Hi,
If you are providing consultancty services to a Chinese company then it is important to establish where your business customer belongs in order to determine the place of supply. You can see guidance here:
Establishment most closely concerned with the supply
The type of supply you are making would tend to fall under the general rule in which case it would be outside the scope of UK VAT.
However, the place of supply would be deemed to be the UK if you are providing a supply of admission to an event in the UK, say for example a short term educational course.
Please see the guidance below:
Services supplied ‘where performed’
Thank you.