MTU (Seoul-Gyeonggi-Incheon Migrants' Trade Union)
The minimum wage is fixed anew every year. In 2010 it was 4,110won per hour, and 2011 it is 4,320won per hour, 34,560won per day(8 hours).
A worker working in 40 hours a week will receive 902,880 per month, in 44 working hour a week receive... 976,320won.
And if you work for more than 8 hours a day, you are entitled to an extra 50% of your wage. So overtime allowance is 4,320won+2,160=6,480won per hour. (night work from 10pm to 6am is same)
If employers violate minimum wage law, they can be punished.(sentence of less than 3 years or a less than 20,000,000won fine.)