Hyundai Steel has signed a collective bargaining agreement with workers at four subsidiaries, becoming the first domestic company to reach such a deal with subcontracted workers since South Korea’s Yellow Envelope law took effect in March. The Ministry of Employment and Labor said the agreement was signed at Hyundai Steel’s Dangjin plant on Thursday by representatives of Hyundai Steel and Hyundai ITC, Hyundai IEC, Hyundai IMC and Hyundai ISC. Negotiations, conducted separately since Aug. 20, focused mainly on industrial safety and include a commitment to continuously improve the subsidiaries’ safety and health management systems. The law expands primary contractors’ bargaining responsibilities toward subcontracted workers and limits companies’ ability to seek damages from striking workers.