NPC's crystal melamine plant was officially opened on May 8, 2004. The inauguration ceremony was attended by first Vice President, Mohammad Reza Aref, petroleum minister, Bijan Namdar Zanganeh, deputy petroleum minister and NPC president, Mohammad Reza Nematzadeh, and a number of parliament deputies.

The sixth Iran Petrochemical Forum (IPF 2004) concluded work in Tehran. The two-day event drew 1600 participants from across the world where experts and senior executives shared their insights and views with the attendants.