The report says that workers at the eight factories also have to endure "standing for 11 to 12 hours while working, underage workers, severe age and gender discrimination, abuse of student and labor dispatch workers, a lack of worker safety, and verbal and physical abuse."
In addition, there is no internal method for workers to air grievances in order to rectify the problems, the group said.
"This sort of illegal and inhumane treatment is rampant among Samsung's factories and supply chain. We demand that Samsung immediately begin the process of rectifying these abuses. With profits of over $12 billion in 2011, we are confident that Samsung has the wherewithal to systematically improve labor conditions for its network of factories and supplier factories in China," the organization said in its report.