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Appian Capital Advisory

Appian Capital Advisory is a private equity firm specialising in investments in the metals and mining sector. The company is headquartered in London and focuses on acquiring and developing mining assets globally, with particular emphasis on base metals, battery metals and precious metals. Appian provides capital and operational expertise to mining companies and projects, typically targeting mid-tier and development-stage opportunities. The firm operates across multiple jurisdictions, including Africa, where it has built a portfolio of mining investments. Appian's investment strategy combines financial backing with technical and managerial support to enhance the value and operational performance of its portfolio companies. The firm is active in jurisdictions including Namibia, where it holds interests in zinc and other base metal operations. Appian Capital Advisory was established to capitalise on opportunities in the global mining sector, particularly in undervalued or undercapitalised assets. The firm's team comprises professionals with backgrounds in mining finance, geology, engineering and operations management. Appian typically takes significant equity positions in its investments, working closely with management teams to optimise production, reduce costs and extend mine life. The company has raised capital from institutional investors and high-net-worth individuals to fund its acquisition and development activities.

Appian Capital Advisory News


Iage of the Rosh Pinah mine
Rosh Pinah expansion, Namibia – update
3rd July 2026 By: Sheila Barradas

The project was more than 95% complete as at June 29, 2026. 


An image of the SAG mill at Rosh Pinah Zinc's project in Namibia
RPZ, Appian commission SAG mill for Namibia project
29th June 2026 By: Tasneem Bulbulia

Mining company Rosh Pinah Zinc (RPZ) and investment advisor Appian Capital Advisory have announced the commissioning of the new semi-autogenous grinding (SAG) mill at the miner’s underground... 


Aerial view of Rosh Pinah project
Rosh Pinah expansion, Nambia – update
15th May 2026 By: Sheila Barradas

The project is now more than 90% complete. 


The Omitiomire copper project site
Appian acquires majority stake in Namibia copper project
14th May 2026 By: Creamer Media Reporter

Investment adviser Appian Capital Advisory has acquired a 95% controlling equity interest in the Omitiomire copper project (Omico Copper), in Namibia, and says about $400-million in development... 


The Rosh Pinah Zinc mine
Rosh Pinah Zinc water treatment plant successfully commissioned
12th May 2026 By: Creamer Media Reporter

Investment advisor to long-term value-focused private capital funds Appian Capital Advisory has announced the successful commissioning of a water treatment plant at Rosh Pinah Zinc (RPZ) – an... 


Appian CEO of critical minerals Paulo Castellari
Appian appoints new CEO of critical minerals
15th April 2026 By: Creamer Media Reporter

Investment adviser to long-term value-focused private capital funds investing in companies in metals, mining and adjacent industries, Appian Capital Advisory has appointed Paulo Castellari as CEO... 


Atlantic Nickel's Santa Rita mine
Appian opens office in Latin America to bolster critical minerals investments
2nd April 2026 By: Marleny Arnoldi

Investment advisory firm Appian Capital Advisory has opened a new regional office in São Paulo, Latin America. The new office will support Appian’s investment team in the region, a region which... 


Image of Rosh Pinah mine
Rosh Pinah expansion, Namibia – update
13th February 2026 By: Sheila Barradas

Rosh Pinah Zinc has commissioned Namibia’s first paste backfill plant at the Rosh Pinah mine, a major milestone in the RP2.0 expansion. 


Rosh Pinah Zinc aerial
Rosh Pinah Zinc commissions paste backfill plant
6th February 2026 By: Darren Parker

Mine operator Rosh Pinah Zinc (RPZ) and investment adviser Appian Capital Advisory have announced the commissioning of Namibia’s first paste backfill plant at the Rosh Pinah mine, marking a key... 


Appian talking to US, Australia on critical minerals after IFC deal
3rd December 2025 By: Reuters

Appian Capital Advisory said it is in talks with the US and Australia about replicating the critical minerals investment partnership it recently agreed with a World Bank division. The private... 


Sibanye pays $215m to settle dispute over cancelled nickel mines deal
Sibanye pays $215m to settle dispute over cancelled nickel mines deal
10th November 2025 By: Mariaan Webb

South African precious metals producer Sibanye-Stillwater has agreed to pay $215-million to funds managed by Appian Capital Advisory to settle a legal dispute over the failed acquisition of... 


Atlantic Nickel’s Santa Rita project in Bahia, Brazil
Appian, IFC launch $1bn mining fund for emerging markets
21st October 2025 By: Darren Parker

Investment adviser Appian Capital Advisory has announced the launch of a $1-billion fund targeting critical minerals and mining projects in emerging markets. The fund – launched in partnership with... 


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pqt: 0.054s - ct: 0.101s - 211pq - 2rq
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