Hi Scrapper, from what I can gather, the 20c price was the IPO placement to the initial investors before the official listing (IPO=Initial Public Offering). The records I found are telling me that it listed on ASX on the 06/06/2016 and it opened @ 0.1686.
I maybe wrong but this is what I found.
You may also check this link https://au.investing.com/equities/9-spokes-international-ltd-historical-data which tells a similar story....
9SP Price at posting:
1.3¢ Sentiment: Buy Disclosure: Held