MONTGOMERY, Ala. (AP) — A Korean company that makes seats for Kia and Hyundai vehicles says it plans to rapidly grow its workforce to go along with a new $50 million Montgomery plant. The Montgomery Advertiser reports executives of DAS North America want to expand their workforce from 100 Alabama employees to about 400 workers over the next four years. The company's workers have started production using a temporary facility in Hope Hull. Employees are scheduled to move into a new 300,000-square-foot factory at Montgomery Industrial Park next year. Site work on the new plant is expected to begin in two weeks. Company executives say they plan to gradually add workers in groups of 50 to 60 in the coming years, with hopes of reaching 400 employees in 2018.