My reply from Commsec
Hi Kevin,
Thank you for contacting the International desk regarding your shares.
I can certainly help with your email.
Generally the domestic shares are sent back to the registry and the new shares are issued by them.
Unfortunately, CommSec International can only accept stock transferred via the Broker to Broker ACATS system.
You will need to find a Broker that will accept stock from the Registry DRS.
Please contact the domestic desk to confirm what is required on 13 15 19.
If you have any further questions, please reply to this email or for immediate assistance call us on 1300 361 170 (8am-6pm) on US market trading days or from outside Australia on +612 9115 1531.
Kind regards,
Commsec International Desk