Companies are pressing the government to better regulate public consultations and votes on mining projects, as they see legal uncertainty as the industry's main current challenge.
Only last year CAR was allowed to resume diamond exports after a three-year ban that tried preventing armed groups from financing a bloody inter-religious conflict.
The Just Gold project is the first to successfully trace conflict-free and legal artisanal gold from mine site to export applying regional and international standards.
Bullion climbed for a fifth day Wednesday on reports that the president asked FBI Director James Comey to drop an investigation into a former National Security Adviser.