Diana Tsutieva

Representative Experience

Investor-State Arbitration Disputes

• Sanitek v. Armenia. Counsel to the Republic of Armenia in this ICSID arbitration under the provisions of the Lebanon-Armenia and Canada-Armenia BITs relating to claims under two waste management concessions.  
• Chevron Corporation (U.S.A.) 2. Texaco Petroleum Company (U.S.A.) v. The Republic of Ecuador. Counsel to Ecuador in the damages phase of the investment arbitration involving BIT claims arising from a massive environmental litigation in Ecuador against Chevron. 
• Niko Resources v. Bangladesh, Bapex and Petrobangla. Counsel to Bangladesh and its State entities in a dispute before ICSID concerning the causes and impacts of two gas blowouts.
• Anglo American v. Bolivarian Republic of Venezuela. Counsel to Venezuela against a UK mining company in an ICSID Additional Facility arbitration concerning the termination of a nickel concession.
• Merck Sharpe & Dohme (I.A.) v. The Republic of Ecuador. Counsel to the Republic of Ecuador in an UNCITRAL arbitration under the Ecuador - U.S. bilateral investment treaty arising from the alleged treatment of a foreign investor by the Ecuadorean judiciary.    
• Murphy Exploration & Production Company-International v. The Republic of Ecuador. Counsel to the Republic of Ecuador in an UNCITRAL arbitration under the Ecuador – U.S. bilateral investment treaty arising from changes in domestic legislation pertaining to the exploitation of oil resources in Ecuador.
• Ping An Life Insurance Company of China, Limited & Ping An Insurance (Group) Company of China, Limited v. The Kingdom of Belgium. Counsel to Belgium in an ICSID arbitration under the China-Belgium bilateral investment treaty arising from measures in the financial services sector. The case was dismissed for lack of jurisdiction over the investor’s claims.
• European American Investment Bank AG (Austria) v. The Slovak Republic. Counsel to the Slovak Republic in an UNCITRAL arbitration under the Austria-Czech and Slovak Republic bilateral investment treaty arising from changes in the Slovak health insurance sector. The case was dismissed for lack of jurisdiction over the investor’s claims.
• Achmea B.V. v. The Slovak Republic. Counsel to the Slovak Republic in an UNCITRAL arbitration under the Netherlands-Slovak Republic BIT arising from alleged measures in the health insurance sector. The case was dismissed for lack of jurisdiction over the investor’s claims.
• Gold Reserve v. Bolivarian Republic of Venezuela. Counsel to Venezuela against a Canadian gold mining company in an ICSID Additional Facility arbitration concerning gold concessions and environmental rights.
• Vannessa Ventures Ltd. v. Bolivarian Republic of Venezuela. Counsel to Venezuela against a Canadian mining company in an ICSID Additional Facility arbitration arising from the cancellation of a gold mining contract, under the Canada – Venezuela bilateral investment treaty. The tribunal found Venezuela not liable for breach of the Canada-Venezuela BIT.
• Counsel to a state-owned petroleum company in ICC proceedings brought by a consortium in connection with a breach of contract claim relating to enhanced oil recovery techniques.

International Litigation and Arbitration 

• Croatia v. Slovenia (Ad hoc arbitration under the aegis of the European Commission).  Counsel to the Republic of Croatia in arbitration concerning the delimitation of land and maritime boundaries.
• The Republic of Djibouti v. State of Eritrea (African Commission on Human and Peoples’ Rights).  Counsel to Djibouti in an inter-State proceeding involving Eritrea’s detention of Djiboutian prisoners of war.

International Commercial Arbitration Cases

• Counsel to a State-owned naval engineering firm in an ICC arbitration proceeding in connection with breach of contract claims relating to maintenance and repair of two submarines. 

Representation of Sovereign States in US Courts

• Counsel to the Kingdom of Spain in an enforcement action brought by Novenergia, a Luxembourg fund, before the US District Court of the District of Columbia to confirm and enforce an arbitral award issued by an SCC arbitral tribunal under the Energy Charter Treaty.