Discounting contingent consideration

Hi,

In the SBR specimen exam 1 we have the case below:

Acquisition of 70% of House
On 1 June 20X6, Kutchen acquired 70% of the equity interests of House. The purchase consideration comprised
20 million shares of $1 of Kutchen at the acquisition date and a further 5 million shares on 31 December 20X7 if
House’s net profit after taxation was at least $4 million for the year ending on that date

In the answer section I see that this contingent consideration is not being discounted and I wonder what is the reason.

Thanks for the advise