SHANDONG YUANLIAN CHEMICAL CO.,LTD. is mian manufacturer of Iminodisuccinic acid Salts (IDS), Polyaspartic Acid Salts(PASP), Polysuccinimide (PSI) and PASP/IDS Chelats etc. The products are all biodegradable, widely used in Agriculture and Fertilizer, Chelate Trace Elecments and Micronutrients, Water Treatment Chemical, etc. In agriculture, PASP/IDS chelated trace elements and micronutrients are used for fertilizer. Main Products: - IDS-Na (Iminodisuccinic acid / Tetrasodium Iminodisuccinate / D,L-Aspartic acid, N-(1,2-dicarboxyethyl) tetra sodium salt) -PASP-Na (Polyaspartic Acid Sodium Salt) - Polyaspartic Acid Salts: Poly Aspartic Acid Potassium Salt, Poly Aspartic Acid Ammonium Salt, Poly Aspartic Acid Calcium Salt, Poly Aspartic Acid Zinc Salt, etc. -IDS chelates for fertilizer: IDS-Fe, IDS-Mg, IDS-Ca, IDS-Zn, etc. - PSI (Polysuccinimide / Polysuccinic imide, Intermediate of Poly Aspartic Acid Salts)

All Nitrogen Fertilizer(6)  Fertilizer Additive(7)  EDTA Series(1)  Soil Conditioner(5)  Micronutrient Fertilizer(2)  Potash Fertilizer(2)  Phosphate Fertilizer(2)  Magnesium Fertilizer(1)  Calcium Fertilizer(7)  Compound Fertilizer(1)  Water Soluble Fertilizer(7)  Amino Acid fertilizer(6)