Ann: Notice of Annual General Meeting/Proxy Form 2019, page-17

It only takes a couple of sellers to dump on the stock and down it goes - there's usually overseas sellers first thing in the morning - already recovered some of the loss today and should keep recovering today.
Sept quarter should have been a good cash generating one - over $US10mil($A15mil) so maybe worth hanging onto until the quarterly arrives in two weeks.
You should have some gold exposure as the gold price keeps recovering any weakness and this stock is well-priced.