Energy and chemicals group Sasol reports that construction of its coal destoning plant has been completed and that the facility, which should be ramped up to full production by December, is producing coal with a ‘sinks’ content (rock fragments or other impurities) of between 0% and 1.5%. The brownfield project has involved a repurposing of the Twistdraai export coal plant and an investment of less than R1-billion.