Anton Oilfield Services Group, an investment holding company, provides oilfield engineering and technical services for oil companies in the People's Republic of China and internationally. It operates through four segments: Inspection Services, Oilfield Management Services, Oilfield Technical Services, and Drilling Rig Services. The company offers inspection and repair, intelligent monitoring, and digital and intelligent management services of various equipment and facilities for the operation of customers' oil and gas field equipment, facilities, and assets; management general contracting, including reservoir support, operation management, production operation, logistics, and third-party service provider management, as well as health, safety, and environment services; capacity construction; oilfield development management; and oilfield operation and maintenance services, such as engineering contracting, commissioning, and operation and maintenance management services for oilfield assets of oil companies. It also provides geological, drilling, well completion, and stimulation technology services, as well as asset leasing services; and drilling and well workover services that require drilling rigs. In addition, the company manufactures rod casings; and provides construction services. Anton Oilfield Services Group was founded in 1999 and is based in Beijing, China. Anton Oilfield Services Group is a subsidiary of Pro Development Holdings Corp.