Photo by Christian Lue

The latest Sino-American “handshake”—a 90-day pause on tariffs, semiconductor export bans, and rare-earth chokeholds agreed in Geneva and revived in London this month—was never meant as a love-in. It is a grudging ceasefire, a chance for each superpower to breathe, re-stock, and, above all, rewrite the operating manual of twenty-first-century techno-commerce. The United States plainly hopes the pause will buy time for fresh sanctions should Beijing misbehave. China, if it chooses, can reach for something more ambitious: authorship of the very rules that govern the next decade of chips, magnets, and green technology.

Beijing still supplies more than 90 percent of the world’s rare-earth magnets, the irreplaceable slivers of neodymium, dysprosium, and terbium that make electric vehicles glide and precision missiles swerve. In May, China’s overseas shipments of these magnets plunged to 1,238 tons—down 74 percent year-on-year after export licenses were tightened, reminding Detroit and Düsseldorf who really holds the screwdriver. A nation with that kind of market share does not merely play defense; it can dictate the size and color of the football.

The will to lead is already evident in fiscal muscle. The third phase of the National Integrated Circuit Industry Investment Fund—popularly known as the “Big Fund”—injected 344 billion yuan, or roughly $47.5 billion—into domestic chip-making capability. That move, in tandem with a growing roster of state-backed AI hardware ventures, is not a mere survival strategy. It is........

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