DMS Powders - the worlds leading supplier of ferrosilicon

DMS Powders business started as part of Amcor in 1949 with the production of Milled Ferrosilicon (FeSi) for use in Dense Medium Separation in the extraction of diamonds. In the 1950’s the production facilities were relocated to the current site near Meyerton. Atomised production commenced in 1967. In 1975 Amcor merged with SA Manganese to form Samancor. A stand alone business entity was created in 2000 with the formation of DMS Powders, a division of Samancor.

After the sales of DMS Powders In April 2006 to a consortium of investors led by Siyanda Inkwali an independent company Dense Medium Powders (Pty) Ltd was established. Siyanda Inkwali currently owns 50% of DMS Powders with de Beers and Invested Bank holding the balance with approximately 25% each.

DMS Powders continues to be the world's leading producer and marketer of ferroslicon powders for DMS applications. We maintain our leadership by investing continuously in our production facilities, our employees and ongoing research and development. By hosting regular technical symposia DMS Powders maintains and builds key relationships with its customers and industry relevant businesses.


  1. Our Vision

    DMS Powders will continue to be a world class market leader in the production, distribution and marketing of dense media ferrosilicon powders.

  2. Our Mission Elements
    • Profitably maintain our core business through excellence in production, distribution and marketing.
    • Develop and enhance global alliances and external relationships to secure optimal market knowledge and increase strategic and operational flexibility.
    • Empower employees with knowledge and resources to act in accordance with core values.
    • Create industry benefit by providing opportunities for shared technical knowledge and skills.
    • Actively manage and build our portfolio of high-quality assets and services.
    • Continue the drive towards a high-performance organisation, in which every individual accepts responsibility and is rewarded for results.
    • Earn the trust of employees, customers, suppliers, communities and shareholders by being forthright in our communications and consistently delivering on commitments.
  3. Our Values
    • Ethics: Uncompromising honesty, integrity, trust and reliability in our dealings with each other.
    • Excellence: Setting high standards in every aspect of business and continuously striving to out perform them.
    • Prosperity: Pursuance of productivity and effectiveness to create a fair value proposition for shareholders, customers, employees and suppliers.
    • Sustainability: An overriding commitment to safety, environmental responsibility and sustainable development.
  4. Key Principles