- 83 - The Company has a Tail Gas sales and purchase agreement with a related party. Selling price in the agreement is determined based on Natural Gas price for the industry. The agreement is for the period of 15 years, commencing from the date as specified in the agreement, which is subsequently extended for an additional 15 years expiring in August 2036. Utilities and Other Services Agreements The Company has 3 Power Supply agreements with 3 related parties. Selling prices in these agreements are determined based on reference price from the Provincial Electricity Authority. These agreements are for the periods of 6 years 8 months and 15 years, commencing from the date as specified in each agreement and expiring in September 2022, June 2027 and September 2028. The Company has 6 Utilities agreements covering electricity, steam and demineralised water with a related party. These agreements are for the periods from 12 years to 19 years 9 months, commencing from the date as specified in each agreement and expiring in December 2028. The Company and certain related parties have many Utilities agreements for the industries covering electricity, steam, and water for industrial use with 2 related parties. These agreements are for the periods from 4 years 5 months to 25 years, commencing from the date as specified in each agreement and expiring from June 2023 to June 2045. The Company has Tank Farm Storage and Service Agreement with a related party covering tank storage, utilities for product warehouse and transportation of Methanol. This agreement is for the period of 15 years, commencing from the effective date as specified in the agreement and expiring in March 2034, with the service charge as stipulated in the agreement. Feedstock and Fuel Gas Sales and Purchase Agreements The Company has a Natural Gas sales and purchase agreement with a parent company. The selling price is determined based on gas price as specified in the agreement. The agreement is for the period of 1 year, commencing from the date as specified in the agreement and expiring in March 2022. The Company has 2 Natural Gas sales and purchase agreements with a parent company. Selling prices are determined based on gas price as specified in each agreement and Thailand Producer Price Index as classification of products by activity (CPA). These agreements are for the periods of 10 years, commencing from the date as specified in each agreement and expiring in May 2023 and December 2029. The Company and 2 related parties have various Natural Gas sales and purchase agreements with a parent company. Selling prices in these agreements are determined based on fuel oil prices and Thailand Producer Price Index (PPI). These agreements are for the periods from 10 years to 15 years, commencing from the date as specified in each agreement and expiring from January 2022 to December 2029. The Company has an Ethane, Propane, LPG and NGL sales and purchase agreement with a parent company. Selling price in an agreement for Ethane is determined based on Polyethylene plastic pellets price. Selling price for Propane and LPG is determined based on Propane and Butane price in the world market and selling price for NGL is determined based on Naphtha price in the world market. The agreement is for the period of 11 years, commencing from the date as specified in the agreement and expiring in December 2030. The Company has an Ethane Rich Gas sales and purchase agreement with a related party. The selling price is determined based on Polyethylene plastic pellets, Olefins, and Propane price in the world market and Natural gas price in Thailand. The agreement is for the period of 9 years 7 months, commencing from the date as specified in the agreement and expiring in December 2030. Petroleum Product Offtake Agreement The Company has a Petroleum Product sales and purchase agreement with a parent company and a related party. For domestic sales, the product price reflects prices prevailing in Thailand for products of a similar quality that are sold in or imported to Thailand. For export sales, the product price reflects the prevailing international spot price for that product. This agreement is for the period of 18 years, commencing from the date as specified in the agreement and expiring in February 2024. The agreement is automatically renewed except for advance cancellation through written notice by each party. 315 BUSINESS OPERATION AND PERFORMANCE CORPORATE GOVERNANCE FINANCIAL REPORTS AND FINANCIAL STATEMENTS APPENDIX
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