ISPAC organizing committee is not handling the hotel reservations. Attendees should organize autonomously for the reservations.  

ISPAC is just suggesting the closest hotels to the conference venue:


Starhotels Tourist

Hotel Arcimboldi


Beware:  If any organization is approaching you with lodging support claiming to have connections with ISPAC,  do not answer they are fake.


Please, also consider to make your reservation early. A major event is taking place in Milano starting on June 7th, the "Salone del Mobile" that will attract a huge number of attendees.