The négociants that came to the site paid 5,000 Congolese francs per sack, or about $2.80. This payment implied an income of roughly $1.05 per team member per day. The children did not actually receive any money; they simply worked to help the family. The heterogenite in Kipushi had a cobalt grade of 1 percent or less, which was much lower than the heterogenite closer to Kolwezi, where cobalt grades could exceed 10 percent.