Cycle of Audit Inspection ........................................................ Significant Statistical Information .................................. 02 04 05 08 24 38 40 43 Executive summary High

mainly derived from maintenance cost of natural gas power plant which increase according to the maintenance cycle of power plant machine. Cost of sales and service increase 27.6% YoY from Baht 920.4

varying with business cycle influences persistence of earnings. Levels of earnings 12 persistence are dependent on fundamentals determined by the state of macroeconomic conditions. Despite the fact that

of how Thai taxpayers utilize tax-advantaged retirement saving vehicles Life-cycle patterns of retirement saving and implications on saving adequacy 1 Empirical evidence Two complementary perspectives

than the first half according to the seasonal demand factor. However, with the increase in natural gas price according to the cycle adjustment of price; the decline in productivity of hydro power plants

inspection cycle (2016 to 2018), audit firms in the capital market established and maintained a system of quality control as required by the Thai Standard on Quality Control (“TSQC 1”). The majority of audit

while the decrease in revenue of the combined cycle power plant is caused by temporarily shut down for major maintenance. Please be informed accordingly. Yours faithfully, (Mr.Pijayaphong Na Bangxang

from the first inspection cycle (2010-2012) to 2019, the first year of the 4th inspection cycle (2019-2021), showed promising overall improvement despite the SEC’s more intensive inspection in several

and Exchange Commission Independent Audit Inspection Activities Report Independent Audit Inspection Activities Report for the 1st Cycle 1 October 2010 - 31 December 2012 Introduction Quality Assurance

Disclosure Introduced Corporate Target Life Cycle Assessment GHG Scope 1& 2 Accounting 2017 Life Cycle Assessment (Asian sites) Third Party Performance Evaluation Sustainability Data Management GHG Scope 3