) Exhibit 4: Products and Feedstock’s prices Average Price 2Q2020 2Q2019 % YoY 1Q2020 % QoQ 1H2020 1H2019 % YoY (USD per ton) Fatty Alcohols (1) - Short Chain 1,846 3,030 -39% 2,186 -16% 2,016 3,140 -36

for margins and volumes in 2019 due to its enhanced portfolio of assets across the polyester value chain and the addition of new HVA businesses. IVL core ROCE for LTM 3Q18 at 14% is negatively impacted

Manufacturing Co., Ltd. ("ACM"), the aluminum can production facilities as a part of supply chain management plan, which had reached 100% utilization rate since 4Q/2019 after its first commercial run in November

expected to severely contract during the outbreak. The export sector has been impacted by declining demand from trading partners and supply chain disruption, while the tourism sector has been impaired by

and canning plants which enabled the economies of scales. In additions, Asia Can Manufacturing Co., Ltd. ("ACM"), the aluminum can production facilities as a part of supply chain management plan, which

ตอ่ตนั) ไตรมำส 1/2561 ไตรมำส 1/2560 % yoy ไตรมำส 4/2560 % qoq ผลติภณัฑ์แฟตตีแ้อลกอฮอลส์ (1) - Short Chain 3,618 3,211 13% 3,500 3% - Mid Cut 1,796 2,507 -28% 2,177 -18% - Long Chain 1,271 1,441 -12

(USD per ton) Fatty Alcohols (1) - Short Chain 3,538 3,500 1% 3,822 -7% 3,705 3,363 10% - Mid Cut 1,231 2,177 -43% 1,351 -9% 1,445 2,074 -30% - Long Chain 1,164 1,414 -18% 1,259 -8% 1,251 1,401 -11

enhance operational efficiency in supply chain, operational cost management, product selection and quality control. During 2019, HomePro opened 2 new HomePro stores at Charansanitwong and Mukdahan, 1

(1) - Short Chain 3,249 3,618 -10% 3,538 -8% - Mid Cut 1,241 1,796 -31% 1,231 1% - Long Chain 1,183 1,271 -7% 1,164 2% ผลิตภณัฑ์แฟตตี้แอลกอฮอล์เฉลีย่ (2) 1,365 1,784 -23% 1,395 -2% น้้ามันเมล็ดในปาล์ม

. Fatty Alcohols Exhibit 4 : Products and Feedstocks’ prices Average Price 2Q/2019 2Q/2018 % YoY 1Q/2019 % QoQ 1H/2019 1H/2018 % YoY (USD per ton) Fatty Alcohols (1) - Short Chain 3,030 3,845 -21% 3,249 -7