The prohibition set out in Article 4(1) shall be without prejudice to the execution, until 15 April 2013 , of any obligation relating to the delivery of goods provided for in contracts concluded before 26 July 2010 or 16 October 2012 .

The prohibitions set out in Article 4 shall be without prejudice to the execution, until 15 April 2013 , of any obligation arising from contracts concluded before 26 July 2010 or 16 October 2012 and relating to investments made in Iran before those dates by enterprises established in Member States.

The prohibition in Article 4a(1) shall be without prejudice to the execution, until 15 April 2013 , of an obligation relating to the delivery of goods provided for in contracts concluded before 23 January 2012 or 16 October 2012 .

The prohibitions in Article 4a shall be without prejudice to the execution, until 15 April 2013 , of an obligation arising from contracts concluded before 23 January 2012 or 16 October 2012 and relating to investments made in Iran before those dates by enterprises established in Member States.

Paragraphs 1 and 2 are without prejudice to the execution of obligations referred to in Article 3c(2) provided that those obligations arise from service contracts or ancillary contracts necessary for their execution and provided that the execution of those obligations has been authorised in advance by the relevant Member State. The relevant Member State shall inform the other Member States and the Commission of its intention to grant an authorisation.

Paragraphs 3 and 4 are without prejudice to the execution of obligations referred to in Article 3d(2) provided that those obligations arise from service contracts or ancillary contracts necessary for their execution and provided that the execution of those obligations has been authorised in advance by the relevant Member State. The relevant Member State shall inform the other Member States and the Commission of its intention to grant an authorisation.