Since EUV (ie. extreme ultraviolet lithography) technology is not yet ready, 28nm is currently the most cost-effective node. This means China's SMIC now has the 28nm technology to compete in the market at the best price-point per transistor. Reference. 28nm: The Last Node of Moore's Law | EETimes "After the 28nm node, we can continue to make transistors smaller, but not cheaper." ---------- SMIC begins mass production of Qualcomm Snapdragon 425 processor in Beijing | Solid State Technology "The successful production of 28nm Snapdragon products in Beijing represents an important step for SMIC’s 28nm technology."