Tariffs, Supply Chains, and the High-Stakes Math Behind America's Industrial Revival

Highlights

• Blanket tariffs on primary inputs like minerals, metals, and energy threaten America's industrial revival by inflating costs for EV motors, transformers, and battery production.
• China's dominance varies by supply chain stage:
  • Mining is diversifying globally.
  • Refining (85-90%) and magnet production (92-95%) remain concentrated chokepoints.
• Strategic tariff exemptions for raw materials are critical—feedstock availability, not ideology, will determine whether U.S. manufacturing can compete with China's subsidized scale.

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A recent essay argues that Executive Order 14257 was a necessary response to decades of non-reciprocal trade practices—and that sweeping tariffs on primary inputs like minerals, metals, energy, and semi-finished goods risk sabotaging America’s industrial revival.

On the essentials, the analysis holds up. Blanket tariffs do inflate input costs, and the U.S. does depend heavily on imported upstream materials for everything from EV motors to transformers to the rare earth magnet chain.

Rare Earth Exchanges™ (REEx) reviewed the piece—“Where Blanket Tariffs Fall Short: Strategic Exemptions for Metals and Minerals Are Key to America’s Industrial Revival”—and confirms that several points align with reality:

• China produces ~60–65% of rare earth ore, 85–90% of refined oxides, and 92–95% of NdFeB magnets.
• China supplies >90% of spherical graphite, 70%+ of cobalt refining, and >60% of lithium chemicals.
• Section 232 steel and aluminum tariffs raised U.S. domestic prices 20–30%, squeezing automotive and construction buyers.
• Allies such as Europe and Canada use non-tariff barriers, but they do not run state-subsidized, cost-dumping industrial systems comparable to China’s.

These claims are well-supported by global metals data. But the original argument also glosses over important distinctions investors must understand.

Dominance vs. Monopoly: The Market Is More Nuanced Than It Appears

China’s position is overwhelming—but not uniform across the chain:

• Mining: increasingly diversified—Australia, the U.S., Myanmar (albeit deeply China-influenced), Vietnam, Brazil, and parts of Africa are rising.
• Refining: the true choke point—85–90% is inside China.
• Magnets: the most concentrated segment—near-monopoly conditions, though Japan, the EU, Vietnam, and the U.S. are scaling capacity.

Investor shorthand:

• Mining = competitive
• Refining = concentrated
• Magnets = near-monopoly

This is where pricing power—and geopolitical leverage—truly sits.

Tariffs Don’t Hit Every Metal the Same Way

The essay authored by Amanda Van Dyke is correct that aluminum and steel tariffs spiked domestic prices. But copper is globally arbitraged, meaning tariffs often reroute flows rather than inflate them. Rare earths barely respond to tariffs at all unless Western separation capacity exists, which remains thin. Thus, tariffs can hurt downstream manufacturers more than upstream miners, but the effect is uneven across commodity classes.

The Strategic Bottom Line for Investors

Where the essay is strongest is also where the stakes are highest: tariffs on primary inputs risk choking the very mine-to-magnet supply chain America is trying to build. Competing with China’s scale and subsidies requires keeping raw materials flowing freely while targeting finished goods more precisely. The tariff battlefield is shifting from ideology to arithmetic—and feedstock availability, not slogans, will determine whether U.S. magnet and battery factories survive.

Citation: Amanda’ Substack (opens in a new tab), Nov. 18, 2025

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