I believe that millions of Thai are liable for income tax but never declare or pay it. Consequently, this relief might only be claimed by big spending civil servants and registered companies.
The cylinder in the photo is not floating. It is laying on the ground in shallow running water.
Wait! It could be a torpedo from an early deivery submarine.......????
Wikipedia note:
Expansion[edit]
In 2020, Roi Et airport, would receive 110 million baht to raise its annual handling capacity to 750,000 passengers.[7]
Roi Et airport has commenced it's expansion and renovation project which is currently under construction. This project will increase a passenger handling capacity of the airport to 1.2 million passengers per year and the project will complete in December, 2022.
I think it had a combination diesl/gas turbine propulsion system. The exhaust from the gas turbine would be large diameter compared to diesel. The ship was Chinese built .........????