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Tesla initially said that operations would resume on May 4.
Tesla is already furloughing or cutting pay for some workers, and it is asking its landlords to slash its rent.
Tesla is set to report its first-quarter 2020 earnings on Wednesday.
Tesla did respond to FOX Business' request for comment.
Tesla CEO Elon Musk has also used his ventures to make ventilators amid the coronavirus pandemic.
The pledge came as U.S. hospitals face a ventilator shortage because of the coronavirus pandemic, which causes respiratory problems.