The government has been really pushing British exports to China for the past 8-10 years now - this is not new."ChinaBuye" has been one of the fastest growing export markets for the UK for quite some time, particularly biotech and services.
It's a good thing. He needs to raise their terrible human rights record - they promised to do something about it when they were going for the Beijing olympics, but nothing seems to have happened.

your hunch is correct--please go to the nearest Chinese embassy commercial section to verify the name of the company----now that you mentioned Hong Kong let me tell you that some so called "ChinaBuye" businessmen are dealing in computer parts that are rejected by quality control of the actual genuine manufacturers---they buy these parts in lots for cheap---recondition them so that they will work 3/6 months at the most and offer them to businessmen from the Indian sub continent------take the power supply for computer as an example--i opened it and found joints and wiring jumpers on the solder side which a new original factory made part is not supposed to have---!!!