South Korean steel giant POSCO has won the Gold Award in the technology category at the 26th International Stainless Steel Forum hosted by World Stainless Association. The technology that won the Gold Award this time was the high-performance ferrite stainless steel 430RE, Ridging Endurance, manufacturing technology. As the technology was selected as the best case of stainless-related technology development this year, POSCO’s technological skill was recognized worldwide.Recently, as home appliance makers make large-scale washing machines and drying machines, it has become important to improve the formability of the drum bottom and to reduce the defect of stripe pattern, ridging, on the surface. In addition, as the high-speed rotation performance of the drum is required to save water and power during spin-drying, the welding method with excellent bonding strength is preferred over the Lock Seaming method of connecting by folding and compressing the plate material when connecting the center of the drum.Accordingly, POSCO developed 430RE, a specialized steel grade that has features such as enhanced formability, anti-ridging, and corrosion resistance at welds compared to existing steel types and plans to expand its supply to overseas as well as domestic home appliance companies. Representative organization of the world’s stainless steel industry International Stainless Steel Forum, which was established in 1996, name was changed to World Stainless Association at this conference. Since 2015, the World Stainless Association has selected the best practices every year in four areas to recognize development efforts of member companies and to inspire new idea proposals.1. Market Development2. Technology3. Safety4. SustainabilityPOSCO has been proving its technology by winning awards 12 times since the first year for products such as 470FC (Gold Award in Technology) for hydrogen electric vehicle divider plate in 2018, fuel tank for PHEV (Plug-in Hybrid Electric Vehicle) in 2020 (Silver Award in Technology), and stainless steel sealed container (Gold Award in Market Development) in 2020.