Determination of serious injury: imports require objective, quantifiable evidence and a demonstrated causal link before safeguards apply. Determination of serious injury requires the Director General to evaluate objective and quantifiable factors-including the rate and amount of import increases, market share taken by imports, and changes in sales, production, productivity, capacity utilisation, profits and losses, and employment-and to establish, on the basis of objective evidence, a causal link between increased imports and the injury; if other factors concurrently cause injury, that injury shall not be attributed to increased imports and the matter may be referred for antidumping or countervailing investigation.