-TRANSLATION- 14 November 2017 Subject : Management Discussion and Analysis for Q3/2017 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance

Translation CEN 003-2018 February 23, 2018 Subject : Management Discussion and Analysis for business operation of year 2017 To : The Manager and President The Stock Exchange of Thailand Business

-TRANSLATION- 28 February 2018 Subject : Management Discussion and Analysis for 2017 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

Microsoft Word - MDA Q1.2019 EN_Final Page 1 of 3 GEL.CS.004/2562 14 May 2019 Subject: Management Discussion and Financial Analysis for the operating results of the first quarter of 2019, ended March

-TRANSLATION- 15 May 2019 Subject : Management Discussion and Analysis for Q1/2019 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 15 May 2018 Subject : Management Discussion and Analysis for Q1/2018 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 14 August 2018 Subject : Management Discussion and Analysis for Q2/2018 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance in

-TRANSLATION- 13 November 2018 Subject : Management Discussion and Analysis for Q3/2018 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance

* After 3 Sept. 2019** No. Shareholders Shares % Shares % 1 Mrs. Charuwan Vanasin 103,779,162 12.223 88,752,662 10.452 2 WJ International Hospital Management Co.,Ltd. 60,000,000 7.067 - - 3 Mrs. Nawara

% from those of the same period last year due to Power & Systems / Fan & Thermal Management business slow down but went up 6.5% from last quarter due to the recovery of power supplies for the automotive