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

Complete
United Kingdom → Changwon, Gyeongsangnam Do, South Korea
Item Name Destination Amount Conditions
Meals Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 64949 KRW per day Over 5 hours rate: covers subsistence expenses for a period of more than 5 but less than 10 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 147488 KRW per day Over 10 hours rate: covers subsistence expenses for a period of more than 10 but less than 24 hours, measured by reference to the times of arrival in and departure from the foreign country.
Meals and incidentals Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 167991 KRW per day 24 hour rate: covers the total cost of meals and daily hotel-to-office travel for a full 24-hour period.; The actual room rate is paid in addition to this amount (source shows the rate as 'plus room rate').
Lodging Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 277384 KRW per night No specific conditions
Breakfast Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 0 KRW per meal This amount is included in the room rate, so it is not paid separately on top of the lodging rate.
Lunch Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 53447.5 KRW per meal No specific conditions
Dinner Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 71037.5 KRW per meal No specific conditions
Incidentals Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 11276 KRW per day Source row labelled 'Other': other expenses incurred during the day; employers may use the individual meal and other rates instead of the over 5 hour, over 10 hour and 24 hour rates.
Drinks Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 23003 KRW per day No specific conditions
Transport Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 9227 KRW per day Covers daily travel between the employee's hotel and office.
Total residual Seoul (also applies to Ulsan, Busan, Daejon, Jeju Island and Daego), Republic of Korea 167991 KRW per day Total residual rate: intended to cover the total cost of meals in a period of 24 hours plus the cost of daily travel between the employee’s hotel and office; the 24 hour rate is the sum of the room rate and this total residual rate.

Source URL:
https://www.gov.uk/guidance/expenses-rates-for-employees-travelling-outside-the-uk
This source provides official travel rate information from gov.uk.