Harmony Gold (mining) Harry Winston Diamond Corporation; Hearst, Haggin, Tevis and Co. Hillsborough Resources Limited; Hindustan Zinc; Hochschild Mining; Hollinger Mines; ... Palabora Mining Company; Pan American Silver Corporation; Peter Hambro Mining; Petra Diamonds; Phelps Dodge; Pilbara Iron; Polymetal; Polyus Gold; Potash Corporation of ...