Harmony Gold Mining Company Limited
North West


South Africa


2013 / 10 / 04




1.0% NSR

The Mine Waste Solutions (MWS) project is located near Stilfontein, South Africa within the Witwatersrand Basin. MWS is a gold and uranium tailings reprocessing operation that processes slurry material, reclaimed hydraulically from various tailings storage facilities through three processing plants. The gold plants have the capacity to treat approximately 26 Mt per annum and the uranium plant has a design capacity of 1.2 Mt per year.

The gold and uranium in the tailings at MWS occurred within conglomerate reefs that were mined at the now closed Stilfontein and Buffelsfontein gold mines. The facilities also include a modern tailings storage facility approximately 15 km from the gold plant modules where residues from the treatment plants are deposited.

Recent Activity

    August 2022

    Production at MWS was 93,205 oz of gold in 2022, and guidance for 2023 is in the range from 82,500 to 89,600 oz of gold.

    June 2022

    MWS received the necessary regulatory approvals to proceed with the Kareerand tailings expansion project to ensure the continued retreatment of surface depositions. The project is expected to produce approximately 100,000 oz of gold per year and add 16 years mine life to the operation.

Use the link below to browse a list of available technical reports for the projects within Sandstorm’s portfolio. For the most up-to-date information on each project, please refer to the project operator or developer.

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Annual Report

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