Complex sentence: It was announced there will be more than 530 workers will be laid off in the Mississauga and Oriskany plants which the Mississauga workers staged a wildcat work stoppage to protest in employee frustration at the slow pace of winding-down talks.
Split into simpler sentences: It was announced that more than 530 workers will be laid off in the Mississauga and Oriskany plants. The Mississauga workers staged a wildcat work stoppage to protest in employee frustration at the slow pace of winding-down talks.