The 10.5c max is not fixed, it's determined by Rule 7.33 and based on the previous 5 day average.
"A company may only buy back shares under an on-market buy-back at a price which is not more than 5% above the average of the market price for securities in that class. The average is calculated over the last 5 days on which sales in the shares were recorded before the day on which the purchase under the buy-back was made."
KKT Price at posting:
9.4¢ Sentiment: Buy Disclosure: Held