At the end of May 2024, the dissolution unit of Alcoa Australia Kwinana (Kwinana) aluminum oxide plant has been completely shut down, and there are only two roasters left for the roasting of the remaining aluminum hydroxide in the process. It is expected that there will be no roasting output in early June, and all Kwinana aluminum enterprises that have operated for more than 60 years have stopped production, and the design capacity of the plant has reached about 2.3 million tons. In recent years, due to high costs and many other reasons, it has gradually reduced its production and decided to stop production. 2. On May 24, Rio Tinto Group declared force majeure on alumina shipments from two alumina plants in Australia, Yarwun and Queensland Alumina Limited, citing a shortage of natural gas stocks/supplies for energy supply. On March 5, local time, a natural gas pipeline fire broke out near Bauhinia Downs in Queensland, Australia. Local officials said the natural gas pipeline mainly supplies natural gas to Gladstone, which is mainly used for industrial purposes. It also said gas supply issues had resulted in the local Yarwun alumina plant and Queensland Alumina plant operating at lower capacity. Australia's NORTHERN STEVEDORING SERVICES (Northern Stevedoring Services) released news on March 17 that repair works have been completed on the damaged part of a leaking natural gas pipeline in Queensland state. Australia's Jemena Gas has resumed operation of the pipeline and is gradually increasing gas supplies to Rio Tinto's Yarwun and Queensland alumina plants. In early April, Rio Tinto's quarterly report showed that the local Yarwun aluminum oxide plant had a small production cut in March.