Kappes, Cassiday & Associates (KCA) specializes in the development, engineering and implementation of extractive metallurgical processes for the mining industry. Since 1972, we have been known for our expertise in gold/silver heap leaching. Our staff of over 70 people includes more than 20 process engineers and 25 laboratory personnel... Since 1972, Kappes, Cassiday & Assocaites (KCA) has provided process metallurgical services to the international mining industry. KCA specializes in all aspects of heap leach and cyanide processing, including laboratory testing, project feasibility studies, engineering design, construction, and operations management. While primarily known for its heap leach expertise, KCA's staff includes experienced professionals with design capabilities in a wide range of metallurgical processes. KCA has recently engineered a complex acid leach process for a Bolivian silver project. Since 1993, KCA has maintained an active bio-leaching program for several clients with refractory ores, including a program for a major mining company. See: http://www.kcareno.com/