februari 1967: Gécamines tekent contract met zuster UMHK

In February 1967, Gécamines signed a technical cooperation agreement with a sister company of the former UMHK, and copper exports were resumed. Although the matter of indemnities for UMHK properties remained in suspense, the accord marked a turning point in relations.

http://www.1upinfo.com/country-guide-study/zaire/zaire170.html