A 100% Tariff Hits Chinese Drones; U.S. Makers Pay the Real Bill

One Signature, Two Separate Bills

A presidential proclamation signed on Thursday, August 13 imposed tariffs of up to 100% on imported unmanned aircraft systems and their parts. The next day, shares of small American drone makers jumped: Unusual Machines rose 22% to $33.24, Red Cat gained 8% to $11.02. The story the market read was a single sentence — make the Chinese product more expensive and the American one sells.

The text of the proclamation says something different. The headline 100% rate lands on a category of goods that already cannot enter the United States. Meanwhile the proclamation's second layer — the 25% levied on the components American manufacturers buy for their magnets, motors and battery cells — takes effect on February 9, 2027, and sends the bill directly to those American factories.

A tariff raises your competitor's costs. But when your supplier sits in the same country as your competitor, it raises yours too. That second sentence is what this piece is about.

The first two figures come from a political decision, the last two from a factory floor. The whole article is about the gap between those two fronts.

What the Proclamation Actually Says

The order rests on Section 232 of the Trade Expansion Act of 1962, which lets a president impose duties on imports found to threaten national security. It has already been used for steel, aluminum, automobiles and copper. The text is built around three annexes.

Annex I — 100%. All drones with a maximum takeoff weight above 25 kilograms, all drones carrying a thermal imager regardless of weight, their docking stations, and the critical components named on the list. Effective September 3, 2026 — 21 days after signing.

Annex II — 25%. Drones at or below 25 kilograms without thermal imaging. Effective the same day.

Annex III — 25%. Designated drone components. Effective February 9, 2027, 180 days after signing. Where an article falls under both Annex I and Annex III, Annex I controls.

Allied countries get caps. Goods originating in the European Union, Japan, South Korea, Switzerland, Liechtenstein and Taiwan are capped at a combined 15%, and the United Kingdom at 10% — but only with certification that substantially all critical components are sourced domestically or within those jurisdictions. The Secretary of Commerce is authorized to set up a relief program for companies building U.S. facilities, and the Department of War may carve out specified products within 20 days of signing. Products on the Blue UAS cleared lists as of September 2 receive a further 180-day grace period.

So this is not a statement of preference; it is a working instrument. The rates are set, the dates are set, the schedule is written. The question is not whether it binds. It binds. The question is whom it binds.

A Door That Already Closed in December

DJI, the world's largest drone maker, holds roughly 80% of the U.S. consumer and commercial drone market. In Federal Aviation Administration research on detected platforms, its share runs higher still.

But DJI's real problem in the United States is not a tariff. On December 23, 2025, with the security audit required by statute left uncompleted, the company was automatically added to the FCC's Covered List. Being on that list blocks new products from obtaining the radio frequency authorization required to sell in the U.S. The result: roughly 25 planned 2026 products and about $1.5 billion in associated U.S. revenue froze in place. Drones already sold remain legal to fly; new ones cannot come in.

The distinction here is critical and headlines keep collapsing it. A tariff makes entry more expensive. An equipment authorization regime makes entry impossible. The 100% rate on DJI's high-end products is a second padlock hung on a door that was already bolted. Duties are collected only on imports that actually occur; when the base is near zero, the size of the rate does not change the revenue.

Then on January 1, 2027, the two carve-outs holding commercial operators together — the Blue UAS exemption and the Buy American exception — expire. After that date not only finished foreign drones but foreign-made critical components fall back under the authorization regime. For the American manufacturer, that is the calendar that matters.

The China Inside a Drone

What a quarter-kilogram racing drone and a twenty-kilogram agricultural sprayer have in common is that both fly on brushless DC motors. Inside those motors sit neodymium-iron-boron magnets — the highest magnetic energy density of any material in commercial production. There is no substitute. A weaker magnet means a heavier motor, and a heavier motor means a shorter flight.

The last link is in America; every link before it is in China. The House Select Committee on China puts China's share of permanent magnets near 90%; Goldman Sachs, measuring the broader rare earth magnet market, goes as high as 98%. The institutions differ on the figure and agree on the direction.

And the chain does not run one way. Eight days before the proclamation, on August 5, China's Ministry of Commerce brought exports of drones and critical components to the United States under dual-use export licensing, effective immediately. The same package applied countermeasures to a group of U.S. entities — accounts of how many range from seven to ten.

The Mechanism: How Much of the Gap Closes

A tariff's job is to close a price gap. How much of the gap it closes is something you can calculate.

The numbers in that calculation are illustrative; the logic is not. When a tariff also lands on the inputs of the producer it is meant to protect, the net protection delivered falls well below the announced rate. Trade lawyers call this an inverted tariff structure: as the spread between the duty on the finished good and the duty on its inputs narrows, so does the shelter the domestic producer actually receives.

The industry association AUVSI supports the proclamation — and the emphasis of its statement lands on exactly this point. Its president, Michael Robbins, said the Commerce Department must issue "clear classification and country-of-origin certification guidance so industry can comply with confidence." Even the supportive party concedes that the live uncertainty sits in Annex III.

The Arithmetic of Capacity

Price is one thing. There also has to be product to deliver.

Unusual Machines' Orlando facility produces roughly 15,000 motors a month. That is 180,000 motors a year. For a four-motor aircraft, and setting spares aside entirely, it works out to about 45,000 drones a year.

Set that against the number on the other side: $1.5 billion of DJI revenue planned for a single year and now frozen. Even at an average selling price as high as $3,000, that is 500,000 units; priced off the company's best-selling consumer model at $760, the figure runs into the millions. America's largest known drone motor line does not cover a tenth of the hole that opened.

The other names are earlier still. USA Drone Motors is staffed by a founder, one intern and part-time contractors, with its seed round not yet closed. Westmag raised $11 million in June for motor development. On magnets, MP Materials targets 1,000 tonnes a year and Vulcan Elements — backed by a $620 million conditional Pentagon loan — targets 10,000 tonnes; together they remain small against the tens of thousands of tonnes the global drone industry consumes annually. On the defense side, the Office of Strategic Capital signed an $820 million conditional loan with Performance Drone Works for component manufacturing in Alabama — but that money is earmarked for military-class aircraft. It does not reach the farmer spraying a field or the police department buying a patrol drone.

What Friday Actually Priced

The ordering itself says something: the moves are ranked not by how much each company stands to gain from the policy, but inversely by how small it is. Unusual Machines, the biggest gainer, was already up 114% year to date before Friday. Kratos guides to $1.75–$1.81 billion of 2026 revenue and AeroVironment is the sector's most institutional name — both settled for a couple of percent. The small caps priced the news at full strength; the large ones priced it cautiously. The smaller the market capitalization, the larger the per-share effect of the same headline. That is not information; it is a leverage effect.

Red Cat's latest results complete the picture. Revenue rose 527% year over year to $20.19 million but came in below the $22.58 million consensus, with a GAAP loss of $0.26 a share. The company holds $325.55 million in cash and reaffirmed full-year guidance of $150–$180 million. In other words, the sector's second-biggest gainer is a company carrying more than twice its annual revenue in cash and still losing money. On valuation, what carries the price is not today's sales but an expectation of tomorrow's market share. The three-month path of Kratos, one of the sector's most institutional names, shows which curve Friday's jump sat on top of.

One caution while reading that chart: not all of the move belongs to a single news day. Drone shares have been trading with Pentagon budget flows and export restrictions for weeks. Friday's jump is a one-day layer on top of that curve.

Timeline

The Other Side

What Is Left

The proclamation answers three questions cleanly and leaves one open. What was said? Not a preference — a signed action. Is there a binding instrument? There is: rates, annexes and effective dates. Does the instrument's scope actually cover the event? Here it splits. The instrument taxes imports, but the obstacle in front of DJI is not import cost — it is equipment authorization. The same instrument, however, also taxes the parts the American manufacturer imports, and there it operates at full strength.

Which is why February 9 matters more than September 3. The first date changes a competitor's price; the second changes your own cost. And in between, on January 1, the commercial operators' foreign-component exception runs out.

This article draws on the White House's published text and fact sheet for the August 13, 2026 proclamation, legal analyses of the order from KPMG and Baker Botts, AUVSI's official statement, public accounts of China's Ministry of Commerce announcement of August 5, and the companies' own earnings releases. Market share and supply chain percentages are calculated differently by different institutions; where sources diverge, the range has been preserved in the text. The worked example is a representative calculation built to show the mechanism, not the actual cost structure of any specific product. Not investment advice.