Natural Resources
Mining investments across copper, precious metals, and critical minerals, with a focus on high-quality projects and clear development pathways.
Family-owned investment platform
Owner-operator capital for essential assets.
Sankaku Capital partners with family offices, institutional investors, and experienced operators to build businesses across natural resources, renewable energy, infrastructure, and private credit.
About Sankaku
We invest where capital, technical judgment, and operating discipline must work together.
Sankaku Capital is a family-owned investment firm focused on building and developing businesses in natural resources and real assets.
We identify underappreciated opportunities, structure the capital required to advance them, and remain actively involved through permitting, community engagement, engineering, financing, operations, and strategic exits.
Our model combines long-term alignment with the speed and accountability of an owner-operator.
4Investment verticals
4Selected portfolio platforms
~30Years of founder experience
1Americas-focused platform
Investment focus
The physical systems behind modern growth.
Sankaku concentrates on sectors where scarcity, infrastructure needs, and disciplined execution can create durable value.
Renewable Energy
Development and financing of clean energy assets, including run-of-river hydropower projects that support long-term energy security.
Infrastructure
Systems and services that enable mining, industrial production, logistics, and the efficient delivery of essential resources.
Private Credit
Structured financing solutions for resource and real-asset projects where flexible capital can unlock defined operating milestones.
Our approach
Hands-on from first diligence to realized value.
We work alongside operating teams and capital partners, with accountability across the entire investment cycle.
01
Identify
Source overlooked assets with strong geological, industrial, or infrastructure fundamentals and a credible route to advancement.
02
Structure
Align operators, family offices, institutional capital, and flexible financing around a clear sequence of value-creating milestones.
03
Build
Support permitting, community relations, engineering, governance, capital markets, and execution through active ownership.
04
Realize
Create optionality through scale, strategic partnerships, public-market access, operating cash flow, or a disciplined exit.
Selected portfolio
Platforms built around real assets and essential supply.
A selection of companies and projects across silver, tungsten, copper, and renewable power.
Precious metals
Titiminas Silver Inc.
A Peru-focused silver developer advancing the high-grade Madre Sierra Silver Mine in the Junín region of central Peru.
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Critical minerals
Pasto Bueno Tungsten Inc.
Responsible redevelopment of a historic high-grade tungsten mine in Ancash, Peru, supported by existing underground development and district-scale potential.
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Copper exploration
Cordillera Copper Inc.
A private exploration and development company advancing two copper projects in Southern Peru, including porphyry-skarn and copper-iron IOCG targets.
Discuss the platform
Renewable energy
Pacha Power
A run-of-river hydropower development platform in Ancash, Peru, centered on five planned stations along the Santa River with 140 MW of combined nameplate capacity.
Discuss the platformFounder and CEO
Built by an operator, not a passive allocator.
Luis Humberto Goyzueta is a natural-resources entrepreneur, investor, and mining executive with almost 30 years of experience across Peru and Latin America. He has founded, financed, developed, and sold mining and energy businesses, and currently serves as President and CEO of Titiminas Silver and as founder and Director of Pasto Bueno Tungsten.
Company builderFounded or co-founded multiple businesses across mining, energy, and real assets.
Mining operatorExperience across asset acquisition, permitting, development, commissioning, and operations.
Energy entrepreneurCo-founded Pure Biofuels, now part of Valero Energy.
Capital marketsExperience structuring private capital, public-market transactions, and strategic exits.
Partnerships
Proprietary assets. Strategic capital. Long-term alignment.
Sankaku Capital works with family offices, institutional investors, strategic operators, and project owners across the Americas.