The clean-energy sector is witnessing a significant shift towards green hydrogen production, with electrolysis gaining prominence as a method to achieve this goal. Proton-exchange membrane (PEM) electrolysers, particularly those incorporating innovative materials like Toho Titanium's WEBTi, are at the forefront of this transformation. The growing global electrolysis capacity and substantial investments signal a strong commitment to decarbonizing key industries such as steelmaking and oil refining. WEBTi, with its slim profile and unique microstructure, addresses the challenges of material degradation and high costs associated with PEM electrolysers, offering a more efficient and sustainable solution. WEBTi's development marks a significant advancement in green-energy technology, as it enables the production of high-purity hydrogen using renewable energy sources like solar and wind power. The material's enhanced durability and reduced reliance on precious metals like platinum make it a promising candidate for large-scale hydrogen production. The meticulous engineering behind WEBTi's microstructure and surface smoothness showcases the innovative approach taken by Toho Titanium in revolutionizing PEM electrolysers. By introducing different variants of WEBTi tailored to specific needs, Toho Titanium is paving the way for a more versatile and cost-effective solution in the green hydrogen sector. The material's ability to withstand extreme conditions and optimize gas and liquid transport in PEM electrolysers highlights its potential to drive efficiency and sustainability in hydrogen generation. With the global focus on climate commitments and renewable energy, innovations like WEBTi play a crucial role in accelerating the transition towards a greener future.