A number of "Hayabusa" were also given to the 16th Hiko Chutai based at Lampang in the North of Thailand as replacements to their older Nakajima Ki-27 (Nates).
Bellow are captions from a short vintage news-clip showing the arrival of the new fighters at Don Muang and how the Thai markings were applied. HERE you can see the whole clip.
Note the different camouflage pattern with the aircraft in the top photo. The aircraft in the captions does not seem to have any previous unit markings.
The exhaust indicates that this is a Nakajima Ki-43 Model II and from the camouflage pattern this is probably the same aircraft in the two captions at the top. Question: what is the thing that covers the machine gun muzzle at the edge of the cowling???
I think this is the same "Hayabusa" with the one in the above caption. As you will notice in the clip, it has hinomaru on the wings. These were later erased and the Thai markings were applied together with camouflage.