Many had chosen to stay put because most of their manufacturing operations, assets, fixed capital investment, and real estates were hard to move out or be liquidated during the civil war. Everyone wanted to sell but no one wanted to buy. Even 包玉刚 as a vp of Bank of Shanghai with his office next to my mom's didn't leave for HK until the mid 1950 with Mr.李伯忠. My parents didn't leave even with plane tickets in their pockets because they believed in gcd. However, only Mr. 榮毅仁 was "colored" with red.