Spokesperson Africa Boso said the investigation formed part of the 2017/18 annual regularity audits of all municipalities.
The Pretoria News had contacted the auditor-general (Kimi Makwetu) to establish the authenticity of a draft report dated November 10 that had been sent by the office to city manager Dr Moeketsi Mosola regarding the GladAfrica tender.
In the letter, the auditor-general requested Mosola to respond to negative findings against the procurement of a project management contract awarded to GladAfrica in November last year.
Boso said he would not comment further on the subject as per the mandate of the auditor-general not to do so until after audits had been concluded and reported to council, legislatures and Parliament. The report found that the City transgressed Regulation 32 of Municipal Supply Chain Management, applied to procure a project management contract.