Look up per diem reimbursement rates and mileage deductions for business travel worldwide.

Complete
China → England, United Kingdom
Item Name Destination Amount Conditions
Lodging London, United Kingdom 200 GBP per night Lodging cap per person per day for bureau/director-level (厅局级) and below staff in standard rooms, reimbursed against receipts within the cap; provincial/ministerial-level (省部级) officials may stay in an ordinary suite with actual-cost reimbursement; hotel service charges levied at a fixed percentage are reimbursed at cost, otherwise up to 5% of the lodging cost.
Meals London, United Kingdom 45 GBP per day Meal allowance (伙食费) per person per calendar day counted between the days of leaving and re-entering China; paid to individuals as a lump sum or managed centrally by the delegation; not payable when the foreign host provides meals in cash or in kind.
Incidentals London, United Kingdom 35 GBP per day Incidentals allowance (公杂费) per person per calendar day covering local transport, post and telecommunications, office supplies and necessary tips; when the foreign host provides transport only, staff may draw 40% of this standard.
Lodging Manchester, United Kingdom 140 GBP per night Lodging cap per person per day for bureau/director-level (厅局级) and below staff in standard rooms, reimbursed against receipts within the cap; provincial/ministerial-level (省部级) officials may stay in an ordinary suite with actual-cost reimbursement; hotel service charges levied at a fixed percentage are reimbursed at cost, otherwise up to 5% of the lodging cost.
Meals Manchester, United Kingdom 45 GBP per day Meal allowance (伙食费) per person per calendar day counted between the days of leaving and re-entering China; paid to individuals as a lump sum or managed centrally by the delegation; not payable when the foreign host provides meals in cash or in kind.
Incidentals Manchester, United Kingdom 35 GBP per day Incidentals allowance (公杂费) per person per calendar day covering local transport, post and telecommunications, office supplies and necessary tips; when the foreign host provides transport only, staff may draw 40% of this standard.

Source URL:
http://www.iap.cas.cn/gb/jgsz/glxt/jhcwc/clhysg/gh/202012/P020201230760911279038.pdf
This source provides official travel rate information from iap.cas.cn.