South Korea on Tuesday completed the ratification process for three key International Labor Organization (ILO) conventions, which have long stalled due to objections from businesses and conservatives.

The Ministry of Employment and Labor presented the instruments of ratification of the conventions on workers’ rights and forced labor to the U.N. agency via video links. They will come into effect on April 20, 2022, one year after the event.

“We will continue to work together with labor and management to ensure basic workers’ rights are sufficiently guaranteed and healthy labor-management relations based on autonomy and responsibility are developed,” Minister Lee Jae-gap said during the event.