- Hecla Mining Company mines and processes silver, gold, lead and zinc in the United States, Mexico and Venezuela. Established in 1891, our company's rich history of mining has distinguished us as a respected precious metals producer.www.hecla-mining.com
- Metalline Mining Company controls the Sierra Mojada District, Coahuila, Mexico. Metalline and Joint Venture Partner, North Ltd., are developing reserves to justify a large tonnage mine and solvent extraction electrowinning facility.www.metalin.com