear power cables supplied by the client. The case was resolved in the client's favor with a significant cost award.

    Represented a Korean energy company in multiple parallel ICC and KCAB arbitrations arising out of a dispute over market access rights under a series of joint venture agreements.

    Represented a consortium of investors against the host state government in an ICC arbitration involving a dispute over minimum revenue guarantee provisions under a concession agreement for a major public infrastructure project.

    Advised a telecommunications company on multiple disputes arising out of a fiber optics cable infrastructure project in Poland, as well as a mediation that led to a global settlement.

    Advised a client on discovery and enforcement proceedings in multiple jurisdictions spanning Singapore, Hong Kong, the British Virgin Islands, and the United States.

    Defended a construction company against a defect claim raised by an EPC (engineering, procurement, and construction) contractor in an ICC arbitration involving a power plant in Qatar.

    Advised a Korean bank in responding to government inquiries regarding alleged OFAC sanctions violations. Developed a comprehensive compliance program and a detailed remedial action plan.

    Advised a petrochemical company in conducting a comprehensive assessment of its global sanctions and trade compliance system.

    Advised an accounting firm in an internal investigation of an alleged workplace harassment involving the managing director of its branch office.