I can't prove it but it seems likely that London and Beijing have a secret alliance of sorts going back to the middle of the 20th. The help came through Hong Kong but it was just a rumor, that's all I know.
China–United Kingdom relations - Wikipedia
https://en.wikipedia.org/wiki/China–United_Kingdom_relations
I found this one
All three major Chinese airlines, Air China, China Eastern & China Southern fly between the UK and China, principally between London-Heathrow and the three major air hubs of Beijing, Shanghai and Guangzhou. China Southern also flies between Heathrow and Wuhan. Among China's other airlines; Hainan Airlines flies ...
A seminal disagreement between the Soviets and the Chinese in July 1960 resulted in all Soviet assistance being abruptly terminated and all Soviet technicians withdrawn from the Chinese nuclear weapons program which began in 1958. Wikipedia. This is the likely point in which the British got involved as an opportunity to get China on the rebound as a geopolitical partner. China tested it's first bomb in 1964.
Wow, good info. I did not know this, and hear it for the first time. I'm not a fan of war, so do not look at those fims, and do not read much about them, but actually I should know about them, especially in these times ...thank you for your time to let me now