About MBR
MBR – Minerais do Brasil
MBR is a Brazilian mineral-development company focused on identifying, de-risking and transforming underdeveloped mineral opportunities into structured higher-value projects.
The company integrates geology, process technology, permitting, engineering, industrial development and capital structuring to progressively unlock value from mineral assets in Brazil.
Our model
From mineral opportunity to structured development
MBR was established around a simple development thesis: mineral opportunities can gain substantial value when geology, processing technology, permitting, engineering and capital are developed as an integrated strategy.
- 01Identify
- 02De-risk
- 03Integrate
- 04Develop
Flagship development
Natércia — our flagship development
The Natércia Critical Minerals Project is MBR's flagship development and the first major application of the company's integrated mineral-development strategy. The project brings together geological development, permitting, hydrometallurgical process development and existing industrial infrastructure within a progressive pathway toward higher-value critical-mineral products.
Alongside Natércia, MBR continues to evaluate and develop additional mineral opportunities aligned with its broader mineral-development strategy.
Development philosophy
Building value through de-risking
Technical foundation
Build geological and process understanding before committing to larger-scale development.
Progressive scale-up
Advance through staged validation, pilot development, engineering and industrial implementation.
Strategic integration
Combine technical development, permitting, infrastructure and appropriate capital structures around each mineral opportunity.
Leadership
Luís Augusto Vieira

Founder & CEO
Entrepreneur and mineral project developer focused on mining, mineral processing and industrial development in Brazil.
He leads MBR's strategy for mineral asset development, technology integration and strategic partnerships.