Bisie is a tin deposit in the Walikale territory of the province of North Kivu in the Democratic Republic of the Congo (DRC), although the name is also sometimes used for the nearby village of Manoire. The mine was formerly an illegal source of an estimated 15,000 tons of tin, or 4% of global production. In early 2018 artisanal mining activity has stopped, and Alphamin Resources Corp., an exploration company, based in Mauritius, is leading an exploration of the site. Bisie mine was established after a hunter discovered cassiterite there, which led to a frenzy.