Many if not most companies that suspend their shares after a...

Many if not most companies that suspend their shares after a trading halt do so because they are not ready to issue the news that they requested the halt to prepare.

Things like capital raisings, joint ventures and acquisitions can take some time to tie up.

Three particularly noteworthy examples are GGG and WLF who each requested suspensions that lasted for months before announcing an acquisition. BTU is currently suspended as well as they work to acquire a new project.

Those three are the more exciting examples but there are many more who simply need a few extra days to finalise what they are going to announce.

I doubt there is anything to worry about in this scenario... just looked at the initial trading halt request and the announcement will be a detailed geological report regarding their main iron ore asset.

How good the report will be is a wait and see but whatever the result they will almost certainly trade again imo.