Defence Intelligence of Ukraine (DIU) has published information on 79 companies involved in the production of Russia's Su-35S multirole fighter jets.

Source: Components in Weapons section of the War&Sanctions portal

Quote: "These aircraft are primarily used by the enemy to provide cover for its Su-34 fighter-bomber strike groups, ground forces and facilities, to intercept Ukrainian UAVs and cruise missiles, and to counter the air defence systems of Ukraine's defence forces."

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Details: Along with the list of companies, DIU published an interactive 3D model of the Su-35S.