He originally planned to mine minerals to sell for money. Although it wouldn't fetch a big price, even a mosquito's leg is meat.
Now they're giving it away for free...
"Great King, if you don't give up the child, you can't catch the wolf," the Great Scholar advised.
"That bauxite ore has to be refined into metal through electrolysis, and since we can't generate electricity, we can't use it at all!
"In the past, we could only mine some limestone to make lime and such, but how much profit could that bring?" The Great Scholar lowered his voice, "Now we give them a piece of land, and this Green Grass City will be situated close to us, won't it?"
"Think about it, their city can fly in the sky, and moving to another place is quite easy."
"Great King, the other cities haven't thought of this point yet."