please search this forum too. I've posted the SPF list 3 times since I joined
. Too bad we can't put a sticky. Then store the link in your favourites. The next time someone stops your package at the post office or immigration - you show them the link if yours is one of those under 'not prohibited/not requiring a licence'
in general: fixed blades, folders, agricultural tools and khuks are fine. daggers, balisongs, autos, gravity knives, propelled knives, double edged, spearguns, CO2 knives, throwing knives (doubled edged), trench knives, cane swords are not. Some items like swords, keris, spears etc require licences/permits. Assisted opening is ok for now, but rumour has it that they may be prohibited in future - it's grey for now as local dealers still sell them. I dislike assisted openers anyway.
but really, look at the SPF document - that's your source. And when in doubt, you can check with SPF too.