South African petrochemical giant Sasol Ltd. said its feasibility studies for a gas-to-liquids and chemicals facility and ethane cracker and associated ethylene derivatives plant in the Lake Charles area are progressing and should be completed in by the end of the year.

Sasol said the decisions to proceed to engineering and design for the facilities, whose combined cost has been estimated at more than $14 billion, will be taken after the studies are complete.

The gas-to-liquids facility would make diesel from natural gas. Ethylene is a building block in alcohol- and plastic-based products

Sasol’s update was part of the company’s annual report for the year ended June 30. Sasol reported earnings of $4.76 per share.