It is call contingencies, you make reasonable allowance, if it...

It is call contingencies, you make reasonable allowance, if it is excessive then you inform the market early not 11th hour announcement in September that the September shipment date is out by 3 months.
Credit to them to get a specialised Contractor in to help to make the December date.
Sadly not all are wet weather related, as a shareholder we just don't want MISmanagement to derail and delay the production.
July shipment delayed to September and then to December is simply not acceptable which ever you look at it.