The official faq says this
"Where can Industrial Complexes be built?
Only the US can build ICs, and they can only be built in territories that are blue (US) or brown (Japanese) AND under US control."
This means the US can build them in Siam, FIC, Ryukyu Is, Bonin Is, Shantung, Manchuria, and Korea.
My question is whether or not Shantung, Manchuria, and Korea are “liberated” back to China and therefore not eligible for ICs. The manual does say that these are Chinese territory under Japanese control at the start of the game.
So when America moves troops into one of these spaces does it gain the IPC value and ability to build an IC there or not?
Finally, can America take control of brown territories controlled by allies (presumably with consent)? For instance, if India or China has taken already control of FIC, can the US drop land troops there, claim America now has jurisdiction, and start taking the IPCs/building complexes?
These are somewhat obscure questions, but any input would be appreciated.