> why China is able to close its market to foreign companies? It is not though, many foreign companies do business in China. Even Facebook and Google retain pa

> why China is able to close its market to foreign companies? It is not though, many foreign companies do business in China. Even Facebook and Google retain part of their Ad business. > Same thing for trade sanctions on Iran which impacted European companies but not China (if I'm not wrong). Seems they don't play by the same rules as anybody else. First, EU doesn't like the idea that US sanctioned their companies because of Iran oil, that's why they rolled out some law that protect against it recently. Second, it's just US (and part of other western countries' as they have to eat it) rule, regarding the Iran oil example. China is not playing by that rule simply because so far there is not enough push from US.