Summary

Adds copper to the list of "applicable critical minerals" eligible for the advanced manufacturing production tax credit and lets certain ore-extraction costs qualify for that credit when a refiner certifies the ore was refined and sold to an unrelated buyer. Both changes apply to production, sales, and costs incurred after December 31, 2025, and Treasury must issue rules to prevent double counting of costs.

• Copper is added to the list of critical minerals eligible for the advanced manufacturing production tax credit.
• Ore-extraction costs can qualify for the production credit if a refiner certifies the ore was refined into an applicable critical mineral and sold to an unrelated buyer.
• Eligible extraction costs must be from ore extracted in the U.S., or from foreign ore only when that ore type is not commercially extracted in the U.S. and not from a designated foreign country of concern.
• The changes apply to production, sales, and costs incurred after December 31, 2025.
• The Treasury must issue regulations or guidance to prevent double counting and to define documentation and other eligibility rules.
• No new appropriations are provided; this is a tax-code eligibility change rather than direct spending.
• Refiners and extractors will face new certification and recordkeeping requirements to claim the credit.
• The amendment references an external statutory definition (foreign country of concern) which can limit eligibility for foreign-extracted ore.