Just to spark a discussion (and in no way am I suggesting this will happen) I was doing some research last night. Now it's fair to say the ASX has the best part of nothing to say about COMPANY options. What I did find though was a FAQ page that was at least touted as being relevant to options "in general". I suspect though that given some of the language in other answers it was related to put/call option however it did make mention of the fact that the ASX could grant a trading window of 1 hour prior to the expiry of an option for a company that was in suspension;