SK Group Chairman Chey Tae-won met with OpenAI CEO Sam Altman for lunch on October 31, where the two sides discussed cooperation on artificial intelligence business. Industry insiders speculate the talks centered on high-bandwidth memory (HBM) supply and next-generation AI infrastructure development, though specific details were not disclosed. SK Group remains a key partner in OpenAI's large-scale "Stargate" AI infrastructure project, underscoring the deepening collaboration between the Korean conglomerate and the leading AI developer.