Khatam al-Anbia Construction Headquarters is in charge for development of South Pars Gas Field Phase 13 and 14. PTEC is working with Khatam Al-Anbiya. According to PTEC official website, is working on Phase 13, 17&18 together with Iranian Offshore Engineering & Construction Co.(IOEC).
PTEC working on Phase 13
PTEC working on Phase 14
Source » PTEC