With respect to this provision, chapter 10 is related to the dispute resolution chapter of the agreement, and one of the incentives that parties agreed on as a way to incent compliance with panel rulings through the dispute process is to have the ability to award monetary penalties to ensure that there are monetary consequences associated with not living up to panel decisions. Also, until such time as a party has paid up, there is also the withholding of the opportunity for residents of that party to the agreement to be able to access the dispute provisions. If someone doesn't pay up, then their citizens can't access the dispute process to go after another jurisdiction.
On November 8th, 2017. See this statement in context.