The first item in this ticket has been dealt with by De-listing both chemicals from the Inventory. Australia has apparently notified the Rotterdam people so in due course it might be included in the appropriate Annex of the Rotterdam Convention.
https://www.industrialchemicals.gov.au/news-and-notices/australias-rotterdam-convention-authority-notified-chemicals-cas-608-93-5-118-74-1
CAS Number 608-93-5
Chemical Name 1,2,3,4,5-pentachloro- (PeCB)
CAS Number 118-74-1
Chemical Name Benzene, hexachloro- (HCB)
Accordingingly the first item is Done.