Core Insights - POSCO Holdings Inc.'s unit, POSCO Future M, has invested in U.S.-based all-solid-state battery company Factorial, enhancing their partnership established through a Memorandum of Understanding (MOU) signed in November 2025 [1][6] - The partnership is expected to accelerate growth in the all-solid-state battery market, with Factorial securing a high-quality supply of solid-state battery materials to improve manufacturing competitiveness [1][2] Group 1 - Factorial's all-solid-state battery platform, Solstice, provides higher energy density and safety, with successful collaborations with automakers in Korea, Europe, and North America [2][6] - The partnership will leverage POSCO Future M's material design and coating technologies, expanding portfolios to include sulfide-based solid electrolytes and advanced anode materials, which will enhance energy retention [3][6] - The global demand for solid-state batteries is expected to rise, targeting emerging applications in autonomous electric vehicles, urban air mobility, and physical AI markets [2][3] Group 2 - PKX stock has increased by 39.4% over the past year, while the industry has seen a growth of 51.6% [3] - POSCO Future M's investment aligns with the growing trend towards solid-state battery technology, which is anticipated to play a significant role in future automotive and technology applications [1][2]