Update at June, 2019 - the March, 2019 crash-out has been delayed, but that does not apply to earnest Britain-China cooperation - Sino-UK dialogue yields dozens of outcomes.
The 10th China-UK Economic and Financial Dialogue has just concluded in London. China will help Britain in its soon-to-be developing country status by offering openings in financial and banking services, among many other programs to help British companies. From the short article -
Christopher Bovis, a professor of international business law at the University of Hull, said this round of dialogue signified the importance of the future of Sino-UK trade relations, with an emphasis on large infrastructure projects and financial services.
"Both economic sectors will benefit enormously from Chinese investment in the UK, and China is expected to reciprocate with more market access to its evolving economy," he said.
Funny, I didn't hear much support from Britain for Hong Kong protesters in the recent extradition law conflict.
Shuang Yin Win-Win February, 2019
Now that a crash-out Brexit seems all but assured, where will Britain turn for trade deals? The kind of relationship that the British government wanted – like that of Canada or Norway with the EU – takes years to negotiate, under favorable circumstances. There has been discussion for more than ten years that the special relationship between the US and Britain - forged from the mid-19th century and cemented between President Roosevelt and Prime Minister Churchill in World War II – is no longer so compelling. The EU without Britain is still a huge and attractive market for US trade in both directions.
As of March 29, 2019 – in a bit more than a month - there will be hundreds of treaties and agreements to negotiate, suddenly, quickly, and in great detail. Some agreements will probably get done – ability of British truck drivers to deliver goods through the Chunnel into EU turf, and ability of airplanes to take off from Heathrow bound for destinations in Europe using parts and crew that, without certification by the EU, would be not allowed.
But where can Britain turn for trade deals, quickly, without years of complicated negotiations? What large trading partner is willing to set aside the details of complex agreements when mercantile interests, not to mention future geopolitical support, are at stake? What large trading partner can act quickly, based on personal leadership from a president or prime minister or general secretary?
In October, 2015, a few months before the Brexit vote, Xi Jinping visited the UK, and demonstrated his prescience –
"The UK has stated that it will be the Western country that is most open to China," Xi told Reuters ahead of his first visit to the country as president.
"This is a visionary and strategic choice that fully meets Britain's own long-term interest."
UK Prime Minister David Cameron, speaking on CCTV, China's state broadcaster, said the visit would mark a "golden era" in the two countries' relationship.