Tesla Inc.’s (NASDAQ:TSLA) plans to ramp up production of its humanoid robot Optimus are facing significant roadblocks due to supply chain constraints and China’s new export restrictions on rare earth materials. What Happened: On Tuesday, during Tesla’s first-quarter earnings call, CEO Elon Musk said that Optimus remains in early-stage development, with mass production still months away. Musk said the company hopes to produce thousands of the robots by the end of the year, but cautioned that pro
