If this is debt conversion for one of the directors (they are typically the ones who are racking up debt, in the form of unpaid salaries) then they need to publish an Appendix 3Y (Change of Director's Interest Notice), because it is effectively a purchase of shares by that director. They do not want to risk breaching ASX rules if they are hoping to relist at some stage in the future (has to be before April 2019(?) if my memory is correct. If they don't publish an Appendix 3Y then we can assume that the retired debt was not for a director. I can't think who else it would be for though.
EVM Price at posting:
10.0¢ Sentiment: Hold Disclosure: Held