https://www.grandforksherald.com/news/local/fufeng-group-gets-a-big-city-hall-win-and-looks-poised-to-break-ground
No mention of who repays the state loans, but it looks like most of the infrastructure costs will not be paid by the local government at least. If other local businesses/individuals are hit by the special assessments (and I assume they are), I can understand them being very upset about the project.
https://www.grandforksherald.com/news/local/petitioners-mount-effort-to-force-citywide-vote-on-fufeng-group-plant
I support some limited property tax breaks, but 20 years of +75%, to me, is excessive. With that said, this project should greatly benefit Grand Forks and the state.