Note:  Do not rely on this information. It is very old.

Khas Khos

Khas, Khos, a group of wild tribes of North Laos, in the mountains near the Mekhong river, north of Luang Prabang. They regard themselves as originally Chinese from the Tien-tsang Hills, Ta-li district, although MacLeod affiliates them to the Kuy of Camboja. The type appears to be more Chinese than Annamese, and they shave their head, leaving a pigtail in the Chinese fashion. They have a large number of silver ornaments chased with great skill and taste.