Management

Martino De Ciccio

Martino De Ciccio is a mining executive with 20 years of experience and a proven track record of driving value creation by successfully scaling companies and delivering transformational growth. He has strong expertise in corporate strategy, management, capital markets, corporate finance, and ESG.

In February 2024, Martino was appointed Chief Executive Officer of Montage Gold Corp. (TSX:MAU) to lead the company through its next strategic phase with the goal of becoming a leading African gold producer. Under his leadership, Montage has assembled a team with a strong track record, secured over USD$1 billion in financing, and launched construction of its flagship Koné project which ranks as one of the largest builds currently underway globally. Within the two year of his tenure, Montage’s market capitalization grew from $140 million to over $4 billion, propelling the company’s graduation from the TSX Venture Exchange to the TSX. Martino was named one of the 20 most influential people in the African mining sector by Africa Business+ in 2025.

Martino serves as Chairman of the Board of Directors of Sanu Gold (CSE: SANU) since December 2024 and as a Director on the Board of LunR Royalties (CVE:LUNR) since October 2025.

Before joining Montage, Martino held senior leadership roles at Endeavour Mining (LSE:EDV, TSX:EDV), one of the world’s top gold producers. Starting in 2015 as Vice President of Strategy and Investor Relations, he was later appointed Deputy CFO and Head of Investor Relations in 2023. He played a pivotal role in Endeavour’s evolution from a $250 million market capitalization company into a FTSE100-listed gold major with a market capitalization of over $8 billion. His efforts were recognized with more than 25 investor relations award nominations, including several wins for best-in-class IR in the mining and broader market sectors.

Earlier in his career, Martino played a key role in growing La Mancha Resources from a $20 million market capitalization which culminated in a $500 million take-private. As Strategy and Business Development Manager, he then helped lead the private company’s transformation from an emerging gold producer into one of the largest gold investment funds with cornerstone holdings in Evolution Mining and Endeavour, which was recognized with an Emerging Leader Award.  

In addition to his executive duties, Martino served on the Board of Northisle Copper (2018–2025), participating its growth from a market capitalization of $10 million to over $300 million. In addition, he served on the Board of Bluestone Resources (TSXV: BSR) from September 2023 until its sale in late 2024, contributing to the M&A process through his role on the Special Committee.

Martino holds a Bachelor of Commerce in Finance from McGill University and is a CFA charterholder.

Peder Olsen

Peder Olsen has over 15 years of experience in project development, operational, technical services and executive roles within the mining sector. He has a demonstrated track record in advancing large-scale projects from the initial study stage to the successful completion of construction, particularly in West Africa. 

Peder has played a key leadership role in building the following projects on time and on budget: Endeavour’s Houndé mine in Burkina Faso during 2016-2017, Endeavour’s Ity mine in Côte d’Ivoire during 2017-2019, Adamus' Agbaou mine in Côte d’Ivoire during 2012-2013 and Adamus' Nzema mine in Ghana during 2009-2010. In addition, as Director of Projects for Papillion Resources, he played a pivotal role which culminated in the $620 million sale of the Fekola mine to B2Gold in 2014.

Since 2021, Peder has served as the Founder and Managing Director at Orange Mining, a global mining consultancy firm with a strong African presence, which specializes in offering owners project management, study and construction services, and commercial support including tendering services, project and equipment finance.

Between 2018 and 2019, Peder held the position of Director for Africa and Europe at Ibaera Capital, a Perth, Australia-based private equity fund. Prior to this, from 2015 to 2019, he held various roles with Endeavour Mining, including Senior Vice President – Projects, Mining & Technical Services. From 2008 to 2014, Peder held various Project Director and Engineering roles at Papillon Resources, Ampella Mining, Adamus Resources, and NS Projects.

Peder holds a Bachelor of Applied Science in Construction Management & Economics from Curtin University in Perth, Australia.

Silvia Bottero

Silvia Bottero has more than 20 years of experience in the mining industry with a proven track record of making highly economic greenfield discoveries and in developing brownfield projects up to DFS, notably in Africa. Prior to joining Montage, she held the position of Senior Vice President of Exploration at Endeavour Mining, overseeing all its African exploration activities. Silvia joined Endeavour in 2016 and played a pivotal role in the discovery of +18Moz of M&I gold resources over her eight-year tenure.

Having been based in Abidjan, Côte d’Ivoire, since 2013 through her positions with Endeavour Mining and previously with La Mancha, she has developed a deep understanding of the region’s geological setting and established strong relations with local stakeholders. Over the last decade, she has been credited with the discovery of over 15Moz of M&I gold resources in Côte d’Ivoire, with notably the discovery of +8Moz of M&I gold resources at the Ity mine which transformed the asset from a 50kozpa heap-leach operation to a +300kozpa CIL operation, the discovery of over 3Moz of M&I gold resources at Lafigué which led to a construction decision within 2 years, and most recently the discovery of Tanda-Iguela greenfield property unlocking approximately 4.5Moz of M&I gold resources which has the potential to be a Tier 1 asset. In her roles, Silvia was responsible for overseeing all exploration activities ranging from exploration permit identification and grant application, drill programmes (grassroots, brownfield, near-mine, and resource infill drilling), and activities linked to studies (PEA, PFS and DFS). In addition, Silvia played a key role in the mine permitting process and in ensuring high ESG standards given her involvement with Endeavour’s Economic Development Fund and its Steering Committee. 

Prior to her Exploration Manager position at La Mancha, she held the position of Exploration Manager for West African Minerals in Sierra Leone and Cameroon. Prior to this, she held various positions at AREVA, working across Niger, Namibia, South Africa, Central African Republic, Kazakhstan, Wyoming, and France. 

Silvia holds a Masters in Geology from the Università degli Studi di Genova, Italy, a Post Masters degree in Geosciences from Université Joseph Fournier in Grenoble, France, and a Master of Business Administration degree from Walden University in Minneapolis, USA. Silvia is fluent in English, French and Italian.

Constant Tia

Constant Tia has over 18 years of experience in the mining industry with a strong track record of establishing and leading the finance function across various operations and overseeing major capital projects, notably in West Africa. He has strong expertise across financial reporting, treasury, tax, audit, budgeting, capital management, and financial systems. 

Prior to joining Montage, Constant held the position of regional Chief Financial Officer for Kinross Gold Corporation and was responsible for overseeing the Africa and Chile regions, and previously also the Russian region. His 14-year tenure at Kinross, which commenced in 2010, was marked by a progression of senior leadership roles at mine sites, regional offices, and at the corporate office. Constant played a key role in establishing and leading the finance function at the Tasiast gold mine in Mauritania, initially while at Red Back Mining and thereafter with Kinross. Constant notably had oversight of the execution of a +$4 billion expansion projects at Tasiast which transformed the mine into a top tier operation.  

Before joining Kinross, Constant served as Financial Controller for Endeavour Mining in Burkina Faso in 2010 and Audit Supervisor at PricewaterhouseCoopers in Côte d’Ivoire between 2005 and 2010, where he audited and consulted for numerous clients in the mining industry across West Africa (such as Barrick Exploration, Newcrest, First Quantum, Nordgold, and the Ivorian State mining company SODEMI).  

Constant holds a Master of Science in Commerce from ESCA Business School (National Polytechnic Institute of Yamoussoukro, Côte d’Ivoire), and is a Certified Public Accountant (CPA) in New Hampshire, USA. His credentials include certifications as an Internal Auditor (CIA), Fraud Examiner (CFE), and Project Management Professional (PMP). He is fluent in French, English, Spanish, and several Ivorian dialects.