  We report further results from the program of lunar occultation (LO)
observations started at the 2.4-m Thai National Telescope (TNT) in 2014. We
have recorded LO events of 18 stellar sources, leading to the detection of four
angular diameters and two binary stars. With two exceptions, these are
first-time determinations. We could resolve angular diameters as small as 2
milliarcseconds (mas) and projected separations as small as 4mas. We discuss
the individual results, in the context of previous observations when available.
The first-time angular diameters for o Psc, HR 6196 and 75 Leo are in good
agreement with expected values, while that of Pi Leo agrees with the average of
previous determinations but has a higher accuracy. We find a new secondary in o
Psc, as previously suspected from Hipparcos data. We also obtain an
accuratemeasurement of the companion in 31 Ari, revealing inconsistencies in
the currently available orbital parameters. The TNT, equipped with the fast
ULTRASPEC imager, is the leading facility in Southeast Asia for high time
resolution observations. The LO technique at this telescope achieves a
sensitivity of i up to 10mag, with a potential to detect several hundreds of LO
events per year.
