To finalize certification, sign the B Corp Declaration of Interdependence, sign your B Corp Agreement, and pay your annual certification fees. Fees vary by company size. Listed below are the fees for companies based in Africa. Sign up to stay informed as the discount structure is released. Scroll down to see what your certification fee covers.To finalize certification, sign the B Corp Declaration of Interdependence, sign your B Corp Agreement, and pay your annual certification fees. Fees vary by company size. Listed below are the fees for companies based in Africa. Sign up to stay informed as the discount structure is released. Scroll down to see what your certification fee covers.