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The military contractor responsible for a Southern California chemical leak that forced as many as 50,000 people to evacuate their homes over the weekend manufactures parts of F-35 fighter jets likely bound for Israel, The Intercept has learned.
The Garden Grove, Calif., GKN Aerospace plant, whose 7,000-gallon chemical tank ruptured last week and threatened to explode, has brought in more than $13 million since 2017 in subcontracts with military manufacturing giant Lockheed Martin, according to an analysis of federal contract data conducted by the Palestinian Youth Movement and independently verified by The Intercept. Further analysis of F-35 production for Israel conducted in 2025 by Ploughshares, a Canadian independent research institute, found that Lockheed doles out subcontracts to hundreds of companies across more than a dozen countries to help build the jets. Among them is GKN Aerospace Transparency Inc., the GKN subsidiary based in Garden Grove, which raked in more than $255 million from subcontracts with Lockheed Martin.
“While GKN chases contracts and profits, our community pays the price with school closures and disrupted livelihoods,” Sarah Awaida, an organizer with the Palestinian Youth Movement and Garden Grove resident who was evacuated due to the leak, said at a press conference in the city on Tuesday. “And our people abroad pay the price when the same weapon systems produced here are used to massacre people in Gaza, in Lebanon, in Iran and all across the region.”
Garden Grove is a predominantly working-class and immigrant city in Orange County, just outside of Los Angeles. The evacuation order, which has since been lifted, disproportionately affected residents who are lower income.
“While GKN chases contracts and profits, our community pays the price with school closures and disrupted livelihoods.”
GKN Aerospace describes its Garden Grove plant as “the leading provider” of the acrylic bubble that encases the F-35 fighter jet cockpit, known as a transparency canopy. Methyl methacrylate, the highly flammable chemical that began to leak from the facility last week, is a key ingredient in the protective bubbles.
“Due to the nature of the F-35’s global supply chain, it is likely that the F-35 components produced at the Garden Grove facility are incorporated into aircraft exported to Israel,” said John Ramming Chappell, advocacy and legal advisor at Center for Civilians in Conflict. “This is the same type of aircraft that the Israeli military has used to kill civilians and violate international humanitarian law.”
Since American military pilots landed Israel’s first two F-35 stealth fighter jets at the Nevatim airbase in 2016 — an occasion celebrated with a ceremony attended by Prime Minister Benjamin Netanayahu, Obama administration officials, and Lockheed Martin executives — the Israeli military has amassed a fleet of 48 F-35 jets, most of them paid for with funding from the U.S. State Department. Earlier this year, amid its genocide in Gaza and ongoing wars in Iran and Lebanon, the Israeli government announced its plans to double its F-35 fleet to 100. The Israeli military’s use of the jets has been tied to repeated allegations of war crimes, including the targeting of civilians in Gaza. Hundreds of human rights and civil society organizations have called on governments to halt their roles in F-35 production for Israel.
“This is the same type of aircraft that the Israeli military has used to kill civilians and violate international humanitarian law.”
On May 19, several days before the leak began, Garden Grove city officials issued a permit for a 34,000-square-foot expansion of GKN Aerospace’s facility. On its website, the company cited increasing demand for F-35 jets as the reason for the expansion, which would enable the company to double its production of aircraft canopies.
On Tuesday, the Palestinian Youth Movement led a coalition of groups in launching a campaign seeking the closure of GKN Aerospace’s Garden Grove facility. Alongside VietRise, the Harbor Institute for Immigrant and Economic Justice, OC Justice for Palestine, and Donald Torres, a city council member from neighboring Stanton, Calif., who was also displaced by the chemical leak, they’re also pushing for a citywide moratorium on military manufacturing contracts and expansion permits and the creation of a half-mile buffer zone between military manufacturers and residential areas in the city.
The coalition presented its demands on Tuesday evening during a packed Garden Grove City Council meeting. Speakers criticized the city for turning a blind eye to GKN’s string of concerning incidents. In recent years, the company agreed to pay nearly $1 million to settle charges of environmental violations such as a failure to maintain records of emissions and operating equipment without a permit. Earlier, the company had been penalized for not properly inspecting its machinery and was fined for labor safety violations.
“This crisis was not unpredictable,” said Layal Bata, an organizer with the Palestinian Youth Movement. “It is the result of a company and an industry that prioritizes war profiteering over people.”
Garden Grove and GKN Aerospace did not respond to The Intercept’s requests for comment.
The Palestinian Youth Movement has campaigns across the U.S. and in Europe to halt the use of civilian and private infrastructure for the weapons supply chain that fuels Israel’s military as it commits genocide of Palestinians in Gaza and upholds its apartheid rule in the West Bank. Another campaign in California calls for an end to military cargo shipments — also F-35 fighter jet components — from the Port of Oakland to Israel. Arms embargo organizers had already been tracking GKN’s Garden Grove facility before the chemical leak due to its role in F-35 production.
GKN Garden Grove has also reaped more than $4.5 million in additional subcontracts, signed in early 2023, with Sikorsky Aircraft Corporation for production of CH-53k military helicopters, according to federal contracts cited in the Palestinian Youth Movement report. Israel has ordered a dozen of the new Sikorsky military helicopters.
Last summer, anti-genocide organizers in the Netherlands marched to a GKN Aerospace office where protesters accused the company of violating a 2023 court order that had banned the export of F-35 parts from the country to Israel. Other nations with campaigns to halt their roles in producing F-35 components include the United Kingdom and Australia.
At the council meeting Tuesday evening, Dwight Hua, an organizer with VietRise who lives less than a mile from GKN Garden Grove and was also displaced by the leak, joined calls to close the facility. He, like many other residents, had no idea of the plant’s existence before the leak.
“Why has a company like GKN been quietly existing in our neighborhoods?” he said. “Now the mask is off … this is not a mistake, this is a deliberate result of an industry and company that treats our communities as disposable.”
