Tesla TSLA investors are having a busy week, -0.92%, and it’s only Tuesday. Ahead of the week’s main event, analyst day on Wednesday, investors need to digest news about batteries, as well as demand for electric cars in China and new production capacity in Mexico.

For starters, Tesla (ticker: TSLA) signed a $2.9 billion deal for battery materials with L&F (066970. Korea), a Korean manufacturer of battery cathode materials, according to a Google translation of L&F’s Korean post. L&F shares soared nearly 9 percent on the news, and the company’s market value rose by about $500 million to nearly $6 billion.