Alternate Names: Cao, Caolan, Lan-Sán Chi, “Mán” (pej.), “Man Cao-Lan” (pej.), San Chay, San Chi, Sán-Chi
Dialects: None known. Maintain some features from Northern Tai ,.
Genealogy:
Demographics: 169,000 (2009 census).
Typology: Tonal.
Nation of Origin: Viet Nam
Other Comments: Sán Chay is an official ethnic community. Possibly came from China in the 19th century. May speak a form of Yue Chinese ,. Traditional religion.