Hyundai says it plans to invest $388 million to build a new plant in Alabama and update an existing facility.

The Associated Press says that the automaker plans to build a 260,000-square-foot engine head manufacturing plant, and update its assembly plant in Montgomery.

The investment would be the company’s biggest in the plant since it opened in 2005. The new facility is scheduled to be operational by mid-2019 and could create 50 new jobs.

New manufacturing technologies will support operations to make new models of the company's Sonata and Elantra sedans.

Hyundai said in March that its redesigned Santa Fe SUV would be assembled entirely in Montgomery. Full production starts June 1. For several years, the plant made only Sonata and Elantra sedans. The plant has nearly 3,000 full-time employees.