purchasing raw materials and more short term loan of 77.50 Million Baht, Left in stock inventory of 143.85 Million baht, decline in trade receivable and other receivable of 86.72 Million Baht, more outstanding

1 Translation CEN 031-2018 August 14, 2018 Subject : Management Discussion and Analysis for business operation of Quarter 2-2018 To : The Manager and President The Stock Exchange of Thailand Business

’ Meeting Attn.: President of the Stock Exchange of Thailand CH. Karnchang Public Company Limited hereby notifies the Stock Exchange of Thailand that the Board of Directors’ Meeting No. 4/2017, held on August

the year 2018 Attn: Director and Manager, The Stock Exchange of Thailand With respect to the financial statements for the year 2 018 , as submitted by the Company, which has been audited by the external

Translation CEN 022-2017 August 11, 2017 Subject Management Discussion and Analysis for business operation of quarter 2/2017 To The Manager and President The Stock Exchange of Thailand For 3 months

Ref. No. 089/2020 May 15, 2020 SUBJECT : Management Discussion and Analysis ending March 31, 2020 ATTN : The President Stock Exchange of Thailand Nam Seng Insurance Plc would like to clarify the

No CS11/2017 August 9, 2017 Attention President The Stock Exchange of Thailand Subject Declaration of Operating Results for the second quarter of year 2017 For the three-month period ended June 30

1188 FAX : +66 (0) 2625 1103 www.jubileediamond.co.th CS10/2018 August 7, 2018 Attention President The Stock Exchange of Thailand Subject Declaration of Operating Results for the second quarter of year

May 15, 2019 Subject: Notification of the resolution of the Board of Directors in relation to the approval of financial statements of the 1st quarter of fiscal year 2019 To: The President The Stock

AC 52/07-003 ACC1/20-043 August 13, 2020 Subject: Management Discussion and Analysis Quarter 2 Ending June 30, 2020 To: The President The Stock Exchange of Thailand Qualitech Public Company Limited