Honda’s next major North American factory is becoming a test of how deeply trade uncertainty can reach into long-term manufacturing decisions. Honda says its existing regional plants are approaching full production capacity and that another assembly facility could be needed around 2030. But Executive Vice President Noriya Kaihara has warned that the company may have to change direction if the Canada-United States-Mexico Agreement is not extended. The warning has become even more significant after reports emerged in September that Ohio is being considered for a new hybrid-vehicle plant. Honda, however, says no U.S. plant decision has been made. Meanwhile, CUSMA itself has not disappeared: the United States declined to renew the agreement in its current form on July 1, 2026, but the pact remains in force while negotiations continue.
Honda’s Warning Put Trade Policy Directly Into the Factory Decision
Honda’s position became unusually explicit in August when Kaihara told reporters in Washington that the automaker might not proceed with an eighth North American assembly plant unless the future of CUSMA becomes clearer. Honda is running close to the limits of its regional production system, he said, creating a need for additional capacity. The company expects to make a decision within roughly one or two years and would like any new facility operating around 2030. That timetable makes today’s trade negotiations relevant to investments that will shape Honda’s manufacturing network well into the next decade.
The distinction in Honda’s language matters. The company has not publicly said that a particular Canadian or Mexican site has been rejected, nor has it officially awarded the project to a U.S. location. Kaihara said Honda may need to “change our direction” without a future USMCA agreement. Reuters characterized the possibility more broadly: Honda might not build the eighth plant in North America at all. In other words, CUSMA uncertainty is affecting more than the choice between Ontario, Ohio or Mexico. It could influence the underlying economics of whether Honda adds the North American capacity in the way originally contemplated.
Ohio Has Suddenly Emerged as the Location to Watch
The factory story took another turn on September 24. Japan’s Nikkei reported that Honda was in the final stages of preparations for a new hybrid-vehicle plant in Ohio. According to the report carried by Reuters, the investment could total roughly 300 billion to 400 billion yen, equivalent at the time to about US$1.9 billion to US$2.53 billion, with production expected around 2030. The proposed timing closely matches the plant Kaihara discussed a month earlier, making the Ohio report particularly significant.
Honda immediately added an important qualification. A company spokesperson said that no decision had been made regarding a new U.S. plant. Honda also emphasized its longstanding approach of using flexible manufacturing lines and maximizing existing facilities before adding capacity. Ohio nevertheless has obvious strategic advantages. Honda already operates major assembly, engine and development facilities there and has been investing heavily in flexible production technology. That means an Ohio project would enter an established ecosystem rather than starting from scratch. Still, until Honda formally announces a site and investment, the reported Ohio plan should be described as under consideration rather than confirmed.
CUSMA Was Not Renewed — but It Has Not Expired
Part of the confusion around Honda’s warning comes from the unusual way CUSMA’s review system works. Canada, the United States and Mexico conducted the agreement’s mandatory six-year joint review on July 1, 2026. The U.S. Trade Representative announced that the United States would not agree to renew CUSMA in its current form. That prevented an automatic 16-year extension, but it did not terminate the agreement. USTR explicitly stated that CUSMA remains in force while the parties work through their disagreements.
Under Article 34.7, failure to secure unanimous support for an extension triggers annual joint reviews. The three governments can still agree to extend CUSMA later; otherwise, under the existing text, the agreement reaches its scheduled termination point 16 years after its July 2020 entry into force. That puts 2036 in the background as the eventual deadline, rather than making July 2026 an immediate expiry date. For automakers, however, legal survival and investment certainty are different things. A factory expected to open around 2030 requires years of planning, supplier commitments, construction and equipment spending. Honda therefore has to make decisions long before governments reach the ultimate legal deadline.
Auto Rules Make CUSMA Especially Important to Manufacturers
Few industries are as exposed to the details of CUSMA as automobile manufacturing. To qualify under the agreement’s automotive rules, passenger vehicles and light trucks generally must meet a 75% regional-value-content requirement. The system also includes requirements involving core components such as engines and transmissions, along with rules requiring at least 70% of a producer’s qualifying steel and aluminum purchases by value to originate within the CUSMA region. Labour-value provisions add another layer to the calculation.
Those provisions help explain why an automaker cannot evaluate a factory purely by comparing construction costs or hourly wages. A vehicle plant sits inside a much larger network of engine facilities, transmission operations, battery suppliers, stamping plants and component manufacturers. Where those inputs originate can determine whether a finished vehicle receives preferential treatment when it crosses a border. CUSMA was deliberately designed to encourage more of that content to remain in North America. If the agreement is substantially changed—or if companies cannot confidently predict future tariff treatment—the value of locating one stage of production in Canada, another in the U.S. and another in Mexico becomes harder to calculate years in advance.
Honda Is Looking for Capacity Because Its Network Is Already Busy
The proposed factory is not simply a response to trade politics. Honda says there is a genuine capacity issue behind the discussion. Kaihara described the company as close to full production capacity in North America. Honda already has a substantial assembly footprint stretching across the United States, Canada and Mexico, while its U.S. operations include major automobile plants in Marysville and East Liberty, Ohio; Greensburg, Indiana; and Lincoln, Alabama. Honda’s Canadian manufacturing base is concentrated in Alliston, Ontario.
The scale of those existing plants shows why adding capacity is a major decision. Honda’s published manufacturing information lists about 390,000 vehicles of annual capacity at its two Alliston assembly plants. Its U.S. facilities include hundreds of thousands of additional units of capacity across Ohio, Indiana and Alabama. Existing factories are also becoming more flexible. Honda has been retooling its Ohio operations so production systems can accommodate different propulsion technologies, allowing the company to respond more quickly as consumer demand moves between gasoline, hybrid and electric vehicles. A new plant would therefore complement a manufacturing network that Honda is simultaneously trying to make more adaptable and efficient.
Canada Has More at Stake Than One Possible Factory
For Canada, Honda’s warning carries extra weight because Alliston is already deeply dependent on American buyers. Honda Canada President and CEO Dave Jamieson said in June that the Ontario operation produced roughly 400,000 vehicles at full capacity in 2025 and was running at a similar pace during the first five months of 2026. He also said approximately 76% of the vehicles built there are shipped to the United States. The Alliston operation produces Civic and CR-V models, putting some of Honda’s most important North American nameplates directly inside the cross-border production system.
Statistics Canada data show that Honda’s exposure reflects a much broader industry structure. In 2024, U.S. demand accounted for 76.4% of Canadian automobile and light-duty vehicle manufacturing output and the same share of payroll jobs in that industry. Statistics Canada also reported that more than 93% of Canadian motor-vehicle exports went to the United States in 2025. That concentration means trade policy can influence Canadian investment even when a factory itself is productive and competitive. A plant may be located in Ontario, but its long-term business case can depend heavily on whether vehicles can reach American dealerships on predictable terms.
Honda’s Paused Ontario EV Project Changed the Backdrop
Canada had once appeared positioned for a major expansion of Honda’s manufacturing footprint. In April 2024, Honda announced plans for a comprehensive Ontario electric-vehicle value chain worth approximately C$15 billion, including investment by joint-venture partners. The proposal included a dedicated EV assembly plant and battery plant in Alliston, along with additional battery-material projects. Honda described Canada at the time as an attractive location for building out its future North American EV supply system.
That strategy has since changed dramatically. Honda first delayed the Canadian plan as EV demand growth slowed and then announced on May 14, 2026 that the project would be suspended indefinitely. The company has stressed that the decision does not mean Honda is abandoning automobile manufacturing in Canada, and Jamieson said existing production and employment in Alliston were unaffected by the suspension. Still, the sequence illustrates how quickly a multi-billion-dollar manufacturing plan can change when assumptions about consumer demand, technology and policy shift. It also means the conversation about Honda’s next large North American investment is unfolding after Canada already lost, at least for now, an expansion that once looked far more certain.
Hybrids Are Now Driving Honda’s Manufacturing Strategy
The next factory is also being discussed at the same time Honda is redirecting significant resources toward hybrids. In its May 2026 business briefing, Honda said it plans to begin introducing next-generation hybrid models in 2027 and launch 15 globally by the end of the fiscal year ending March 31, 2030, primarily focused on North America. Larger D-segment-and-above hybrid vehicles are planned for North America in 2029. That product schedule lines up closely with the approximate 2030 opening date Honda has discussed for another assembly plant.
Honda is not waiting for a new factory to increase hybrid flexibility. It plans to use remaining capacity at its Ohio automobile plants for gasoline and hybrid vehicles and ultimately make all of its North American automobile factories capable of producing hybrids. The company is also working with LG Energy Solution to convert part of an Ohio battery operation toward hybrid-battery production and intends to significantly increase local sourcing for motors and inverters. Honda explicitly says greater localization can reduce supply risk and mitigate tariff exposure. That makes a reported hybrid-focused Ohio plant consistent with Honda’s broader strategy, even though the company has not confirmed that Ohio has won the project.
Factory Decisions Are About Far More Than the Lowest Bid
Honda Canada has offered a revealing description of what determines where production goes. Jamieson said global headquarters evaluates factors including future costs, regulatory risk, labour stability, logistics, trade conditions and policy certainty when assigning vehicles and investment to plants. His larger point was that production allocations are continually competed for within Honda’s manufacturing system. A factory does not automatically receive the next generation of a vehicle simply because it built the previous one.
That helps explain why unresolved trade rules can carry so much weight. A large assembly plant is generally expected to operate through multiple vehicle generations, while suppliers may make their own investments based on the assembly location. Moving production later can be extraordinarily expensive. Automakers therefore seek confidence that the economics assumed when a project is approved will still make sense after construction is complete. Honda’s longstanding philosophy has been to build products close to customers, and more than 60% of Honda vehicles sold in the United States in 2025 were manufactured there. If cross-border production becomes materially less predictable, that principle could place additional value on producing vehicles directly inside their largest destination market.
The Next One or Two Years Could Decide the Manufacturing Map
Honda’s timeline gives the CUSMA negotiations practical urgency. Kaihara said the company needs to make its factory decision within one or two years if it wants the operation running around 2030. That means Honda cannot simply wait until the theoretical 2036 termination date built into CUSMA. Construction planning, supplier sourcing, incentives, engineering and production equipment all have to be settled much earlier. The company will effectively be making a long-term bet on what North American trade will look like before every political dispute is resolved.
For the moment, the picture remains deliberately unsettled. Honda says another North American factory is needed, has warned that failure to secure a stable trade framework could change its plans, and is simultaneously the subject of credible reports pointing toward Ohio. Yet its official position as of late September remains that no decision has been made on a new U.S. plant. That makes the Ohio reporting important without making it final. The larger story is that CUSMA is no longer just an abstract trade negotiation for Honda. Its future is becoming one of the variables that could help determine where billions of dollars in automotive investment—and the production attached to it—land next.
