Under the deal, the Japan International Cooperation Agency (Jica) will lend Thailand 38.2 billion yen or 10.7 billion baht for the construction project.
For supply and services procurement, a preferential 0.40% annual interest rate applies, plus advisory fees of 0.01%. There is also a front-end fee at 0.20% of the credit line.
The repayment period is 20 years, with a six-year principal grace period.
With no procurement restrictions, Thailand can buy materials, equipment and services from any country so long as it uses an international auction method.