Transportadora de Gas del Sur S.A. is engaged in the transportation of natural gas and production and commercialization of natural gas liquids (Liquids). The Company operates through four segments: Natural Gas Transportation Services, Liquids Production and Commercialization, Other Services and Telecommunications. The Company's pipeline system connects gas fields in southern and western Argentina with gas distributors and industries in those areas and in the greater Buenos Aires area. It also provides midstream services, which consist of gas treatment, removal of impurities from the natural gas stream, gas compression, wellhead gas gathering and pipeline construction, operation and maintenance services. The Company transports gas through approximately 5,675 miles of pipeline, of which it owns 4,745 miles. It operates the remaining 930 miles, which are owned by the Gas Trusts.