resource update coming shortly, page-33

Have read it and found:

2. An overview of the continuous disclosure decision process
The diagram on the next page outlines the decision making process a listed entity should generally follow, if it becomes aware of information that could have a material effect on the price or value of its securities, to determine whether the information needs to be disclosed under Listing Rules 3.1 and 3.1A and, if it does and the entity is not in a position to issue an announcement straight away, whether it should consider requesting a trading halt:

I am not a lawyer but it seems to me to be logical to follow the last part of
the paragraph and call a trading halt - which is what the company did.

The reason "the entity is not in a position to issue announcement straight away" being that some shareholders i.e. those at the AGM, would be disadvantaged