China’s halt this month on exports of magnets containing heavy rare earth metals has affected Tesla’s plans to manufacture Optimus robots.

Tesla’s CEO Elon Musk is bullish on how he sees the competition in what is arguably the next frontier for his U.S.-headquartered company—humanoid robots. “With respect to humanoid robots, I don’t think there’s any company in any country that can match Tesla,

Hundreds of protests at Tesla showrooms have also weighed on the company. Under the banner of a “Tesla Takedown,” opponents of Musk and Trump’s government policies have targeted the company to try to gain leverage over Musk, and demonstrators have continued to swarm Tesla locations, especially on weekends.