C179 Take the Formula from the Princess

"You have settled the refugees well. The refugees are all here. They shouldn't be disguised anymore. "

The princess praised from the bottom of her heart.

Qin Feng smiled. "Not all of them are here. There are still some more on the mine."

"Mines? There are mines in Ninghai County? Coal or gold mines?"

The princess's eyes lit up again, clearly very interested.

"Neither, it's nitrate mine