Ta Ya Guanmiao factory has installed pollution prevention equipment at stationary sources of pollution where the pollutants are volatile organic compounds and particulate pollutants. The equipment contains catalytic converters, bag filters, and Venturi scrubbers. Reports and inspections on stationary pollution sources are done in accordance with the relevant air-pollution prevention regulations. Cuprime measures stationary source of air pollution once a year, and reports its measurements on a regular basis. It has been certified by the environmental protection authority to comply with stationary air pollution standards.