Russian petrochemicals manufacturer Nizhnekamskneftekhim (NKNH)has favoured synthetic rubber expansion plan over ethylene production, to respond to international demand. The Russian major has postponed its project to build a one million tpa ethylene production complex in favour of a synthetic rubber expansion plan, as per PRW.com. As per original plans, NKNH planned to construct the €2.1 bln complex in Russia’s Tatarstan semi autonomous republic as part of a five-year €3.2 bln investment program to 2015. As per this plan, current ethylene capacity of 600,000 tpa was planned to be doubled to 1.2 mln tpa by 2012. The complex is to have a 600,000 tpa PE capacity and one of 370,000 tpa for polypropylene.