(MENAFN- The Rio Times) U.S. President Donald Trump warned of a“massive increase” in tariffs on Chinese imports and said there's“no reason” to meet China's Xi Jinping as planned.

The immediate backdrop: Beijing has tightened export controls on rare-earth materials-the metals that make the strongest magnets and power everything from smartphones and MRI machines to electric cars, wind turbines, and guided missiles.

The new Chinese rules don't just cover raw minerals. They extend licensing to finished goods made anywhere in the world if those goods contain Chinese-origin rare-earth inputs above a small threshold (0.1% of value).

Some parts took effect right away; fuller measures begin on December 1. In plain terms, China is making it harder to ship high-tech components without its permission.

That matters because China dominates the middle of this supply chain: roughly 70% of mining, about 90% of processing, and the vast majority of magnet manufacturing.



The U.S. does mine some rare earths in California, but much of the separation and magnet-making still happens abroad. So if Washington raises tariffs while Beijing tightens licenses, manufacturers could face a double squeeze-costlier parts and slower deliveries at the same time.
Markets Drop as U.S.–China Tensions Escalate
Markets felt that risk. In midday trading, the Dow fell about 0.44%, the S&P 500 0.64%, and the Nasdaq 0.97%. Investors were repricing the chance that supply chains get stickier and pricier into year-end.

The story behind the story is leverage. Trump is leaning on tariffs, a tool that hits China broadly but also raises costs for importers and consumers.

Beijing is leaning on choke points-rare-earth processing and magnets-where it has outsized control. Each side is signaling it's willing to accept short-term pain to protect long-term strategic ground in clean energy, consumer tech, and defense.

For readers outside the U.S. and China, including Brazil, the stakes are concrete: EV makers, electronics assemblers, and wind-power suppliers could see longer lead times, higher bills, and more complex compliance.

The next signals to watch are whether Washington formalizes new tariff schedules, how strictly Beijing enforces the December 1 rules, and whether the Trump–Xi meeting is officially scrapped. Those decisions will shape prices, production plans, and trade routes well beyond 2025.

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