Rinse the mung bean sprouts in cold water and discard the bad beans if any.
Boil the water in a pot and add the salt. Once the water starts to boil, plunge the mung bean sprouts into the pot and leave them for 1-2 mins.
Drain the water and run cold water on the sprouts for 1-2 minutes.
Squeeze the mung bean sprouts with your hands to remove excess water. Put the mung bean sprouts into a mixing bowl and add the seasoning sauce. Mix them well.