Peñoles was founded in 1887, is a mining group with integrated operations for the smelting and refining of non-ferrous metals and the processing of chemical products. Peñoles today maintains a leading position in the industries it serves:
- As the world’s largest producer of fine-tuned silver and the most important of metallic bismuth in America.
- It is a Latin American leader in the production of fine-tuned gold and lead.
- It is among the world’s leading producers of fine-tuned zinc and sodium sulfate.
- It is one of the most important exporting companies in Mexico, with more than 80% of its sales abroad.