The industrial sector is small, contributing 14.8% of GDP in 2014. Products manufactured include cement, agricultural products, small-scale beverages, soap, furniture, shoes, plastic goods, textiles and cigarettes. Rwanda's mining industry is an important contributor, generating US$93 million in 2008. Minerals mined include cassiterite, wolframite, gold, and coltan, which is used in the manufacture of electronic and communication devices such as mobile phones.