Analysis by the Financial Times has established that Heller Tools, a Dinklage-based group founded in the 19th century, sold a total of $1.2mn of drills and other tools to companies linked to the so-called Serniya smuggling operation. Heller's Nürtingen-based vehicles were found on video footage of several Russian companies that also work for the Russian military, including Parsek and Kamaz. Both companies are involved in Russian military production. When asked, the Heller company replied that it complies with all sanctions regulations and could not explain how the machines were supplied to Russia last year.