Welcome to join the 8th batch of Korean Programme!
I'm from the 5th batch.
Well actually it's not a diploma course, you will get a degree after 5 years. For the first year and a half, you will study korean language and science and maths subjects. (most probably 6 months in malaysia, and a year in korea for this foundation course, i'm not sure cuz the system has changed last year.) Then depends on your result, you either enter Uni straight away or you will enter technical college for 2 years (diploma course), and 2 more years in Uni for degree.