28.5 Mn. 2 Zen Corporation Group Public Company Limited 662 Soi Onnuch 17, Suanluang, Bangkok 10250 THAILAND. Tel: 02-0195000 Performance Statement of comprehensive income 1st Quarter 2020 2021 Change

(%) 62.6% 58.7% (3.9%) EBITDA margin (%) 26.4% 31.5% 5.1% Net profit margin (%) 5.9% 6.6% 0.7% Number of branches as at March 31 39 39 0% Change +/(-)Q1/20 Q1/21 Operating highlight in Q1/2021 Revenue

change comparing with the previous year. MTHB % MTHB % Domestic Sales 1. PVC Resins 5,375 26.9 5,418 28.1 2. Caustic Soda 3,920 19.7 4,017 20.8 3. VCM 1,492 7.5 1,667 8.6 4. ECH 905 4.5 649 3.4 5. Others

) Separate financial statements 2019 2018 % Change Sales and Service Income 2,055.48 1,892.88 8.59 Cost of Sales and Services 1,647.83 1,572.51 4.79 Selling and Administrative Expenses 176.25 171.57 2.73

May 15, 2017 Subject : Operating Result Quarter 1 Ending March 31, 2017 To : The President The Stock Exchange of Thailand WICE Logistics Public Company Limited would like to clarify the change in

year were as highlighted below ; (Unit : Million Baht) Q2/2017 Q2/2016 % Change Sales 521 501 4 Gross Profit Margin 24% 29% -5 Selling and Administrative Expenses 53 55 -4 Financial Cost 8 9 -11 Net

sales from lower EDC purchase plus greater ECH sales from the additional volume to China, Taiwan and Indian accounts. The share of domestic and export sales have no significant change comparing to the

highlighted below; (Unit : Million Baht) Separate financial statements Q1/2019 Q1/2018 % Change Sales and Service Income 485 467 4 Cost of Sales and Services 388 384 1 Selling and Administrative Expenses 44 51

below; (Unit : Million Baht) Separate financial statements Q2/2019 Q2/2018 % Change Sales and Service Income 1,001 934 7 Cost of Sales and Services 800 759 5 Selling and Administrative Expenses 87 99 (12

Power MahaNakhon Company Limited ("KPM") earlier this year, such transaction caused the change of the lessor of the MahaNakhon Cube Building from the Company’s subsidiary to KPM including change of rental