Societe Miniere Joltaia - Rieka ( Krivoi Rog ), 1899 Action de 100 Francs + Talon The Société Minière Joltaia-Rieka was one of the major mining companies in Eastern Europe, founded in 1899 in Brussels. The Krivoï-Rog area, now part of Ukraine, was rich in iron ore deposits, and the company exploited these resources for commerce and industry. This 100-franc bearer share certificate was part of an issuance to raise capital necessary for expanding mining operations. in top condition, international shipping with tracking no.