Hydrophobically Modified Alkali Swellable Emulsions (HASE) are a class of rheology modifiers widely used in paints, coatings, adhesives, sealants, and personal care products. Production of HASE rheology modifiers is largely tied to demand from architectural coatings and waterborne formulations due to their ability to impart both thickening and flow control properties. Prices of HASE rheology modifiers are influenced by factors such as raw material costs (particularly acrylic acid derivatives), demand fluctuations in end-user industries, and regulatory shifts favoring sustainable products. In 2025, prices have remained relatively stable, with moderate increases linked to higher logistics and raw material costs.