SINO Offer in Mail

So I received my bidders statement from Sino Construction regarding my GUF holdings.

What are people's thoughts on the matter?

It appears that they are offering 6.13c per share (or 7c based on todays close up 3.33%) which is still well below my average of 10c following a brokers recommendation to buy (I could strangle him if he hadn't moved/run interstate).

I don't particularly want Singapore listed stocks as I currently only trade ASX.

What options do we have - is this final, or will the offer be revised if I wait?

Apologies if this has already been covered.