Sasol, which shocked the market in May by announcing more cost overruns at its Lake Charles chemicals project in the US, said on Monday the second of seven production units at that plant has come online.

On May 22, Sasol said its Louisiana chemicals project would cost $12.6bn- $12.9bn, almost 45% more than its initial estimate of $8.9bn at the time the investment was announced in 2014.

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