L1 users: 120,000 (1994 census).
Maniema province: Kasongo territory, Maringa and Mulu collectivités; small area in Sud-Kivu province.
South Binja, Binja (Soe, Sole), Semulu (Kisembombo, Nyembombo, Semolo), Semalinga, Kwange, Mamba (Kyenyemamba). Kwange and Mamba dialects may be separate languages. Lexical similarity: 55% with Bembe [bmb]; 50% with Lega-Mwenga [lgm], Lega-Shabunda [lea], Buyu [byi], Mituku [zmq], and Enya [gey]; 40% with Nyanga [nyj]; 34% with Bangubangu [bnx]; 32% with Komo [kmw].
Most speak Binja dialect. Semulu dialect is spoken in the northeast, Semalinga in the west. Also use Congo Swahili [swc].
Christian, Muslim, traditional religion.