Over 30 transnational arbitration proceedings under the Rules of Arbitration of the ICC, ICSID, ICSID’s Additional Facility, LCIA and UNCITRAL. Recent engagements include: Of Counsel to the Office of the Attorney General of a Latin American State in several ad-hoc and institutional transnational commercial and Investor-State arbitration proceedings under the rules of arbitration of the ICC, ICSID, ICSID’s Additional Facility and UNCITRAL and involving several billion US dollars, Co-Counsel to a Latin American State in an ICSID BIT arbitration brought by an investor over the alleged expropriation of its investments in the manufacturing sector (amount in dispute exceeds US$ 1.2 billion), Co-Counsel to a Latin American State in an ad-hoc arbitration with a military contractor over a contract to refurbish two warships (amount in dispute exceeds US$ 450 million), Co-Counsel to a Latin American State in an ICSID BIT arbitration brought by an investor over the alleged expropriation of its investments in the agro-industrial sector (amount in dispute exceeds US$ 230 million).