hi, dont take this as gospel, but i have looked into it when the...

hi, dont take this as gospel, but i have looked into it when the Nasdaq listing took place and hopefully my memory is ok... BNYMC is the custodian for the shares listed in the US. I expect that they can trade outside of the halt, but i dont know for sure. The key point is, BNYMC does not trade for profit, they are only to balance the price between US listing and ASX listing. they do this by adjusting the volume available on each exchange. So, right now BNYMC hold 43% of shares and therefore 43% of the companies shares are for trade in the US stock exchange. There is no conspiracy around BNYMC they just provide balance. they take a management fee, but they do not profit from moving the shares. When their holding goes up, available shares on the ASX for trade goes down. As they do not trade for profit i expect that they can trade during a halt.
good luck for tomorrow