Some sites, however, like Stellite and Zeerust, continue to treat tailings and to undertake toll treatment for third parties, it added.
The move follows a difficult 2019 for the company, in which chrome prices were low.
"2019 was a bad year for the complete ferrochrome industry, particularly so, in South Africa,” Afrarak chief executive Guy Konsbruck said in a statement accompanying its financial results for last year.
“Whereas our specialty segment performed very well, and our implemented resilience strategies worked out to counterbalance falling market prices, our ferrochrome segment has been struggling,” he added.
Konsbruck cited falling prices, unfavourable rand-dollar exchange rates, very expensive energy and continuous disruptions of energy supply as causes for the heavily losses the group incurred in 2019.
“Afarak, as the smallest of the remaining producers resisted better than others, but heavy losses have been incurred, in spite of huge cost-cutting efforts, including lay-offs and capacity reductions,” he added.