Welcome to UMA S.A

A friendly space to serve you better

Precious Metal Refining

We use cutting-edge technologies to refine gold, silver, and other precious metals to an exceptional purity of 99.9%

Raw Diamond Trading

As a major player in raw diamond trading, we facilitate access to these precious gems from various verified sources.

Innovation and Excellence

Innovation is our drive. We invest in research and development to stay at the forefront of technology and provide solutions.

United Gemstones Africa and Precious Metals S.A

UMA SA is the Federation of a group of young Africans committed to the sustainable development of Africa's extractive resources and facilitating comprehensive and reliable partnerships aimed at Africa's economic renaissance. UMA SA aims to be one of the most important companies in the marketing, operation, and production of gold, diamonds, and other related substances in Cameroon in particular and around the world in general, including transforming jewelry, traditional art objects in gold, and luxury items in silver and diamond.

Our Services

We are committed to transforming the mining sector in Africa by making it more transparent, ethical, and sustainable.

AOG Technology

Marketing and Distribution

Sustainable Development

What We Do

Need assistance acquiring precious metals or raw diamonds?

UMA S.A is here to offer its expertise and quality services. Our experienced teams are ready to answer your questions, guide you through the purchase process, and provide tailored solutions for your specific needs. Contact us today to benefit from personalized support and exceptional customer service. At UMA S.A, we are always here to help.