Korea Times reported that POSCO Holdings has a contract to buy 100% stake in Daejeon-based manufacturer and supplier of SiOx Tera Technos for USD 36.6 million making it the newest affiliate of POSCO. The move is aimed at fortifying POSCO's battery business, mostly through the early and full commercialization of SiOx, a newer and higher-performing material that boosts energy efficiency by about four times compared to graphite, the currently used material for lithium-ion anodes. POSCO said “POSCO Group, the only owner of a rechargeable battery material supply chain in the world, will be able to strengthen its anode material portfolio. We will be able to reduce our dependence on China for key material imports in the coming years."POSCO Holdings plans to begin facility investments before the year's end to mass produce and sell the material within the first half of 2024.Established in 2017, Tera Technos is best known for high-thermal conductivity technology boasting productivity more than three times higher than its market peers. Thermal conductivity refers to the ability of a given material to conduct or transfer heat. The startup managed to lower volume expansion risks in large part by reducing the size of silicon particles, thereby increasing silicon content in anode materials.An increasing number of local and global battery manufacturers are rushing to develop the silicon-based anode material, with the market expected to grow 39% every year by 2030. The next-generation material takes up less than 5% of a rechargeable battery's content at present, but the figure is expected to double to over 10% by 2025 and to over 25% by 2030.