Noting that based on the Auditor-General of South Africa 2019/2020 Annual Report, the Onderstepoort Biological Products Board requested that all tenders awarded in the preceding five financial years, including Good Manufacturing Practice, be investigated, what (a) is the status of the investigation into the specified companies and (b) are the full, relevant details pertaining to all the investigations that were done from 1 January 2019 to date?