Below are a few relevant figures. I see the claim repeated often that foreign companies can't operate in China. The sales figures of American companies paint a different picture.

  Company - Sales in China - Share in China
  Apple     $44.8 billion    19.6%
  Intel     $14.8 billion    23.6%
  Qualcomm  $14.6 billion    65.4%
  Boeing    $11.9 billion    12.8%
  Micron    $10.4 billion    51.1%
  Broadcom  $9.4 billion     53.7%

The list goes on. S&P 500 firms had nearly $160 billion in sales in China in 2018.

1. https://www.marketwatch.com/story/trade-war-watch-these-are-...