Tonix Pharmaceuticals’ plan to build a new biomanufacturing center just north of the Ravalli County Fairgrounds in Hamilton is hoped to bring more high-tech bioscience jobs to the Bitterroot Valley.

Tonix CEO Dr. Seth Lederman and Hamilton Mayor Dominic Farrenkopf signed the agreement on Wednesday at the Ravalli County Economic Development Authority. The preliminary septic work has been done and construction will begin in the spring for the building to be complete in about three years.

“This will be the third of our buildings — we have a facility near Frederick, Maryland, a process development facility south of Boston,” he said. “This will be the later stage one where products are vetted. Here we can supply the world.”