Rio Tinto Ltd reported several updates through their 6-K filing, including a joint venture with Sumitomo Metal Mining for the Wino Project on May 1, 2025, and announced the initiation of works to boost bauxite production at the Amrun mine in Queensland on May 22, 2025. Additionally, Rio Tinto has invested in modernizing a hydroelectric plant in Quebec and partnered with Codelco for a lithium project in Chile.