Trump’s Tariffs and AI Demand Forge U.S. Steel Dominance as Global Markets Split

President Donald Trump hailed the United States surpassing Japan in steel output in 2025, the first year of his second term.

“Just think? It has just been announced that the United States of America made more Steel last year, 2025, than the Great Country of Japan, a major Steelmaker,” Trump wrote Sunday on Truth Social while attending Dan Scavino and Erin Elmore’s wedding at Mar-a-Lago in Palm Beach, Florida.

For the first time in over two decades, U.S. steel production outpaced Japan — a milestone fueled by Trump’s tariffs and surging demand from America’s artificial intelligence infrastructure buildout, according to Nikkei Asia.

U.S. crude steel output rose 3.1% in 2025 to 82 million tons, per the World Steel Association, placing the nation third globally behind China and India. This marked the first time since 1999 that American mills outproduced Japan, ending decades of relative decline and signaling a shift in the global steel landscape.

The revival has Trump’s fingerprints all over it. In March, his administration imposed an additional 25% tariff on imported steel and aluminum, then doubled down in June by raising the levy to 50%. With foreign steel suddenly far more expensive — and availability less certain — U.S. manufacturers ramped up output to meet rising domestic demand.

Steel prices have surged as a result. Hot-rolled steel coils, a key input for manufacturing and construction, hit $983 per ton as of January 12, the highest level since last May and nearly double the global export price, according to SteelBenchmarker. Prices are up roughly 30% from January 2025, when Trump began his second term.

Yet higher prices have not scared buyers away — including foreign ones. Instead, tariffs have created a protected, high-margin market in which steelmakers can invest with confidence. U.S. domestic steel shipments rose 5% year over year in November, data from the American Iron and Steel Institute show, underscoring the strength of underlying demand.

A major driver is the AI boom. Steel demand for data centers and power generation facilities has surged as tech companies race to build the infrastructure needed to support artificial intelligence. Private-sector spending on data center construction more than doubled in the two years through January 2025, according to the U.S. Department of Commerce, turning the sector into a critical pillar of steel consumption.

Foreign investors are also taking notice. Japan’s Nippon Steel completed its $14.1 billion acquisition of U.S. Steel last June and plans additional investments to produce high-grade steel for data centers and advanced applications.

With tariffs shielding the market and demand accelerating, the United States has become a top destination for global steel investment.

Meanwhile, conditions elsewhere are deteriorating. China, which accounts for roughly one-third of global steel consumption, is experiencing a slowdown in demand due to prolonged construction declines. Excess Chinese steel — often sold at deep discounts — is flooding export markets, distorting prices and pressuring producers in countries dependent on exports.

“The direction of steel market conditions is diverging sharply,” said Atsushi Yamaguchi, a senior analyst at SMBC Nikko Securities. “Regions that restrict imports through protectionism are seeing improved investment and profitability, while other regions face intensifying pressure.”

Yamaguchi warned that steelmakers in Japan, South Korea, Taiwan, and China — all heavily reliant on exports — will see worsening profit conditions after 2026 as market polarization deepens.

In contrast, the U.S. steel industry is experiencing a resurgence, protected by tariffs, driven by AI demand, and bolstered by domestic and foreign investment that has reshaped the global steel landscape.