“Samsung invested billions in communist China, building factories and directly employing Chinese and North Korean workers there.”
Koreans were early investors in China, and they were the first big players to start the exodus.
The factory being closed, opened in 1992, long before China was in the WTO.
When South Korea deployed the THAAD (THeater Area Air Defense System), the ChiComs began retaliating against Korean businesses in China, driving them out.
Korea is taking hard hits economically from the Chinese drawdown, but they are taking all their medicine up front, and are much further down the road than other big investors.