
Following Wonder Africa, financed by three anniversary-celebrating companies, Gerard de Boe created a separate film for each, entirely devoted to their activities. Two of these—Le trait d'union and Diamant, pierre précieuse—were released exclusively in French, while the third, Cobalt au Katanga, also received a Flemish release. This scientific yet accessible documentary presents the industry and social achievements of the Union Minière du Haut-Katanga with clarity, sobriety, and objectivity, offering viewers an insightful glimpse into both enterprise and community impact.
| Release Date | January 1, 1956 | |
|---|---|---|
| Status | Released | |
| Original Title | Koper in Katanga | |
| Runtime | 1h 30min | |
| Budget | — | |
| Revenue | — | |
| Language | Dutch | |
| Original Language | Dutch | |
| Production Countries | Belgium | |
| Production Companies | P.V.B.A. Produktie Gerard De BoeUnion Minière du Haut-Katanga | |