In Guangxi, Sui is spoken by about 7,000 people in Hechi and 1,900 in Nandan County (e.g., in Longmazhuang 龙马庄 of Liuzhai Township 六寨镇, with the autonym ) [REF].
However, Castro (2011) proposes that the Sandong dialect is divided further into two more subdialects, Central (spoken in Sandu County) and Southern (spoken in Libo County).