Originally Posted by
Clipper801
However, it is also known that consular assistance has been denied to “foreigners” of Chinese origin even though they had entered on a foreign passport.
Because those "foreigners" of Chinese origin were born in China, left for other countries and obtained foreign citizenship, but never renounced Chinese citizenship (either explicitly in writing, or implicitly as per Chinese nationality laws - keywords being "who has settled abroad" as interpreted by the Chinese government)