In the Kaoko Belt of northwestern Namibia, syn-tectonic granitoids of the Boundary Igneous Complex intruded a NNW-SSE trending suture between the Neoproterozoic Coastal Terrane and Archaean-Neoproterozoic Congo Craton-derived foreland. Typical representatives of this syn-collision igneous association are ca. 550 Ma old K-feldspar-phyric, Bt ± Cam granites-granodiorites of the Amspoort suite, with minor Cpx gabbro and rare two-pyroxene dolerite bodies. Keywords: Whole-rock geochemistry, Pan-African, Damara Orogeny, Boundary Igneous Complex, Kaoko Belt, Namibia.