CLARIFICATION NOTE: Styrene Monomer FOB Korea, CFR China marker assessments

Daily FOB Korea markers for styrene monomer as published on PCA 215 average the mean of the third and fourth half-month forward assessment ranges (second and third half-month forward published assessment cycle.) Daily CFR China markers average the mean of the second and third half-month forward assessment ranges (first and second half-month forward published assessment cycle.)

Daily assessments FOB Korea evaluate cargoes for delivery in second, third, fourth and fifth half-month forward cycles. Daily CFR China assessments evaluate cargoes for delivery in second, third and fourth half-month forward cycles. Each half-month assessment cycle covers 15 or 16 days. All half- month cycles are rolled forward on the 1st and 16th day of each calendar month. For example, on March 1, 2012, the half-month cycle assessed would be H2 March, H1 April, H2 April and H1 May.

Please send any queries or comments to Gustav Holmvik, gustav_holmvik@platts.com or Ihsan Rahim at ihsan_rahim@platts.com with a copy to petchems@platts.com and pricegroup@platts.com.