General Motors (GM) will lay off more than 800 workers form its Detroit-Hamtramck Assembly Plant as it looks to retool the facility for the production of its electric vehicles in 2021. The layoffs affect 814 hourly and salaried employees and will become effective on Feb. 28, according to GM’s WARN filing with the state of Michigan.

The WARN letter also indicated that about 31 hourly and three salaried employees will be laid off by March 20 with two more hourly employees laid off by March 27 and another two hourly employees laid off by April 3.

GM spokesman, Dan Flores told the Detroit Free Press that about 753 UAW workers will remain employed with the company and be offered buyouts or jobs at other General Motors plants, which is expected to begin in January.

"As previously announced, production of the Chevrolet Impala and Cadillac CT6 at Detroit-Hamtramck Assembly will be complete in early 2020," Flores told the news outlet. "We have job opportunities for all D-Ham team members covered by the UAW-GM National Agreement. We expect to have opportunities in Michigan and Ohio."

The decision to retool the Detroit-Hamtramck Assembly plant comes amid a new four-year contract for GM with the UAW, where it was decided to keep the plant open to produce electric vehicles. The UAW went on a 40-day strike, beginning in September. Through the agreement with the UAW, GM said it would invest $3 billion into the plant and employ 2,225 workers at the facility.

Shares of GM stock were up 1.08% as of 10:58 a.m. EST on Wednesday.