How does the supply-demand balance for ethylenediamine derivatives impact the price of polymer-bound ethylenediamine resins?

How does the supply-demand balance for ethylenediamine derivatives impact the price of polymer-bound ethylenediamine resins?
China's ethylenediamine market has long faced structural imbalance: domestic producers are small-scale, high-cost, and quality-challenged, while demand from epoxy resin curing, chelating agents, and agrochemical intermediates grows steadily. This forces reliance on imports from Dow, BASF, and others, keeping upstream costs elevated. For polymer-bound ethylenediamine (CAS 177987-93-8), a specialty functional resin used in catalysis, adsorption, and separation, pricing is tightly linked to both the tightness of raw ethylenediamine supply and the higher purification and functionalization costs. Recent capacity expansion announcements in China's ethylenediamine sector, though slow to materialize due to technology gaps, could ease feedstock pressure over the medium term. Downstream demand from water treatment and resin modification remains resilient, supporting a firm pricing floor for this niche product.