During the past year, the Sustainable Funds Group at Stewart Investors launched another collaborative engagement effort, supported by 160 investors with collective assets under management of US$6.59 trillion, focused on conflict minerals within the semiconductor supply chain. Tantalum, tin, tungsten, gold and cobalt (referred to collectively as conflict minerals) are vital materials and building blocks of the semiconductor industry. The poor traceability of these minerals alongside complex supply chains, including smelting and refining, can obscure their provenance and lead to the inadvertent financing of armed conflict and human rights abuses.