China Leon Inspection Holding Limited, an investment holding company, provides services on inspection, testing, and certification businesses for the energy and commodity segments in Greater China, Singapore, and internationally. The company offers coal inspection and data, mineral inspection, petrochemical product inspection, climate change and sustainable development, power and energy, and leak detection and repair services, as well as integrated services in the field of ecological environment. It also provides standard and quality control technical services; inspection, testing, appraisal, and inspection technology development services; professional technical services; scientific research, technique, and business services; and environmental testing.