Reviving this old thread...
The Chinese Embassy in the UK says it will now issue 2-year visas for UK passport holders (and hints at 5- or 10-year visas...)
Chinese Embassy and Consulates in the UK to Issue Two-year Multi-entry Visas to British Nationals
Anyone on here got experience of procuring one of these visas?
Meanwhile, no mention of it on the HK visa-issuing office:
Visa to China
Anyone know if such fantastical things are already or shall soon be available from HK?