A database is maintained for the caves of Thailand using Speleobase
The cave locations and basic data can be downloaded in a Google Earth data file here: Cave KMZ
Please note that the majority of the co-ordinates have not been checked and have not been obtained with GPS, so may be inaccurate by several hundred metres.
This data file was updated in October 2019 and contains 4,514 cave locations
The cave survey centre-line data can be downloaded in a Google Earth data file here: Survey KMZ
This data file was updated in June 2019 and contains 200 km of cave centre-line data.