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Meridian Announces Appointment of Two Non-Executive Directors and Further Board Changes Following the AGM

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Meridian Mining (OTCQX: MRRDF) announced the appointment of Dr. Carlos Vilhena and Mr. Felipe Holzhacker Alves as independent non-executive directors, effective immediately, following its AGM.

Dr. Adrian McArthur and John Skinner have stepped down from the board, with McArthur remaining President and Skinner joining the Advisory Board.

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Positive

  • Two new independent non-executive directors appointed to the board
  • New directors bring over 55 years of combined Brazilian mining and legal experience
  • Board committees strengthened with additions to Sustainability, Safety & Technical and Corporate Governance & Nomination
  • Both new directors classified as independent under UK Corporate Governance Code and NI 52-110

Negative

  • Company President Dr. Adrian McArthur steps down from board position
  • Non-executive director John Skinner leaves the board for an advisory role

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London, United Kingdom--(Newsfile Corp. - June 29, 2026) - Meridian Mining plc (LSE: MNO) (TSX: MNO) (FSE: N2E0) (Tradegate: N2E0) (OTCQX: MRRDF) ("Meridian" or the "Company") is pleased to announce, following the results of the recent annual general and special meeting (the "Meeting"), the appointments of Dr. Carlos Vilhena and Mr. Felipe Holzhacker Alves to the Board of Meridian as Independent Non-Executive Directors, effective immediately.

Mr. Holzhacker Alves has over 20 years' experience in the mining industry having started his career as a mining engineer, then transitioning to the business and finance sector with Rand Merchant Bank. Here, he was responsible for structuring and executing equity and debt deals for mining companies throughout Latin and North America. After spending 10 years in North America, Felipe returned to Brazil in 2009 to serve as fund manager for a family office fund dedicated to junior mining (equity and private equity investments) and in 2011 founded Frontera Minerals, a Brazil focused mining, fertilizer and energy development and investment group. Serving as its CEO since its incorporation, Frontera has created and sponsored several companies/assets, including Morro Verde, one of Brazil's largest independent fertilizer producers (from discovery to production, culminating with a sale-exit to local private equity group), Brasil Graphite and Capim Dourado). Frontera has been directly responsible for the successful discovery, development and production of several mining projects in Brazil (graphite, gold, phosphate, potash, magnesium, lithium and rare earths). Felipe is also former board member of TSX listed Trek Mining until its 3 way merger to form Equinox Gold in 2017. He served consecutive mandates on the board of ABPM (Brazilian Association of Mineral Exploration Companies) and was one of the key members in the establishment of the Brazilian Commission for Resources & Reserves (Brazil's National Mining Agency mineral resources guidelines and equivalent to NI43-101 / JORC), being its first ever President.

Dr. Vilhena has over 35 years' experience as a mining lawyer on complex legal and strategic matters across the mineral resources sector in Brazil. Until the end of 2024, he was a partner at Pinheiro Neto Advogados-one of Brazil's most respected law firms where he led the Mining and Government Relations practices for nearly 25 years. Carlos has advised major and junior mining companies, governments, industry associations, multilateral institutions, and commercial banks on all aspects of mining law. His expertise spans regulatory frameworks, permitting, M&A, land and community relations, infrastructure, indigenous rights, mineral processing, sales, tax, environmental law, energy, contracts, corporate governance, financing, litigation, legislative advocacy, risk assessment, and public policy. Carlos currently serves as a director of TriStar Gold, an advisory board member of the Brazil-Canada Chamber of Commerce in São Paulo, Secretary of the Section for Energy, Environment, Natural Resources, and Infrastructure Law (SEERIL) of the International Bar Association, Member of the International Committee of the Foundation for Natural Resources and Energy Law (formerly Rocky Mountain Mineral Law Foundation), director of RedMin (Red Latinoamericana deDerecho Minero) and chair of the Royal British Club in Lisbon. He holds an LL.M. in Natural Resources Law from the University of Dundee (CEPMLP), Scotland, and an LL.B. from the University of Brasília.

Mr Holzhacker Alves joins as a member of the Sustainability, Safety & Technical Committee and Mr Vilhena joins the Corporate Governance & Nomination Committee, effective immediately. Messrs. Holzhacker Alves and Vilhena are both considered to meet the requirements to be classified each as an independent director under the UK Corporate Governance Code and independent under NI 52-110.

Immediately following the AGM, as set out in the notice to the Meeting, Dr. Adrian McArthur, the Company's President, and Mr. John Skinner have stepped down from the Board. McArthur, a Company Director since 2020, continues his full-time role as Meridian's President and directorships of certain of the Company's Brazilian subsidiaries. Mr. Skinner, a Non-Executive Director of the Company since 2021, has accepted a voluntary role on the Company's Advisory Board.

Commenting on the new Directors, CEO, Gilbert Clark, said: "We welcome Carlos and Filipe to the Company at a time when we are changing from resource developer to future mine builder and developer. Having two proven Brazilian mining executives join our Board has greatly added to our skills sets, and importantly furthered integrating Meridian into the Brazilian mining industry.

I would like to express my gratitude to both Dr. McArthur and Mr. Skinner for their many years of contribution and guidance to the Board of Meridian."

This announcement is released in compliance with UKLR 6.4.6 and there is no further information to be disclosed under the requirements of UKLR 6.4.8.

On behalf of the Board of Directors of Meridian Mining plc

Mr. Gilbert Clark
CEO and Director

Meridian Mining plc
8th Floor, 4 More London Riverside
London SE1 2AU
United Kingdom
Email: info@meridianmining.co
Ph: +44 (0) 203 930 3145 (GMT)

Media Enquiries:
Gareth Tredway / Saskia Sizen
Tel: +44 (0) 207 920 3150
Email: meridianmining@tavistock.co.uk

Stay up to date by subscribing for news alerts here: https://meridianmining.co/contact/
Follow Meridian on X: https://X.com/MeridianMining
Further information can be found at: www.meridianmining.co

To view the source version of this press release, please visit https://www.newsfilecorp.com/release/303306

FAQ

What board changes did Meridian Mining (OTCQX: MRRDF) announce after its June 2026 AGM?

Meridian Mining announced two new independent non-executive directors and two board departures following its AGM. According to Meridian, Dr. Carlos Vilhena and Mr. Felipe Holzhacker Alves joined the board, while President Dr. Adrian McArthur and non-executive director John Skinner stepped down as directors.

Who are the new independent non-executive directors at Meridian Mining (OTCQX: MRRDF)?

The new independent non-executive directors are Dr. Carlos Vilhena and Mr. Felipe Holzhacker Alves. According to Meridian, Holzhacker Alves has over 20 years in mining and finance, while Vilhena has more than 35 years’ experience as a mining lawyer in Brazil.

How will the new directors at Meridian Mining (MRRDF) contribute to board committees?

The new directors are joining key Meridian Mining board committees. According to Meridian, Mr. Holzhacker Alves joins the Sustainability, Safety & Technical Committee, while Dr. Vilhena joins the Corporate Governance & Nomination Committee, both effective immediately after the AGM.

What roles will departing Meridian Mining (OTCQX: MRRDF) directors retain after leaving the board?

The departing directors will remain involved with Meridian Mining in non-board roles. According to Meridian, Dr. Adrian McArthur continues as full-time President and Brazilian subsidiary director, while John Skinner has accepted a voluntary position on the company’s Advisory Board.

Are the new Meridian Mining (MRRDF) board members considered independent under governance rules?

Yes, both new Meridian Mining board members are considered independent under key governance frameworks. According to Meridian, Messrs. Holzhacker Alves and Vilhena meet independence requirements under the UK Corporate Governance Code and are also independent under Canadian NI 52-110.

Why does Meridian Mining (OTCQX: MRRDF) highlight Brazilian experience in its new board appointments?

Meridian Mining emphasizes Brazilian experience to support its transition from resource developer to mine builder. According to Meridian, both new directors are seasoned Brazilian mining executives, which the company views as strengthening its integration into Brazil’s mining industry and supporting future project development.