Annual Report - Franchise Retail Brands, page-80

The auditors did report that:
- notwithstanding that the investment is carried at nil value. they were unable to to obtain sufficient appropriate audit evidence about the carrying value of the investment in Graphenera, and
- in reference to the going concern paragraphs in Note 1. the existence of a material uncertainty that may cast significant doubt about the consolidated entity's ability to as a going concern.

The reference to insufficient appropriate audit evidence would likely indicate that very little evidence was provided re the investment in Graphenera.