About us

Ana Cristina Cabral has over 20 years of experience as a senior banker at global investment banks in New York, London and São Paulo. Ms. Cabral is a former Head of Lat. Am. Capital Markets at Goldman Sachs in New York and a former Managing Director at the firm. Ms. Cabral has been involved in a large number of transactions over her career, totaling more than US$100 billion, five of which won the prestigious IFR “Deal of the Year” award, including the privatization of Vale in 1996 and the acquisition of Inco by Vale in 2006. Ms. Cabral has an MBA degree from Columbia Business School and a Master in Finance degree from London Business School. Ms. Cabral serves on the Advisory Board of Columbia University Global Centers and is a CCEC board member of The American School of São Paulo.

Mr. Talbot is a proven and experienced operator, who exceled in metallurgical processing, mine operations and development in his previous roles. He has held leadership roles at successful lithium pioneer producers for over a decade, including Galaxy Resources (now Allkem) and Bakita (now Sinomine Resource Group). He holds a bachelor’s degree in chemical engineering with Honours from University of Witwatersrand.

With a career spanning 33 years, Caio Araújo started at PwC as an auditor and advising companies in the global capital market. He was the controller of the CSN Group for more than 12 years, having worked in M&As and in the IPO of CSN Mineração S.A. Before joining Sigma in June of this year, Caio was director of controllership and treasury at V.tal Rede Neutra de Telecomunicações S.A. Caio is a graduate in business administration and accounting sciences and holds an MBA in Production Engineering from Escola Politécnica da USP and an MBA in Corporate Finance and Investment Banking from Fundação Instituto de Administração-FIA.

Marina is graduated from Pontifícia Universidade Católica de São Paulo, with more than eight years of experience in office and management of legal departments and expertise in M&A, Contracts, Litigation, Compliance, Regulatory, Corporate & Government Affairs, Crisis Management, among others in the Mining, Banking, Food, Agribusiness, Consumer, Oil & Gas and Hospital sectors.

Jamie is an experienced mining capital markets executive with a background in private equity and investment banking. Before joining Sigma, Jamie was Director of Investment Management at Waterton Global Resource Management, a leading independent private equity platform focused on the resource sector with $1.75B in AUM. At Waterton, Jamie led deal origination, structuring and execution from initial investment through exit. Jamie began his career in investment banking with Red Cloud Securities, providing M&A and capital raising advisory services to mining companies. Jamie is a CFA charterholder and holds an MBA degree and a Bachelor of Science with Honours degree from Queen’s University.

Paula joined Sigma Lithium in August 2023 as Chief Legal Officer. Paula has over 17 years experience as a corporate lawyer and built her career as an M&A and private equity lawyer in top ranked local and foreign lawfirms. Before joining Sigma, Paula acted as legal executive in large corporations, managing multidisciplinary teams and complex corporate governance structures. Paula has also held positions as a legal executive abroad, having worked in New York, Houston and Mexico City.

Daniel is Chief Communications Officer at Sigma Lithium. He was previously a Senior Advisor for the Turnaround & Transformation and Corporate Finance & Strategy practice areas of the Boston Consulting Group. Prior to that, he was Head of Investments of RK Partners and an investment officer at Angra Infra.

Daniel also held investment banking positions at Goldman Sachs in Sao Paulo and with JP Morgan in London. He holds an MBA from The Wharton School of the University of Pennsylvania and a BS in Electrical Engineering from Tufts University

Rapha Dias began his professional career as an auditor at Deloitte Brasil, in the São Paulo/SP office, serving several Agribusiness clients. Still at Deloitte, he did an International Assignment for almost two years in the office in San Jose, California/USA. Later, he joined DuPont do Brasil as the Technical Accounting Manager Latin America, then became the Internal Controls Manager for Latin America and, finally, assumed the chair of Country Controller for Brazil. Ather that, he joined Nike do Brasil as the Controlling Director for Nike do Brasil. Before joining Sigma, he was at Cargill do Brasil, first as the Accounting & Finance Lead, and second as the Regional Controller for Latin America based in São Paulo/Brazil, also acting as Statutory Director of Cargill Brasil, Director of Cargill Foundation and CargillPrev.

Rapha holds a degree in Economics from Universidade Presbiteriana Mackenzie and Accounting from Universidade Paulista, with an MBA in Agribusiness from USP/ESALQ. He just started a M.Sc. in Administration at Instituto de Ensino e Pesquisa – INSPER, with an expected conclusion in April 2025. In addition to the Six Sigma Green Belt certification and being a Brazilian CPA. With extensive training and strong leadership skills, he brings 22 years of extensive experience in Finance, Accounting, and Internal Controls.

Fádwa Andrade holds a degree in Social Communication, a postgraduate degree in Business Management from the Pontifícia Universidade Católica of Minas Gerais and an Master Business Administration from the renowned Fundação Getúlio Vargas, in addition to being a specialist in the global agenda of Human Rights. With more than 20 years of experience in the mining sector, she has worked as a Senior Executive of Sustainability, Communications and Human Rights at companies such as Vale, Kinross Gold Corporation, AngloGold Ashanti and Norsk Hydro.

Ligia has over 20 years of experience as a Senior Consultant, Professor and Researcher at Fundação Getulio Vargas on Human Rights and Business, Corporate Strategic Planning and Corporate Governance practices in accordance with ESG performance standards.

She holds a PhD in Business Law and Corporate Governance from University of São Paulo, having done research exchange at La Sapienza-Roma and IE Business School in Madrid. In those areas, Ligia is also experienced on working in large law firms.

Forerunner – in Brazil – of the creation of metrics and diagnostic evaluation surveys for the implementation of corporate policies focused on human rights, ethical standards of performance, innovation and diverse collective intelligence.

She has experience in institutional relations and public policy through dialogue with various stakeholders, formulating interaction channels, including the various instances of Public Authority.

Ligia is a member of several boards, including FIESP, Conselho de Líderes da CNI, Energy Transition Committee of CDESS, Global Compact UN, Women’s Entrepreneurship Committee (Ministry of Economy), Ambassador of Zumbi dos Palmares College and at Grupo Mulheres do Brazil.

In that last institution, which engages more than 120,000 women, she is Director of Institutional and Government Relations since its conception.