L1 users: 20 (Ferlus 1996). Ethnic population: 100 (Ferlus 1996). Total users in all countries: 270.
Quang Binh province, Bo Trach district, Tan Trach, 1 or 2 families of Thuong Trach.
8b (Nearly extinct). Language of recognized ethnic group: Chut.
Other dialects or ethnic names: Tu-vang, Pa-leng, Xo-lang, To-hung, Chà-cu, Tac-cui, Nhà Chút.
Also use Vietnamese [vie].
Part of Chút official ethnic community, including Sách, Mày Ruc, and Arem.