-1- AIT (VP-SEC) 035E/2023 November 7, 2023 Subject: Management's Discussion and Analysis of Operating Results for Q3-2023 To: The President of the Stock Exchange of Thailand Summary of Operations Q3

แบบแสดงรายการขอมูลการเสนอขายตราสารหน้ี (รายครั้ง) (แบบ 69-DEBT-PO-GOV.AGENCY) บริษัท........... (ช่ือไทย/อังกฤษของผูเสนอขายตราสารหน้ี) ............. เสนอขาย ......................................................................................................................... ......................................................................................................................... ....................................................................................................

-2841-5925 Website: www.kiatnakin.co.th http://www.kiatnakin.co.th/ 2 Management Discussion and Analysis (MD&A) For the first quarter ended March 31, 2018 comparing operating performance and financial

Website: www.kiatnakin.co.th http://www.kiatnakin.co.th/ 2 Management Discussion and Analysis (MD&A) For the first quarter ended March 31, 2018 comparing operating performance and financial position for the

to 1) consolidated operating loss of Baht 273 million during the year; 2) the recorded transaction of treasury shares from shareholders’ equity for financial management of 4 million shares during Q1

operating results for the 3-month period and 6-month period ending June 30, 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its Subsidiary (together

Ref. DBP. 141 / 2017 November 13, 2017 Subject : Clarification on Operating Results for the 3-Month Period and 9-Month Period ending September 30, 2017 To : President The Stock Exchange of Thailand

) Staff dealing as specified in Part 4; Management company shall have an operating system sufficiently and effectively in order to protect any acts according to paragraph one which may create conflict of

Part 3; (4) Staff dealing as specified in Part 4; Management company shall have an operating system sufficiently and effectively in order to protect any acts according to paragraph one which may create

-2495-1366 Website: www.kiatnakin.co.th http://www.kiatnakin.co.th/ 2 Management Discussion and Analysis (MD&A) For the first quarter ended March 31, 2019 comparing operating performance and financial