The Vietnamese border is home to a number of small Yi groups, all with their unique customs. The Bailuo celebrate their Tiaogong Festival in the fourth lunar month.
2015: http://www.ynfn.gov.cn/rqfn/ShowArticle.asp?ArticleID=42897 There is some more on this here: http://www.hudong.com/wiki/%E8%B7%B3%E5%85%AC%E8%8A%82