If the related disclosing service provider receives a claim as prescribed in paragraph (1) or (2) of the preceding Article, the provider must hear the opinion of the sender of the violating information pertaining to the demand for disclosure on whether the sender consents to the disclosure of the sender's identification information (including grounds for the opinion if the sender is of an opinion that the demand for the disclosure should not be accommodated), except if the provider is unable to contact the sender or if there are any other special circumstances.
If the disclosure related service provider receives a sender identification information disclosure order, then without delay, the provider must so notify the sender of violating information subject to the sender identification information disclosure order, who expressed an opinion that the demand for the disclosure as prescribed in paragraph (1) or (2) of the preceding Article should not be accommodated when the opinion was sought pursuant to the preceding paragraph (but limited to that relating to the sender identification information disclosure order), except if it is difficult to notify the sender.
When the disclosure related service provider receives sender identification information under the order from any other disclosure related service provider who received an order pursuant to the provisions of Article 15, paragraph (1) (limited to the portion relating to item (ii)), the related disclosing service provider as the recipient must not use the sender identification information for any purposes other than identifying sender identification information (limited to portions relating to the violating information) possessed by the provider.
The disclosure related service provider is not liable for any damages incurred by the person who demanded the disclosure prescribed in the provisions of paragraph (1) or (2) of the preceding Article due to provider's refusal of that demand, unless the damages were due to an intentional act or gross negligence on the part of the provider; provided, however, that this does not apply if the disclosure related service provider is the sender of the violating information pertaining to the demand for disclosure.