Indonesia has been among the state’s top ten trading partners for several years. In 2017-18, Indonesia was Western Australia’s 8th largest merchandise exports market.

Indonesia was Western Australia’s largest export market for wheat and live beef cattle in 2016‑17. Refined petroleum oils and crude oil were the top imports from Indonesia in 2017‑18.

Western Australia was one of the first Australian states to establish its own representative office in Indonesia. Opening in 1992, Western Australia’s Trade Office has developed strong relationships with local contacts and customers. This has been crucial in assisting many Western Australian companies penetrate the Indonesian market.

In August 1990, the Western Australian Government and East Java signed a Memorandum of Understanding to formally establish a Sister State Relationship. The relationship has led to exchanges in the areas of food and agriculture, sport, education, disability services and government administration as well as parliamentary delegation visits.