Mr. Permsin Yongvongpaiboon Mrs. Chamaiporn Yongwongpaiboon, Managing Director and Accounting and Finance Director of Permsin Steel Works Public Company Limited ("PERM"), knew the inside
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
ที่ กตพ Ref. DBP. 108 / 2019 August 13, 2019 Subject : Clarification on Operating Results for the 2nd quarter and 6-month Period ending June 30, 2019 To : President The Stock Exchange of Thailand
Ref. DBP. 153 / 2019 November 11, 2019 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2019 To : President The Stock Exchange of Thailand
Ref. DBP. 111 / 2020 August 10, 2020 Subject : Clarification on Operating Results for the 2nd quarter and 6-month period ending June 30, 2020 To : President The Stock Exchange of Thailand Diamond
Accepted Accounting Principles (Thai GAAP). A) One-time loss on impairment assets on Goodwill of investment in TBSP regarding to Thai Generally Accepted Accounting Principles (Thai GAAP). B) One-time loss on
life insurance; (c) any other financial institution as prescribed by the SEC Office; (3) “professional code of ethics” means: (a) professional code of ethics established by the Federation of Accounting
: ............................................................................................................ Federation of Accounting Professions Membership No: .................... Expiry Date: ............. 3. Age:............. years Date of Birth