South Korean based petrochemical manufacturer Yeochun Naphtha Cracking Centre (YNCC) will soon restart its No. 1 steam cracker after a brief maintenance turnaround. According to the sources, the unit was shut down earlier for its annual maintenance. The No. 1 steam cracker which is located at Yeosu in South Korea operates Ethylene with production capacity of 860,000 mt/year and Propylene with 4 85,000 mt/year.