6.2 Throughout the anti-dumping investigation, all interested parties have the opportunity to fully defend their interests. To this end, the authorities give all interested parties, on their application, the opportunity to meet with those parties with unfavourable interests, in order to assert opposing views and to refute the arguments. The provision of such opportunities must take into account the need to maintain confidentiality and accommodation with respect to the parties. Participation in a meeting is not mandatory and non-compliance with that meeting does not interfere with that party`s case. Interested parties also have the right to provide additional information orally in support of these reasons. 3.4 The analysis of the impact of dumped imports on the industry concerned includes an assessment of all relevant economic factors and indices that affect the industry`s situation, including the actual and potential decline in sales, profits, production, market share, productivity, investment returns or capacity utilization; Factors that affect domestic prices The level of dumping margin real and potential negative effects on cash flows, inventories, employment, wages, growth, ability to raise capital or investment. This list is not exhaustive and one or more of these factors may necessarily give decisive indications. 5.9 An anti-dumping procedure does not interfere with customs clearance procedures. 3.5 It must be shown that dumped imports are prejudiced within the meaning of the agreement because of the effects of dumping in paragraphs 2 and 4. Evidence of a causal link between dumped imports and harm to domestic industry is based on a review of all relevant evidence before the authorities. The authorities also examine all known factors, with the exception of dumped imports, which simultaneously violate domestic industry, and violations caused by these other factors should not be attributed to dumped imports. Factors that may be relevant in this context include the volume and prices of imports not sold at dumping prices, a decline in demand or a change in consumption habits, restrictive practices and competition between foreign and domestic producers, technological developments, and export and productivity performance of domestic industry.