Originally Posted by folie a deux

The scene is in episode 18 of season 3 "D.O.C"

It is about halfway through the episode.

Lostpedia summerizes it very briefly by saying:
Sun goes to her father's office. As she approaches her father in a meeting, one of his men is reporting that they have not yet received the fake construction permit. Mr. Paik comments that the Hanso Foundation is upset because the Paik Heavy Industries did not provide them with some equipment.