 Up to 80% of the Barkan plants’ products are exported, and increasingly subject to threats in Europe of bans on products produced by Israeli industries in the West Bank.Factory owners there say that calls to boycott some factories endanger employment for many Palestinians.According to Mohammad Chaichian, the practice of industrial zones like Barkan in the West Bank gives Palestinians, for whom work permits in Israel are restricted, no option but to accept work in what he calls "Economic prison zones".