Ethyl Hydrogen Maleate is widely used in the production of polymers and resins, where it acts as a key intermediate. It is particularly valuable in the synthesis of copolymers, which are utilized in coatings, adhesives, and plastics due to their enhanced durability and flexibility. In the pharmaceutical industry, it serves as a building block for the development of certain drugs, contributing to the formation of active pharmaceutical ingredients. Additionally, it is employed in the manufacture of surfactants and emulsifiers, which are essential in personal care products and industrial cleaning agents. Its role in organic synthesis also extends to the creation of specialty chemicals used in various industrial applications.