Determination of injury requires proving dumped imports cause or threaten material injury and a causal link to domestic producers. The designated authority must find whether imports from specified countries cause or threaten material injury or materially retard industry establishment, assessing injury, threat, material retardation and the causal link by considering relevant facts such as volume of dumped imports, price effects on like domestic articles and consequent impact on domestic producers, and applying Annexure II principles; an exception permits finding injury for concentrated imports in an isolated market harming most producers therein.