จดหมายชี้แจงQ160e May 15, 2017 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 31 March 2017 Summary of the 1 st Quarter

Translation August 9, 2017 Subject: Management explanation and analysis for Quarter ended 30 June 2017 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe Public Company Limited

gross premium written. Kindly be informed accordingly. Yours sincerely Wichai Intaranukulkij Managing Director

Intaranukulkij Managing Director

sincerely Wichai Intaranukulkij Managing Director

and services revenue but sales and administrative expenses was fix. Please be informed accordingly Yours sincerely, K.C. Metalsheet Public Company Limited (Mr.Niphon Charoenkit) Managing Director

Letter_StockExchange_Nov14 November 14, 2019 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis for three month Ending 30 September 2019 Summary on

จดหมายชี้แจงปี61e February 27, 2019 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis Ending 31 December 2018 Summary of operating result between 2018

. Somboon Fusriboon) Managing Director /home/nsi/Documents/MD&A/MD&A_Q1_62SET.odt

Company recorded the Baht 1.42 million for temporary factory shut down expenses in a part of Administrative expenses Please be advised accordingly. Yours Faithfully, Prasertsak Suwanpotipra Managing