24 July 2018 To: The President The Stock Exchange of Thailand Re: Q2-2018 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s Q2-2018 (Apr-Jun

Ref. PDI/BK-BS-056/2018 8th August 2018 Re: Management Discussion and Analysis (MD&A) For the 2Q 2018 and 1H 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod Mine’s

-Translation- 1 -Translation- Ref. NCH 042/2018 August 10, 2018 Subject : Management’s Discussion and Analysis 2Q/2018 Attention : President The Stock Exchange of Thailand N.C. Housing Plc. (“the

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Ref. PDI/BK-BS-076/2018 7th November 2018 Re: Management Discussion and Analysis (MD&A) For the three-month and nine-month periods ended September 30, 2018 To: President The Stock Exchange of

-Translation- 1 -Translation- Ref. NCH 056/2018 November 12, 2018 Subject : Management’s Discussion and Analysis 3Q/2018 Attention : President The Stock Exchange of Thailand N.C. Housing Plc. (“the

/4   Ref: J61/011 12 November 2018 Subject: Management Discussion and Analysis, 3rd Quarter Ending 30 September 2018 To: President The Stock Exchange of Thailand Regarding to JAS Asset Public Company

-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

-TRANSLATION- 14 November 2019 Subject : Management Discussion and Analysis for Q3/2019 Attention : President The Stock Exchange of Thailand An overview of the results in the passing The performance

Assets (revised) To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company”) No.8/2019 Held on November 14, 2019 at 14.00