Functional management students are divided into sales management students. Mars company was founded in 19 1 1, and its headquarters is in Virginia, USA. It is a private family-owned enterprise with a history of over 100 years. It is a world-renowned food manufacturing and distribution leader with footprints in more than 80 countries and regions around the world. At present, Mars has five business divisions, namely, pet care, Mars Wrigley, Mars food and beverage and systems biology. The full name of ST is SalesTrainee, which means that functional management trainees are divided into sales management trainees.