% compared with the same period of the previous year To: The President The Stock Exchange of Thailand As a result of the global economic contraction and the economy of Thailand in 2018, there is a slowdown to

(Translation) UAC.CS/013/2019 August 14, 2019 Subject: Explanation of the operating results for the second quarter period ended June 30, 2019 To: President The Stock Exchange of Thailand Attachment

(Translation) UAC.CS/016/2019 November 7, 2019 Subject: Explanation of the operating results for the third quarter period ended September 30, 2019 To: President The Stock Exchange of Thailand

Discussion and Analysis for the Performance for the year ended 31 December 2019 To: President The Stock Exchange of Thailand The Board of Directors of Electronics Industry Public Company Limited (the “Company

ACC1/18-042 6 September 2018 Subject : The Information of a Disposition of Assets of the Subsidiary (Revise) To: Director and Managing Director The Stock Exchange of Thailand Qualitech Public Company

November 28, 2005 No. 7 /2018 May 10, 2018 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating result

November 28, 2005 No. 10 /2017 August 9, 2017 President The Stock Exchange of Thailand 62 Ratchadapisek Road, Klongtoey, Bangkok 10110 Subject : Clarification of the operating result. Dear sir, We

1 10 November 2017 Subject: Explanation of operating result in the financial statement ended 30 September 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

1 12 February 2018 Subject: Explanation of operating result in the financial statement ended 31 December 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

November 28, 2005 No. 2/2018 February 22, 2018 President The Stock Exchange of Thailand 62 Ratchadapisek Road, Klongtoey, Bangkok 10110 Subject : Clarification of the operating result. Dear sir, We