There’s an additional reason why international agreement and co-operation in the outer space domain is crucial: the peaceful use of outer space, as required by the Outer Space Treaty.
In October 2020, eight countries signed a NASA-led initiative called the Artemis Accords. These included the United States, Canada, Australia and Luxembourg. Notably absent were Russia and China, who have since agreed to collaborate with each other on space initiatives.
Legal issues about the ownership of space resources must urgently be addressed to avoid space wars over natural resources between superpowers like the U.S., Russia and China. This includes the legal status of the Artemis Accords. Ideally, it should be done before space mining starts.