Samsung is producing the current A14 chip for Tesla, while TSMC won the deal to produce the A15 chip. For the A16, Samsung will be back onboard. This new deal lasts until 2033, so it's likely designed to keep Samsung producing the A17 and beyond.

Shares in Samsung Electronics eked out small gains on Tuesday, following a sharp rally the previous day after the South Korean technology company clinched a $16.5 billion deal to supply artificial intelligence chips to Tesla .

Electric vehicle costs in the US could drop by $6,000 or more. Ford, GM, and Tesla have all invested heavily in LFP battery production in the US, partnering with LG, Samsung, and in the case of Ford, using tech from Chinese battery giant CATL. Stellantis has also partnered with CATL to build an LFP factory in Spain.