General Motors.(AUTOMOTIVE)

General Motors recently announced that it will invest more than $300 million to upgrade its manufacturing plant in Tonawanda, N.Y., retaining at least 1,350 fulltime jobs during the next five years. GM's investment will include $279 million to acquire machinery, $21 million for infrastructure and site work, and $1.5 million to train employees.

As part of the agreement, GM will receive $5 million in sub