Please get your facts right

Two American men who used to trade around HongKong and China has been blocked from entering in Macau one of the Cities in China to trade

1/ The two people refused entry to Macau are 1 woman and 1 man
2/ They did not 'used to trade' , they are the President and the Chairman of Amcham
3/ They went to Macau to attend an annual Amcham event, not to trade.

https://www.reuters.com/article/us-hongkong-amcham/hong-kong-amcham-president-denied-entry-to-macau-idUSKBN1YB09G

Taking a sentence from your own post "small problem can widen up to be larger if care and immediate solutions are not taken." That is exactly what you are doing yourself by not fact checking what you write.