General Motors is investing another $167 million at its assembly plant in Spring Hill, the automaker announced Tuesday morning.
The new investment is expected to create or retain about 1,800 jobs.
Spring Hill UAW Local 1853 Chairman Mike Herron told Nashville's News 2 the potential is there to nearly double the plant's current workforce of 2,000 auto workers with the expansion, but he could not elaborate.
"They've worked very hard to earn this and I'm just really proud of them and what they do on a daily basis to make this possible," said Herron.
The investment adds an additional $40 million to a previously announced $183 million investment to support a future mid-size vehicle program.
The remaining $127 million will support the production of a second mid-size vehicle.
GM said timing and product specifications for both programs will be shared closer to start-of-production.
"Today's announcement recognizes the commitment of Spring Hill employees and leadership," Mark Reuss, president of GM North America, said in a release. "As a team, they draw upon the plant's unique heritage and dedicated work force to deliver top quality for our customers."
"We're very thankful to General Motors. We're very thankful to this workforce and we are looking forward to the future here in Middle Tennessee," said Herron.
Last summer, workers began making the Chevy Equinox at the Maury County plant, located about 40 miles south of Nashville.