Mars Wrigley also plans to spend the money on manufacturing improvements and food safety advances at their Hackettstown factory. ... NJ lost 34,000 jobs in the past year.

Mars first arrived in Newark during World War II and stayed there until 1958, when it moved operations to Hackettstown. Three years ago, Mars returned to its Newark roots thanks to a 10-year, $31. ...

Mars Wrigley and Hackettstown. The origin of Mars can be traced all the way back to ... The location is home to a corporate office and an M&M factory, ... Not the first unusual New Year's drop in NJ.