More than half of workers in South Korea said they have experienced or witnessed abusive practices by principal contractors, a recent survey showed. According to a study released Sunday by Workplace Gapjil 119, a South Korean civic group advocating for workers’ rights, 55 percent of respondents said they had experienced such practices, including discrimination in wages, leave, work equipment and access to welfare facilities. The survey was conducted among 1,000 workers aged 19 and older between