APA Group is engaged in the natural gas infrastructure business. The Company's principal activities include the ownership and operation of energy infrastructure assets and businesses, including energy infrastructure, primarily gas transmission businesses located across Australia; asset management and operations services for its energy investments and third parties, and energy investments in listed and unlisted entities. Its segments include Energy Infrastructure, Asset Management and Energy Investments. The Energy Infrastructure segment includes its pipelines, gas assets, the Emu Downs Wind Farm and Diamantina and Leichhardt Power Stations. The Asset Management segment provides commercial, operating services and asset maintenance services to its energy investments and Australian Gas Networks Limited. The Energy Investment segment includes its stakes in a range of investment entities that house energy infrastructure assets. Its services include gas transmission and gas distribution.