I see what you mean by big money being invested. From the articles you provided the link to;
"In an effort to vertically integrate their own lithium supply, the most essential material in cathodes, in March 2022 POSCO committed to invest $4 billion toward their own lithium production project in Salta, Argentina. In July 2022, POSCO established a joint venture with GM called Ultium CAM to produce cathodes for hundreds of thousands of electric vehicles. In January 2023, POSCO inked a $32.5 billion agreement with Samsung SDI to supply cathode for EV batteries for 10 years."
