My copy finally arrived, so I got a chance to read the rulebook.
Also read the Rule errata here, and something triggered me. (this: The final sentence should read “Industrial complexes cannot be built on islands (Japan is the exception).)
Sooo…now that building units no longer is restricted to a territories’ IPC value: Are we allowed to build multiple IC’s in 1 territory?
I don’t believe anything is mentioned in specific about it in the rulebook regarding building IC’s, apart from the Island restriction, and the 2 or 3 value limit.