ARGO INVESTMENTS LIMITED & AUSTRALIAN UNITED INVESTMENT COMPANY LIMITED AU000000AUI4 & AU000000ARG4
To qualify for ISA inclusion, a share has to be officially listed on a recognised stock exchange (see ISA Guidance https://www.gov.uk/guidance/stocks-and-shares-investments-for-isa-managers#shareinv) or, from 5 August 2013, admitted to trading on a recognised stock exchange in the European Economic Area (EEA) or the UK. From the initial research we have carried out, these shares are listed on the Australian Securities Exchange (ASX) therefore, on that basis, they should qualify for stocks & shares ISA.
See links below.