China & EU: With increasingly stringent environmental regulations, the use of STPP (Sodium Tripolyphosphate) in detergents is being restricted. Some regions in China have already promoted phosphorus-free detergents, while the EU has implemented stricter wastewater discharge standards, pushing companies to reduce STPP usage.

Alternative R&D: Several chemical companies (e.g., BASF, Solvay) are accelerating the development of eco-friendly chelating agents (such as sodium citrate and zeolites) to replace STPP in detergents.