Sasol’s shares surged the most in more than a decade after heads rolled at the synthetic fuels and chemical group, which also promised to root out a "culture of fear" that had caused billions in cost overruns at its Lake Charles Chemicals Project in the US.

Ahead of Sasol’s results presentation on Monday, departing board chair Mandla Gantsho said an independent review into the troubled US project found that the problems mainly related to a group of individuals in the management team who fostered a "culture of fear".

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