1. Analyst Conference Analyst Conference Q1/2012 April 24, 2012 1

2. 2 Agenda  Q1/2012 Situation  Consolidated Financial Results  PVC Outlook Q2/2012

3. 3 I. Q1/2012 Situation

4. 4 Q1/2012 Market Highlights  PVC demand in Thailand improved due to seasonal demand and recovery from severe floods.  PVC supply remains limited from weak domestic demand in China, shortage of VCM supply in S.E. Asia and Japan, very low level of A-PVC operating rate. However, A-PVC have start to emerge in the market in late quarter due to attractive of higher PVC price.  PVC price improved due to cost-push resulting from rising energy, Ethylene and VCM.

5. 5 Vinyls Market and Price Movement - 5 - PVC-EDC 407 423 483 481 466 437 467 516 637 626 591 658 Gap (US$/MT) PVC-EL (23) (147) (203) (300) (95) (10) (65) (213) (115) (62) (140) (297) Gap (US$/MT) PVC Price 719 883 853 966 993 893 983 1,025 1,176 1,098 920 954 US$/MT PVC EDC Ethylene Q2 ’09 Q3 Q4 Q1’10 Q2 Q3 Q4 Q1’11 Q2 Q3 Q4 Q1’12 VCM

6. 6 PVC Resin Sales Volume Regional Sales = Vietnam & Indonesia MT 1% Q-o-Q 6% Y-o-Y KMT YTD 185 6 % Y-o-Y 43% 30 % 27% 30% 43% 185 28% 31% 41% 156 26% 36% 38% 174 27% 36% 37% 171 ….. increased 1% Q-o-Q while decreased 6% Y-o-Y mainly from the recession of global economic………… 173 45% 28 % 27% 173 45% 28 % 27%

7. 7 745 697 36% 38% 26% 35% 37% 28% MT 713 PVC Resin Sales Volume 29% 34% 37% 685 40% 33% 27% (3 Months) 173

8. 8 II. Consolidated Financial Results (Preliminary & Unaudited)

9. 9 Consolidated Revenue from Sales Million Baht 5 % Y-o-Y YTD 5 % Y-o-Y.. 11 % Q-o-Q …….Up 11% Q-o-Q from higher selling price while down 5% Y-o-Y mainly from the economic slowdown………….

10. 10 Consolidated Revenue from Sales Million Baht (3 Months)

11. 11 Million Baht YTD Million Baht 191% Q-o-Q 14% Y-o-Y Consolidated EBITDA …. increased 191% Q-o-Q and 14% Y-o-Y mainly from the better performance……

12. 12 Million Baht Consolidated EBITDA (3 Months)

13. 13 Million Baht 1,118 % Q-o-Q 47 % Y-o-Y YTD Consolidated Net Profit …… increased 1,118% Q-o-Q and 47% Y-o-Y due to the higher gap between selling price and main raw material price………… 513 766 54% 38% 513 38% 54% 755 62% 36% 47 % Y-o-Y 37% 60% 539 35% 60% 148% 62 755 36% 62%

14. 14 Million Baht Consolidated Net Profit 755 2,210 1,866 83% 92% 55% 72% 40% 8% 36% 35% 59% 1,880 55% 40% 62% (3 Months)

15. 15 III. Outlook Q2/2012

16. 16 Q2/2012 Outlook  Thailand’s demand may be slow because of rainy season and Songkran holidays.  PVC supply is still limited from continued shortage of VCM supply and weak domestic demand in China.  PVC price is expected to improve due to cost-push due to continued rising in energy, Ethylene and VCM price.

17. 17 Thank you