POSCO Holdings announced its involvement in supplying hydrogen-induced cracking (HIC) resistant steel for the expansion of Saudi Aramco's Fadhili gas plant, marking a significant debut for the company in this specialized material segment. HIC-resistant steel is vital for withstanding internal damage caused by hydrogen atoms in energy infrastructure like pipelines and pressure vessels. Previously reliant on European suppliers for HIC-certified steel, Aramco's partnership with POSCO signifies a shift in the industry landscape. POSCO's successful certification not only breaks into an exclusive supplier group but also enhances its position in supplying premium-grade steel for essential infrastructure. This development has led to South Korean firms playing key roles in the Fadhili project, manufacturing piping systems, pressure vessel components, and fittings. The collaboration showcases South Korea's technological capability and competitiveness in the global steel and fabrication industries, cementing its role as a reliable partner in significant international energy projects.