42 Scientific and product research and development services in the field of microbial technology; scientific and product research and development services in the field of microbial technology for mining, chemical remediation, agriculture, oil and gas development, exploration, and extraction, and wastewater treatment; consulting services in the field of microbial technology; Scientific and product research and development services in the field of microbial technology for electronic waste treatment, PCB circuit boards manufacturing, silicon micro transmitter manufacturing, metal recycling, anaerobic bioenergy production, and microbial energy generation