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About us

Our mission is to support a sustainable energy future by empowering growth in the electric vehicle industry as one of the world’s largest producers of environmentally sustainable lithium

Demand for electric vehicles (EVs) continues
to rise

As governments and corporations globally push to reduce carbon emissions and fight climate change

Increased demand for EVs has created an increase in demand for the raw materials required to build and power these vehicles.

Our 100% owned Grota do Cirilo project in Brazil will help bring more environmentally sustainable lithium concentrate to the global EV supply chain.

Since the inception of Sigma Lithium in 2012, ESG has been at the core of everything we do. We have consistently adhered to the highest standards in this area, from the preservation of regional ecosystems and our transformative social impact on local communities, to our passion for helping supply the global transition to electric energy.

We will continue to lead the way in supporting clean mobility and green energy storage around the world.

Lithium is a key component of the lithium-ion battery used to power EVs

If these minerals are not mined sustainably,
it could undermine the environmental value of electrified mobility. That is why we are developing – as part of our ESG-focused strategy – one of the largest hard rock lithium projects in the world.

Sigma Lithium's key targets that drive progress

Green Power, Transformative Social Impact.

Sustainable

Become a leading supplier of environmentally sustainable lithium concentrate

Net Zero

Reach net-zero by 2025

Recyclable

Produce 100% dry stacked and recyclable tailings for use in other industries

Water Recirculation

Utilize 100% water recirculation through our production process

Hydropower

Power our facilities with 100% green hydropower

Agroforestry

Preserve and develop agroforestry systems in the regional ecosystem

Jobs

Create more than 1,000 direct jobs and 6,500 indirect jobs for local people during Phase 1 construction

Education

Deliver high-quality education in local municipalities

Board of directors

Ana Cabral Gardner
Co-Chairperson and Chief Executive Officer
Ana Cabral Gardner

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.

Marcelo Paiva
Co-Chairperson and Director
Marcelo Paiva

Marcelo Paiva is the Managing Partner and Co-Founder of A10 Investimentos. He is the portfolio manager of A10 FIA, the Corporation’s largest shareholder. Mr. Paiva has over 20 years of experience in asset management and investment banking in New York, London and São Paulo. Prior to A10 Investimentos, Mr. Paiva was a Portfolio Manager at the Mittal Family Office in São Paulo. Previously, he was a Vice-President at the U.K. asset manager Millennium Global in London, which, at the time, had over US$15 billion in assets under management and was one of the largest hedge funds in Europe. Mr. Paiva also held investment banking positions at Credit Suisse in London and UBS in New York. He has a Master in Business Administration from INSEAD in France and is a CFA Charterholder.

Bechara S. Azar
Corporate Director
Bechara S. Azar

Mr. Azar has over 17 years of experience of Canadian and international investment management.

Mr. Azar is the founder and managing partner of JISRAK, a Montreal based research firm specialized in sourcing and oversight of portfolios on behalf of international Limited Partners.
Previously Mr. Azar was a Director at Innocap (a US$ 50 billion alternative investment platform owned by BNY Mellon, Caisse de Depot et Placement du Quebec – CDPQ and BNP Paribas) in Montreal for over 10 years. Mr. Azar also worked for 5 years at HSBC Private Banking in Dubai, Geneva, London and New York.

Mr. Azar holds a MSc in Management from the HEC School of Management in Paris and a B. Eng. Electrical Engineering from the American University of Beirut. He is a certified Financial Risk Manager (FRM), Chartered Investment Manager (CIM) and Chartered Alternative Investment Analyst (CAIA). He is a native Arabic and French speaker.

Cesar Chicayban
Corporate Director
Cesar Chicayban

Cesar Chicayban is the CEO and Managing Partner of Vila Rica Capital, an independent alternative asset manager focused on credit strategies and special situations. He has over 27 years of experience as a senior banker and advisor in New York, Geneva, London and São Paulo. Mr. Chicayban spent 22 years at Citigroup where he was the Global Market Manager for Citi Wealth Management in New York, responsible for over $300 billion in assets. Before that, he spent 6 years at Itaú-Unibanco and Santander advising institutional and retail clients.

Mr. Chicayban holds a B.S. in Economics from the University Federal Fluminense in Rio de Janeiro, an MBA from the University of Rochester – Simon Business School and he completed an Executive Development Program at Harvard Business School. He holds FINRA Series 7, 65and 24 licenses.

Mr. Chicayban serves on the Board of Columbia University Global Center.

José L. F. de Melo
Corporate Director
José L. F. de Melo

José Lucas Ferreira de Melo has over 40 years of experience in Board of Directors, Audit Committees, Banking C-Level, and Audit Firm partner positions.

Mr. Ferreira de Melo was a Board Member and, for 4 years, Chairman of the Audit Committee at B3 S.A. (Brazil’s Stock Exchange). Previously Mr. Ferreira de Melo was Board Member and Chairman of the Audit Committee at Dufry AG (Switzerland); and Board Member at Cetip S.A., International Meal Company S.A. (IMC); Restoque S.A. and Diagnósticos da América S.A.

Mr. Ferreira de Melo was a member of the Audit Committee at Banco Bradesco. He started his career at PricewaterhouseCoopers (PwC) and was a partner from 1993 to 1997.

In addition, Mr. Ferreira de Melo was a Director at CVM (Brazil’s Securities Exchange Commission) and chairman of the National Commission for Audit Rules of the Brazilian Accountants Institute.

For almost a decade Mr. Ferreira de Melo was a C-Level and executive officer at Unibanco S.A. and Unibanco Holdings S.A. Mr. Ferreira de Melo was also an Executive Director at Febraban (Brazilian Banks Federation).

Mr. Ferreira de Melo holds an Accounting Degree from AEUDF. He served as Director at Bienal de São Paulo for 2 mandates.

Alexandre Rodrigues
Corporate Director
Alexandre Rodrigues

Alexandre Rodrigues is an academic focused on the reduction of greenhouse gas emissions.

Mr. Rodrigues is a member of the Board of the Université de Sherbrooke, and for the last 27 years he has been teaching Environmental Management and Sustainability, Environmental Geotechnics and Soil Mechanics.

He has vast and unique experience in geotechnical issues, such as the beneficial use of industrial residues as a substitute for natural soils. Mr. Rodrigues led successful pioneering projects in the proper use of industrial by-products.

Mr. Rodrigues was vice-president of the Canadian Geotechnical Society in the 2000s and is presently a member of the Scientific Advisory Panel of the International Waste Working Group (IWWG).

Mr. Rodrigues has worked as a consultant for several companies in Canada, Europe and South America. Previously, he worked for Serrener Consultation, D&G Enviro-Group and Enge-Rio.

From 2002 to 2015, Mr. Rodrigues also supervised a humanitarian group in Peru, Haiti, Burkina Faso and Malawi.

Mr. Rodrigues holds a B.Eng. from PUC-Rio, Brazil; a M.Sc. (Mineral Engineering) from École Polytechnique de Montréal and a Ph.D. (Civil Eng. & Applied Mechanics) from McGill University.

Management

Ana Cabral Gardner
Co-Chairperson and Chief Executive Officer
Ana Cabral Gardner

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.

Caio Araújo
Chief Financial Officer
Caio Araújo

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.

Matthew DeYoe
Executive Vice President for Corporate Affairs and Strategic Development
Matthew DeYoe

Matthew DeYoe joined the Company as Executive Vice President for Corporate Affairs and Strategic Development on October 26, 2023, based in the United States. Prior this, Mr. Deyoe was the leading coverage research director for lithium and chemical companies over the past four years for Bank of America and has also held positions on the buy-side at hedge funds where he specialized in chemical, lithium, and energy investments. Mr. Deyoe holds a Bachelor of Science degree in Business Administration from Georgetown University and is a CFA charterholder.

Paula Lacava
Director, Legal
Paula Lacava

Paula joined Sigma Lithium in August 2023 as Legal Director. 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 Abdo
Director, Investor Relations
Daniel Abdo

Daniel is Investor Relations Director 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

Jamie Flegg
Director, Business Development
Jamie Flegg

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.

Ligia Pinto
VP of Institutional/Government Relations and Communication
Ligia Pinto

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.

Keith Prentice
Co-General Managers
Keith Prentice

Keith Prentice is a seasoned leader in mine development and construction, with significant experience in Africa and internationally. Keith was formerly the Director of Processing at Sigma Lithium, where he most recently co-led the operational ramp-up of the Greentech Plant. Prior to joining Sigma Lithium, Keith served in leadership roles at Sierra Rutile Limited and Okavango Mining Engineering, where he developed and implemented major capital projects, managed project risk and mitigation, and worked alongside executive management on forecasting and reporting. Keith’s experience also includes roles as General Manager of Business Development at ELB/PBA Engineering and Departmental Head of Process at Kenmare Resources Plc. Earlier in his career, Keith spearheaded mining projects across Africa, and held various managerial positions at De Beers. Keith holds a degree in Extraction Metallurgy from the School of Mines at the University of Johannesburg and a Production Management Diploma from Technikon RSA.

Reinaldo Brandão
Co-General Managers
Reinaldo Brandão

Reinaldo Brandão is a senior mining executive with over 30 years of industry experience in complex mine systems operation from pit to port in global companies of mining and metallurgy. He holds a degree in Filtration Dry Stacking of Iron Ore Tailings from USP – Escola Politécnica da Universidade de São Paulo. Reinaldo has extensive experience in greenfield projects involving R&D and implementation, as well as operations with a focus on sustainability and ESG. Prior to joining Sigma Lithium, Reinaldo was a senior mining and metallurgy consultant at Norsk Hydro, as well as COO of Iron Ore at Anglo American Brazil, and COO and Mining Managing Director (CEO) of Vallourec & Sumitomo Brazil. Reinaldo began his career in mining leadership at Vale, where he held roles including Mining Automation Manager, Mine Operations Coordinator, and various engineering positions.

Reinaldo has a PhD in mine planning from Universidade Federal de Ouro Preto and He also received an MS in Engineering and a Bachelors in Mining Engineering from Escola De Minas.

Iran Zan
Director of Geology
Iran Zan

Iran Zan is a geologist with over 12 years of professional experience in mining. Throughout his career, his work has included exploration and operational geology as well as administrative management in the pre-construction, implementation, and pre-operation phases of lithium and heavy minerals mines. Iran has held senior positions as Director of Community Relations and Institutions and Senior Exploration Geologist at Sigma Lithium over the past seven years. Previously, Iran was a Full Exploration Geologist at Mineração Taboca S.A. and Yamana Gold Inc. Iran holds a bachelor’s degree in Geology and Geosciences from the Universidade Estadual de Campina

Fádwa Andrade
Director of Sustainability
Fádwa Andrade

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.

Corporate Governance

The Board of Directors of Sigma Lithium Corporation (the “Company”) sets high standards for the Company’s employees, officers and directors. Implicit in this philosophy is the importance of sound corporate governance. It is the duty of the Board of Directors to serve as a prudent fiduciary for shareholders and to oversee the management of the Company’s business. To fulfill its responsibilities and to discharge its duty, the Board of Directors follows the procedures and standards that are set forth in these guidelines. These guidelines are subject to modification from time to time as the Board of Directors deems appropriate in the best interests of the Company or as required by applicable laws and regulations.

Commitee Composition

Audit Committee
Compensation & Governance
ESG Committee
Technical Committee
José L. F. de Melo
Chairperson
Member
Bechara S. Azar
Member
Member
Cesar Chicayban
Member
Chairperson
Member
Member
Alexandre Rodrigues
Chairperson
Maria José Sallum
Member
Ana Cabral Gardner
Member
Co-Chairperson
Marcelo Paiva
Member
Member
Vicente Lobo
Co-Chairperson