This Journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Articles from this Journal can be submitted to institutional repositories, under the following conditions:

1. Always upload the final publishers’ version, as published on the SciELO SA web page.
2. Acknowledge the Southern African Institute of Mining and Metallurgy (SAIMM) as the publisher.
3. Cite the article as part of the metadata and include the DOI as part of the citation to the article.
4. Acknowledge any funders and copyright ownership as part of the item metadata when uploading the article to the repository.