and Exchange Commission, resulted from the instruction or the failure to give instruction which is a duty required to be performed. This case is in the process of inquiry by the inquiry official. DAB

failure to prepare and submit a financial statement for the year 2022 to the SEC Office within the period specified in the notification of the Capital Market Board, resulted from the instruction or the

RICH’s failure to prepare and submit a financial statement for the year 2022 to the SEC Office within the period specified in the notification of the Capital Market Board, resulted from the instruction or

instruction or the failure to give instruction which is a duty required to be performed. This case is in the process of inquiry by the inquiry official SEC Act S.300 in conjunction with 33 Criminal Complaint

and Exchange Commission, resulted from the instruction or the failure to give instruction which is a duty required to be performed. This case is in the process of inquiry by the inquiry official. DAB

Re: Guidelines for the Book Building and the Determination of Offering Price to Public and Individual

Period As Of Details DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED 2023 Reviewed Company Q2 30/06/2023 DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED 2023 Reviewed Consolidated Q2 30/06/2023 DIAMOND

Year Receive Date Details DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED 2022 30/03/2023 DIAMOND BUILDING PRODUCTS PUBLIC COMPANY LIMITED 2021 22/03/2022 DIAMOND BUILDING PRODUCTS PUBLIC COMPANY

Re: Guidelines for the Book Building and the Determination of Offering Price to Public and Individual (No. 2)

Offeror : SCG Building Materials Company Limited | Date of submission of the Statement of Intention : 08/03/2010