meet with our experts

Our team is composed of experienced professionals in mining, precious metals trading, and international logistics, dedicated to delivering reliable and transparent services. With deep industry knowledge and a commitment to quality, we ensure every project meets the highest standards from sourcing and verification to secure global delivery. We pride ourselves on integrity, efficiency, and client-focused solutions in every aspect of our operations.

Alice Kerubo

Operations manager

David Mbaka

Logistics Agent

Said Mugambi

worker

lucy njeri

studio executive

we are building the future & restoring the past

We are a forward-thinking company committed to shaping the future of mining and precious metals trade while preserving the value of natural resources. Our work bridges innovation and tradition leveraging modern technologies to extract and deliver essential minerals like gold, iron, and copper, while honoring the heritage and responsibility that come with them.

highly rated & esteemed

With expertise in high-purity gold supply, advanced mining tools, and global logistics, we provide end-to-end solutions that meet international standards. From responsible sourcing and third-party verification to secure export and delivery, every step of our process is built on transparency, efficiency, and trust.

full customer satisfaction

At the core of our operations is a dedicated team of industry professionals who understand both the technical and commercial aspects of the global minerals market. We strive to restore confidence in resource trade by upholding ethical practices, ensuring compliance, and supporting sustainable development.

our latest news & blogs

shares perspectives on our operations

  • Environment
    Environment

    The Company has a long-term vision of environmental stewardship, particularly as an operator in Africa. At Sigma, we have established an Environmental Management Program to ensure our operations comply with all applicable local legislation. Our approach prioritises environmental risk mitigation from the earliest stages of exploration through to post-closure, supported by comprehensive mine closure and…

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  • Community
    Community

    We recognise the significant impact our operations can have on the communities in which we work. At Sigma, we are committed to empowering these communities by investing in programmes that support long-term, sustainable development for local people, their environment, and the broader economy. Our goal is to create a lasting and positive legacy, ensuring that…

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  • Health and safety
    Health and safety

    Safety is non-negotiable at Sigma, and we are committed to achieving the highest global standards to prevent fatalities and injuries. We strive to build a culture where safety and wellbeing are embedded at every level of the organisation. By doing so, we aim to reduce accidents, minimise operational disruptions and costs, and enhance overall productivity.…

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  • Our People
    Our People

    Corporate responsibility starts with our people. We are committed to fair employment practices and ensuring equitable treatment at every level of the organisation. We recognise that a skilled, motivated workforce is essential to success, and we encourage all employees to take ownership of their professional growth while providing the tools and support needed to achieve…

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have any questions for us?

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What types of minerals or materials do you extract?

Our key materials include gold, which is widely found in regions such as western Kenya, as well as copper and iron ore, essential for industrial and construction use. We also handle limestone for cement production, fluorspar used in manufacturing and metallurgy, and soda ash, one of Kenya’s major mineral exports.

Where are your mining operations located?

We extract and work with a diverse range of minerals and natural resources found in Kenya, supporting both local and international markets. Our operations focus on high-value and industrial minerals, ensuring quality, compliance, and responsible sourcing.

Do you follow environmental and safety standards in your mining projects?

Yes, we strictly follow environmental and safety standards in all our mining projects.

Our operations are carried out in compliance with local regulations and international mining best practices, ensuring responsible resource extraction with minimal environmental impact. We implement environmental management systems that focus on land rehabilitation, water protection, and sustainable waste handling.

What is your production capacity and annual output?

Our production capacity and annual output vary depending on the specific mineral, site conditions, and scale of the project. We operate through a combination of small-scale, medium-scale, and industrial mining operations, which allows us to adjust output based on demand and available reserves.

How do you ensure timely delivery and consistent supply to clients?

We ensure timely delivery and consistent supply through a well-structured logistics and operations system designed for reliability and efficiency.

Our supply chain is supported by carefully planned production scheduling, which allows us to maintain steady output and avoid disruptions. We work closely with extraction sites, processing units, and logistics partners to ensure materials are always ready for shipment when required.

Do you offer customized mineral processing or refining services?

Yes, we offer customized mineral processing and refining services tailored to meet the specific needs of our clients and the type of mineral being handled.

Our solutions are designed to accommodate different grades and compositions of materials, including gold, copper, iron ore, limestone, and other industrial minerals. We adjust our processing methods to ensure maximum recovery, improved purity, and optimal efficiency for each project.

What steps do you take to ensure sustainable and responsible mining practices?

We ensure sustainable and responsible mining practices through a structured approach that prioritizes environmental protection, safety, and long-term resource management.

Our operations begin with careful environmental assessments and planning, identifying potential impacts before any extraction activities take place. We implement controlled mining methods that reduce land disturbance and promote efficient use of natural resources.

Who can I contact for quotations or partnership opportunities?

you can use the provided contact details