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Marianne M. Chao
Of Counsel


(T) +886.2.7712.3212
(F) +886.2.2704.6791


  • Columbia University (LL.M. 1995); National Taiwan University (LL.M. 1990; LL.B. 1987)

Bar Admissions

  • Taiwan and New York

Government Service

  • Advisory Commissioner, Complaint Review Board for Government Procurement of the Taipei City Government (January 2010-present); Commissioner, Referendum Review Committee of the Executive Yuan (July 2009-July 2012); Commissioner, Legal Affairs Committee of the Mongolian & Tibetan Affairs Commission (2009-present)

Marianne Chao's practice encompasses a broad range of construction and infrastructure projects, complex and multijurisdictional arbitration and litigation, commercial dispute resolution, and competition issues.

Marianne represents contractors for government-owned and independent power plants and contractors and designers for LNG/oil infrastructure projects owned by CPC Corporation, Taiwan. She also recently represented an independent power plant in Taiwan in filing administrative appeals and lawsuits to challenge the Taiwan Fair Trade Commission's decision to impose the highest fine ever in Taiwan arising from alleged participation in a cartel.

Marianne has represented the Taiwan Construction Industry Association in obtaining a favorable ruling from the Taiwan Fair Trade Commission to defeat the no-delay-damage clause, a breakthrough development in construction contracts. She led the Matra Transport cases in several highly publicized matters and successfully countered court actions brought by the Taiwan government to set aside and prevent the enforcement of an arbitral award in the amount of NT$2 billion. Marianne has advised on construction projects for CPC Corporation Taiwan, Chunghwa Telecom, CKS Airport Link, Taipei MRT, Taipei 101, Taipower, Taiwan High Speed Rail, Taichung MRT, and power plants.

Marianne is experienced in litigation and arbitration involving multiple jurisdictions and has handled commercial disputes involving disputes between shareholders, issues related to corporate governance, financial institution litigation, and general commercial disputes.

Marianne has been honored in many prominent international legal guides. She has served as an arbitrator in arbitrations conducted in accordance with the Taiwan Arbitration Act and the ICC Rules of Arbitration. She also served as an executive supervisor of the Taiwan Bar Association and president of the International Federation of Women Lawyers, Taiwan Branch.

Honors & Distinctions

  • Chambers Global (2012): leading lawyer for dispute resolution

    Chambers Asia (2008-2015): Band 1 leading lawyer for real estate & project law and leading lawyer for dispute resolution

    Asia Pacific Legal 500 (2006-2015): leading individual for dispute resolution

    Asialaw (2006-2011): leading lawyer for dispute resolution
Marianne Chao