Rub salt lightly into pork and refrigerate on a covered tray for 1 hour.
Blanch pork in boiling water for 2 minutes, then remove from pot with a slotted spoon and set aside.
Heat oil in a wok over high heat and fry green curry paste, lime leaves, lemongrass, galangal and ginger, stirring constantly, for 2 minutes or until mixture begins to colour. Add