Tetra Corporation is a small research and development firm located in Albuquerque, N.M., that specializes in high technology research and development. Tetra has been conducting both experimental and theoretical pulsed power and high-energy laser research since its inception in 1977. Tetra is the leading developer of electrohydraulic drilling and mining technology worldwide. A leader in the SBIR (Small Business Innovative Research) Program, Tetra is now applying key proprietary technology gained in more than 20 years of research and development in the mining and rock crushing industry. The company has developed the Focused Shock Drilling technology using pulsed electric discharges. This electrohydraulic work has extended into further research and development work on specific applications. Utilizing basic patents plus new technology developments, research has been conducted in coal and ore pulverization, mineral liberation and electrohydraulic and electrocrushing technologies, leading to the development of new and cost-effective mining and drilling technologies.