contains information or matter: (i) that was communicated in confidence by, or on behalf of, a foreign government, an authority of a foreign government or an international organisation (the foreign entity) to the Government of the Commonwealth, to an authority of the Commonwealth or to a person who received the communication on behalf of the Commonwealth or an authority of the Commonwealth (the Commonwealth entity); and (ii) which the foreign entity advises the Commonwealth entity is still confidential; and (iii) the confidentiality of which it would be reasonable to maintain — Section 33(1)(b) of the Archives Act 1983