Representative image The pet food maker is adding 220,000 sq ft and two new production lines to its Fort Smith, AR manufacturing plant. Pet food and products firm Mars Petcare is planning to invest $145 million to increase the production capabilities of its wet pet food manufacturing plant in Fort Smith, AR by adding 200,000 sq ft of space to the facility and installing two new production lines, the Arkansas Economic Development Corporation (AEDC) announced in a recent release. “The investment in our Fort Smith manufacturing facility enables us to continue to serve the ever-growing needs of pets and pet parents and represents our commitment to our associates and this community,” Ikdeep Singh, regional president of Mars Petcare North America, said in a statement.