No further details regarding the changes were released.
Late last month Central revealed it is investigating options to spin off its coal assets in the Pedirka Basin, Northern Territory, to maximise shareholder value.
The company said that while the assets had potential to be highly valuable, their poor market visibility thanks to its focus on oil and gas meant the market currently assigned little value to them.
The halt will last until the earlier of an announcement being made available to the market, or the opening of trade on Thursday 17 May.
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