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.