Making America the world’s manufacturing superpower relies on resilient supply chains. Vital to these supply chains are 42 chemicals, critical minerals, and metallic elements that are subject to excise taxes imposed through enactment of the Infrastructure Investment and Jobs Act (IIJA) of 2021. Signatories to this letter represent millions of small and large businesses throughout the economy whose competitiveness has been adversely affected. We strongly urge you to support the repeal of these harmful and misguided taxes through the budget reconciliation process.