Tesla reportedly fired Omead Afshar, its head of North American and European operations, in June following a massive drop in European EV deliveries. Afshar, who joined Tesla in 2017, was just promoted to the position in November. The Wall Street Journal described Afshar as one of Musk's closest confidants at the company.

Elon Musk said Samsung "agreed to allow Tesla to assist in maximizing manufacturing efficiency" at its chip plant. He will "walk the line personally."

Tesla (TSLA.O) has signed a $16.5 billion deal to source chips from Samsung Electronics (005930.KS), a move that could bolster the South Korean tech giant's unprofitable contract business but is unlikely to help Tesla sell more EVs or roll out robotaxis more quickly.