Samsung Electronics is reportedly set to exclusively supply sixth-generation high-bandwidth memory (HBM4) to OpenAI while reallocating more than half of its advanced foundry capacity to internal production, according to Hankyung and industry sources. The move underscores the South Korean chipmaker’s drive to meet surging demand for artificial intelligence (AI) components as orders from major customers — including Nvidia and Advanced Micro Devices (AMD) — continue to accelerate.