Share of 25 Piastres to bearer issued in Hanoi in 1926.

Company founded under the aegis of the Société des Etains et Wolfram du Tonkin, with the assistance of several first-rate firms: Société Financière Francaise et Coloniale, Banque de l'Indochine, Union Parisienne, Banque Mirabaud, etc.

The deposit of the Bao-Lac gold mines is made up of auriferous alluvium from the Upper Sông-Nang.