Roberta Bassegio

Roberta Bassegio is a partner in the Energy and Project Finance practices of Paul Hastings and is chair of the firm’s São Paulo office. She practices in the areas of project development and finance, focusing on infrastructure and natural resources. She has represented sponsors, investors, financial institutions, construction conglomerates, and suppliers in some of the most prominent infrastructure projects in Brazil. Her experience also encompasses project structuring, mergers and acquisitions, regulatory and corporate advice, as well as construction and equipment supply agreements. Ms. Bassegio has substantial experience in the power industry, including renewables, in both traditional and greenfield projects.

Among other projects, Ms. Bassegio has assisted high-profile clients in several acquisitions and energy auctions for wind, hydro and thermal power plants, as well as large power consumers within a variety of industries in their power purchase strategies and self-producing power projects. She represented different construction conglomerates in the investment structuring and negotiation of the construction contracts for the Teles Pires and the Belo Monte power plants. She also assisted clients in the logistics sector in the project development and construction of an ethanol pipeline designed to bring ethanol to major consumer centers and ports for export, and in the development of a major port complex in the State of Rio de Janeiro.

Prior to joining Paul Hastings, Ms. Bassegio was a partner in the Infrastructure and Projects and Energy practices at another law firm in Brazil. She also worked with the banking and projects department at an international law firm in New York.

Firm Overview:

Paul Hastings LLP, formerly known as Paul, Hastings, Janofsky & Walker LLP, is an international law firm with 22 offices worldwide. Paul Hastings serves a diverse client base that includes many of the top financial institutions and Fortune 500 companies.

Zineb Idrissia Hamzi

Founded in 1999, HAMZI LAW FIRM is one of the Leading Independent Moroccan Law Firms in Business Law. 

For twenty years, our teams of lawyers and jurists have acquired a proven experience in accompanying investors, both national and international, and usually provide legal assistance,as part of external growth and international development operations.

As Moroccan correspondent to many international law firms, and recognized for its expertise through extensive professional networks, the Firm has become, thanks to its multidisciplinary expertise, a reference and a natural one-stop-shop for companies that appreciate the ability of its teams to respond to all legal issues related to business life, both in counseling and litigation, and their command of several foreign languages (English, Spanish), in addition to French and Arabic.

Thanks to the privileged ties developed with international networks of business law firms present all over the world, the Firm offers legal expertise and an adapted support for all transnational matters.

In order to meet the new needs of our clients, generated by a constantly changing economic, national and international situation, our practice is constantly renewed and enriched, thanks  to the partners, counsels and collaborators who joined us, and who allowed HLF to develop a certain experience, in Real Estate Law and Construction Law, Project Development, and International Mobility.

HAMZI LAW FIRM has also strengthened its Corporate Restructuring practice, in a overall approach, taking into account the diversity and complexity of the legal, social and financial issues our clients are facing.

A long practice of ADR and litigation allows our lawyers, all admitted at the Casablanca Bar to control perfectly, and directly, the preparation and the management of pre-litigation and litigation files, in cutting-edge and innovative areas of expertise, such as IT, IP , and Renewable Energy.

Devoted as “Leading Business Law Firm, in Morocco”, by many prestigious referencing organizations, such as “Chambers Global Guide”, HAMZI LAW FIRM won the Golden Trophy and was awarded the “Best Law Firm in Morocco” during the 2017 Law Trophies, handed out in Paris, by Leaders League.


Charin Satchayan

Areas of Practices and Expertise

Charin’s practices focus mainly on capital markets, Public Private Partnerships, project and project finance, financial regulations, mergers and acquisitions and real estate, both in Thailand and the regions (including Laos and Myanmar).

He also has expertise in the infrastructure sector (in particular, airport and power project), financial and insurance sector, airport and aviation and also property sector.

Experiences in Selected Transactions

He has represented clients in establishment of several property funds for public offering or so called Real Estate Investment Trusts that raised funds from local and international investors to invest in real estate projects in various categories, which include shopping malls, factories, office buildings, residential buildings and hotels.


He has also represented clients in establishment of infrastructure fund to invest in infrastructure assets, including the power plants and airport.

Projects and Project Finance

He has represented client in several projects and project finance both in Thailand and Laos, which include project finance for power plants, a refinancing of oil refinery, a project finance of ethanol plant.


He has represented major commercial banks in Thailand in raising funds from domestic and international capital markets. He has also represented commercial banks in establishing asset management companies and the sales of non-performing loans.

Public Private Partnerships and Privatization

Charin has been retained as a National Consultant in Thailand by Asian Development Bank to work with other international consultants to advise the Thai Government on the Public Private Partnerships for the Government projects (including motorways nationwide). He has also represented clients in several BOT and BTO projects.

Airport and Aviation

He has represented the fund manager and the sponsor in setting up the Samui Airport Property Fund, the first property fund in Thailand that invested in the airport, and has offered investment units to international and domestic investors.

Academic and Professional Qualifications

Executive Master of Business Administration (EMBA), Sasin Graduate Institute of Business Administration, Chulalongkorn University, 1998

LL.M., Cornell University (under patronage of Fulbright Scholarship), 1993

Post Graduate Diploma in Business Law, Thammasart University, 1989

LL.B. (Honours), Ramkhamhaeng University, 1988

Lawyer License from Law Society of Thailand


Ramiro Guevara

RAMIRO GUEVARA, (Senior Partner) born La Paz, Bolivia, October 20, 1954; admitted to bar, 1985, Bolivia.

EDUCATION: St. John’s University, New York (Undergraduate Studies, 1971-1973); Université des Sciences Sociales, Tolouse (Certificat d’Aptitude a l’Administration des Enterprises, M.B.A., 1983); Institut d’Etudes Internationales et de Development, Tolouse (Studies in International Commerce, 1983); Universidad Mayor de San Andrés (Lawyer, 1985); Instituto para el Desarrollo de Empresarios y Administradores (Studies in Banking Law, Labor Law, Warrants, 1987-1989); Institut International de Droit du Dévelopment, Rome (Seminar on Investment Treaties, Investment Contracts and Joint Ventures, 1989). PROFESSOR, International Commercial Law and Commercial Law, Universidad Católica Boliviana.

BOARD OF DIRECTORS: Yacimientos Petrolíferos Fiscales Bolivianos, 1989; Banco Central de Bolivia, 1989; Nacional Financiera (Second Tier Banking Institution), 1996-1997; National Stock Exchange Commission, 1994-1996. General Counsel, Banco Central de Bolivia, 1987-1989. Legal Counsel, Commission of Negotiation of Bolivia’s Foreign Debt, 1987-1989. Ministry of Foreign Affairs, Officer in Charge of Uruguay, Brazil and Western Europe, 1983-1986. Second Secretary, Bolivian Embassy, Israel. Member, Drafting Commissions: Central Bank Law; Arbitration and Mediation Law; Exports Promotion Law; Securities Law; Pension Fund Law; Hydrocarbons Law. Organized Workshops: Investment Methods Using Investment Bonds, International Arbitration, Financial NGO’s Law for Non-Lawyers.

MEMBER: Bolivian Bar Association; International Bar Association; American Bar Association; Bolivian Chamber of Commerce Arbitration Commission.

LANGUAGES: Spanish, English, French and Portuguese.

PRACTICE AREAS: Corporate; Hydrocarbons; Electricity; Water; Mergers and Acquisitions; Banking; Capital Markets; Project Finance; Arbitration.


Ariel Ramos

Ariel Ramos is a partner in the Finance Practice Group at Haynes and Boone, SC in Mexico City. He primarily focuses on transactions related to the development and financing of infrastructure projects, including, among others, power, oil and gas, liquefied natural gas (LNG), government procurement, public-private partnerships (PPP or Proyectos de Prestación de Servicios), toll roads, maritime ports and terminals, water treatment plants, aqueducts and shipping. In addition, he has deep experience and actively participates in real estate, mergers and acquisitions and corporate and debt restructuring matters.

Ariel has advised lenders, developers, buyers and sellers, and governmental entities in transactional negotiations; assisted in preparation of corporate documentation and risk identification, assessment and allocation; advised on negotiation and instrumentation of project agreements, including concessions, power purchase agreements (PPA), long-term service contracts (CPS), long-term supply contracts, public private partnership agreements (PPS), public financed works (OPF), engineering, procurement and construction contracts (EPC), operation and maintenance contracts (O&M), fuel and gas supply and transportation agreements; advised on design and implementation of schemes for the development and financing of infrastructure projects, including preparation of financing and security agreements; performed analysis of permits and governmental authorizations required for the development of projects and real estate transactions; and bid processes and preparation of the bid proposals, among others.

Ariel has served as an adjunct professor of law at Escuela Libre de Derecho, Mexico City, Mexico in Administrative Law Second Course, 2009, and at the Centro de Investigación y Docencia Económicas, Mexico City (CIDE), 2007-2008. He was also Professor of Law of Licenciatura (B.A. equivalent) and Maestría (LL.M. equivalent) degrees at the Universidad Iberoamericana, Mexico City: International Economic Relations, International Contracts, Banking and Contracts, 1996-2002.

Haynes & Boone LLP

Haynes & Boone is an American Lawyer top 100 law firm, with more than 550 lawyers in 13 offices and 30 major legal practices. We are among the largest firms based in the United States. Our growth has been driven by our client service strengths, especially our problem-solving acumen and our ability to collaborate with clients.

It is our mission to be a preeminent law firm that serves clients globally on sophisticated legal matters while maintaining a special culture founded on teamwork, a healthy work environment, and a strong work ethic. While every law firm believes culture is an important component of success, our culture is truly unique. Our culture is defined by our collaborative work environment and by putting the interests of our clients first. It focuses on teamwork, an environment of mutual respect, and a long-term view that supports investing in the future and the success of Haynes and Boone as an outstanding professional service institution.

Amyn Mussa

Amyn Mussa is a partner and head of the energy and infrastructure group at Anjarwalla & Khanna (A&K), one of the premier law firms in Kenya and East Africa. Under Amyn’s leadership, A&K has developed a dynamic energy practice and is regularly engaged on the most significant power and infrastructure projects in Kenya. Amyn acted for the sponsors of the 310MW Lake Turkana Wind Power Project (LTWP), the largest power generation project in Kenya. LTWP won the Project Finance International Award for African Renewable Energy Deal of the Year 2014, as well as the African Renewables Deal of the Year at the IJGlobal Awards 2014 for Europe & Africa. He also acted for the government of Kenya on its first ever PPP coal concessions.

Amyn’s clients include Quantum Power, General Electric, Ormat, Transcentury, Symbion Power, IFC, AIIM, Mitsui, Toyota Tsusho and Google. With over 18 years of experience, Amyn is consistently recognised by international directories, including The Legal 500, IFLR1000 and Chambers Global, which identified him as “one of the leading guys in energy work in Kenya” (2014) and praised him for “his energy and projects expertise” (2015). Amyn has also handled groundbreaking real estate projects in the region, including Two Rivers, Centum Investment’s 100 acre mixed-use development, the largest of its kind in Kenya, and Garden City which will include the largest retail outlet in Kenya. In addition, Amyn is active in the oil and gas sector, representing leading companies such as Tullow and Africa Oil. Amyn is an advocate of the High Court of Kenya and graduated from the University of Houston Law School.