Although made in Yunnan, that pretty much all of these swords with this typical silver dress hilt are those made for the Kachin and Rawang Kachin , Nung Kachin,, ot branches of the Lisu peoplei n Burma and Yunnan north Thailand, in short they were made by the Yunnanese but for many peoples in both Burma and Yunnan.
Other tribes who used such swords were the Chins.
The Husa Achang are also makers of many swords and working tools for the Kachin and even the Shans today, so it really is hard to say who in tribal origin race or region would have used this, Kachin dao, would still be the best way to explain this and its origin.
See also:
https://www.vikingsword.com/vb/showthread.php?p=265678