CommoditiesPhilippines, Malaysia and Vietnam hold promise for building China-free supply chainSumitomo Metal Mining seeks to tap the Philippines' rare-earth resources to step up production. (Sumitomo Metal Mining)ARATA SHIGENO and YUI SATOMay 18, 2026 00:38 JSTTOKYO -- Japanese companies are targeting Southeast Asia in their efforts to build rare-earth supply chains that do not rely on China, with Sumitomo Metal Mining tapping resources from the Philippines and trading house Sojitz developing mines in Vietnam and Malaysia.