cant get the spout off

Hi all;

I cant get the spout of the OG portafilter of a 2009 GC (see below, i assume it was never screwed of)

any tips on how to pursuade it to come of?

thanks

https://preview.redd.it/5cn85taw4z0f1.png?width=1177&format=png&auto=webp&s=4676396a26ecc7b1945aee911e8bba4da6ad67d0