In the face of what General Motors' CEO Mary Barra calls a "fast-changing market," this week General Motors announced its plans to end the production of certain vehicles, reduce its North American work force by more than 10%, and idle five plants in the United States and Canada. General Motors also announced that it plans to cease operations at two additional (but not yet identified) plants outside of North America by the end of 2019. The moves are intended to save General Motors $6 billion by the end of 2020. While the market reacted positively to the news — shares in General Motors were up 4.8% to close at their highest closing price in recent months — this action by General Motors will no doubt have an impact on its suppliers, as well as sub-suppliers within its supply chain.