"The workers are willing to work here, but there's not much alternative for them either," he said. "They want to make money, but that means exhaustion. They want a better life, so they decide to work longer."
Samsung declined to respond to China Labor Watch's report. But in Monday's announcement, the company said it had already corrected problems with the way labor contracts were handled, and said employees will receive a copy of the labor contract they sign with their supplier. Samsung also abolished supplier-imposed penalties on workers for absences or lateness, and pledged to find ways to keep workers' overtime within legal limits by the end of 2014.