Itronics Inc.. The Group's principal activities are to provide mining technical services, developing and implementing photobyproduct recycling, fertilizer manufacturing, precious metals recovery and refining. The Group's activities are classified into two segments: photobyproduct fertilizer and mining technical services. Photobyproduct fertilizer segment operates a photobyproduct recycling plant and is developing new silver-gold refining technology. Mining technical services segment provides mining and materials management, geology, engineering and economics consulting. The Group also publishes specialized mineral economics and materials financial reports. Photobyproduct fertilizer accounted for 73% of 2002 revenues and Mining technical services, 27%.