Cheliax requests that, during this initial period pending a replacement contract, while things are all happening inside Cheliax anyways, two-thirds of the Project's profits go into a Cheliax-internal investment fund, which Keltham promises to actually use for investments that he expects to boost the Chelish economy, including via spending on subprojects of the Project or Project employees and infrastructure; if Keltham at some point wants to relinquish this responsibility he can hand it back to Governance. Profits of the fund go back into the fund itself. They're willing to trust Keltham's promise that the Project won't pay out in salary more than is fair.
There's an attached note in different handwriting saying that parts of Governance aligned to old nobility will be more on board if this fund structure exists, for reasons that are probably not going to be legible to Keltham for a while - to give a not-particularly-accurate summary, they're incentivized to talk as if Keltham will take anything he's given and run to a neighboring country unfriendly to Cheliax, even though this is not true, and adding this fund structure placates them and shows their concerns are being listened-to and they're being respected about this. Keltham should not worry much about this and should leave these factions in Governance to their own delusions, so long as it doesn't actually affect the way anything goes, which they're hoping this structure accomplishes.
...right then. They're sure right that this doesn't sound to him like a consistent agent equilibrium. Possibly some predictor in Governance is bidding up the price on Keltham deciding to take his early profits and go invest in some other country instead? Keltham will ponder whether this reflects some actual state of affairs they aren't telling him about. For the interim contract he'll send back to have the amount be half rather than two-thirds, but otherwise, okay, they're yielding to him enough on other stuff.