UPDATED: 1/14/14 2:24 pm ET - adds correction
Editor's note: Denso has revised its original square footage figure for the building it acquired next to its office in Southfield, Mich. The correct figure is 81,000 square feet.
DETROIT -- Denso International America Inc. said it is expanding its North American headquarters in suburban Detroit.
The supplier purchased an 81,000-square-foot building next to its current campus in Southfield, Mich., Terry Helgesen, senior vice president of industry operations, said at a news conference today at Detroit auto show.
The new facility will include r&d labs and testing of electric vehicle, direct injection, alternators, HVAC, and infotainment and connectivity components.
The $10 million investment was spurred by rapid growth in North America, Helgesen said.
Last year, Denso announced a $750 million investment in the U.S, including 1,200 new jobs over a four-year period. Helgesen said the supplier is ahead of schedule and has already hired 1,100 in the U.S., including hundreds at its plant in Battle Creek, Mich.
Denso has hired 425 in Michigan since last year's announcement and continues to reach the goal of investing $150 million in the state.
"When expanding your r&d capabilities, sometimes you need a little more room," Helgesen said.
As part of the expansion, Denso is hiring 176 new employees in engineering, sales and technical jobs through 2015, he said.
As part of its manufacturing efforts, Denso is doubling its previously announced investing by adding an additional $55 million and 130 new jobs to its plant in Athens, Tenn.
Denso is roughly 22 percent-owned by Toyota Motor Corp.