SHANGHAI—Shanghai environmental-protection authorities said a battery factory operated by U.S.-based Johnson Controls Inc. that they ordered to suspend operations last month will remain closed through the end of the year, along with 14 more plants that also use lead.
The moves suggest the city is rethinking the balance between economic growth and safety after a series of lead-poisoning scandals around the country.
The Shanghai Environmental Protection Bureau began ordering temporary plant closures last month after routine back-to-school medical tests determined unhealthy levels of lead in the bloodstream of a small number of youngsters—and sparked a local outcry.
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