. OCMSET / 1905/002 May 8, 2019 Subject: Clarification of the operating results for the three-month period of 2019, change of rate more than 20 percent Dear Director and Manager the Stock Exchange of

ended 31 March 2019 and 2018 are as follows; Unit: THB million Q1-2019 Q1-2018 % Change 1. Revenue from sales and contract work 3.2 1.2 169.6% 1.1 Turnkey Total Solutions 3.2 1.2 169.6% 2. Revenue from

Exchange of Thailand The Board of Directors’ Meeting of Ladprao General Hospital Public Company Limited (the “Company”), No.6/2018, held on August 10, 2018, has approved the financial statements of the

Discussion and Analysis Consolidated Financial Results for the three-month and the six-month Q2/2018 For the three-month ended 30 June 2018 Consolidated Profit & Loss of NPPG (THAILAND) PCL., Unit : Million

.   Statements of financial position As of 30 September 2018, the Company reported Total Current Assets of Baht 367.30 million, an increase from Baht 347.87 million as of 31 December 2017. The variance is mostly

Management’s Discussion and Analysis Consolidated Financial Results for the three-month and the nine-month Q3/2018 For the three-month ended 30 September 2018 Consolidated Profit & Loss of NPPG (THAILAND) PCL

to submit our management’s discussion and analysis for the second quarter in 2019, ended on June 30, 2019 as follows: (Unit : Million Baht) Jan - Jun 2019 Jan - Jun 2018 Increased/ (Decreased) % Change

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company (edit no.2 ) To: President, The Stock Exchange of Thailand T.K.S. Technologies Public

month period ended 31 March 2020 and 2019 are as follows; Unit: THB million Q1-2020 Q1-2019 % Change 1. Revenue from sales and contract work 4.7 3.2 44.2% 1.1 Turnkey Total Solutions 4.7 3.2 44.2% 2