About Sierra Gold & Diamonds Mining Limited

We are a leading mining company dedicated to responsible exploration and extraction of precious minerals in Sierra Leone, combining cutting-edge technology with sustainable practices.

Premium Gold

Finest Diamonds

100% Sustainable

Our Mission, Vision & Values

Our Mission

To discover, develop, and responsibly extract mineral resources while creating sustainable value for all stakeholders and communities.

Our Vision

To be the most respected and innovative mining company in West Africa, setting global standards for excellence and sustainability.

Our Core Values

Integrity, safety, innovation, environmental stewardship, community engagement, and operational excellence in everything we do.

Company Timeline

15+ Years of Excellence in Mining

2009
Company Founded

Sierra Gold & Diamond Mining Limited established with a vision to unlock West Africa's mineral potential through responsible practices and innovation.

2012
First Concession Acquired

Secured exploration rights for 317.5 km² of mineral-rich territory in Sierra Leone with significant gold and diamond potential.

2016
Advanced Exploration Phase

Implemented state-of-the-art geological surveys, drilling programs, and 3D resource modeling using cutting-edge technology and expertise.

2019
ISO Certification & Compliance

Achieved ISO 14001 environmental management and ISO 45001 occupational health & safety certifications, demonstrating commitment to excellence.

2023
Development Phase Launch

Transitioned from exploration to development phase with plans for production-scale operations and advanced infrastructure development.

Our Technical Capabilities

World-Class Mining Technology & Expertise

3D Geological Modeling

Advanced volumetric modeling and deposit visualization for precise resource estimation

Remote Sensing & GIS

Satellite imagery analysis and mapping for exploration and monitoring

Laboratory Testing

Comprehensive assay analysis and geochemical profiling for accurate grading

Safety & Compliance

Strict safety monitoring systems and compliance tracking for mining operations.

Discover Our Excellence

Explore our comprehensive mining operations, projects, and sustainable practices