42 Computer software development; Engineering services for the construction of water treatment and purification plants, solid waste treatment plants and other municipal infrastructure facilities; Engineering services, namely, engineering for the processing and treatment of waste, waste water, manure, sludge; Environmental engineering, testing and inspection services; Environmental services, namely, design for others in the field of environmental engineering; Environmental services, namely, technical consultation in the field of environmental science; Monitoring combustion systems, distillation systems, drying systems, heating systems, power generation systems, fertilizer production systems, and waste and waste water processing and treatment systems to ensure proper functioning; Platform as a service (PAAS) featuring computer software platforms for controlling, managing, testing, and monitoring combustion systems, distillation systems, drying systems, heating systems, power generation systems, fertilizer production systems, and waste and waste water processing and treatment systems; Professional consulting services and advice about agricultural chemistry; Software design and development; Software as a service (SAAS) services featuring software for controlling, managing, testing, and monitoring combustion systems, distillation systems, drying systems, heating systems, power generation systems, fertilizer production systems, and waste and waste water processing and treatment systems; Technical support services, namely, troubleshooting of computer software problems