the legal disputes with National Telecom Public Company Limited (NT). As a result, AIS agreed to pay for dispute settlement to NT in an amount of Bt447.87mn which has previously been provisioned for

term. In addition to achieving revenue growth, the company-wide cost optimization is ongoing and translated into EBITDA expansion of +9% YoY and +2.4% QoQ to stand at Bt18,905mn, a reported margin of

Management Discussion and Analysis for the First Quarter of Year 2018 Business Overview Business overview of One to One Contacts Public Company Limited and its subsidiaries (“the Group”) for the

ที่ กตพ Ref. DBP. 030 / 2019 February 20, 2019 Subject : Clarification on Operating Results of Year 2018 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited

Management Discussion and Analysis for the Year 2018 Business Overview Business overview of One to One Contacts Public Company Limited and its subsidiaries (“the Group”) for the year 2018 compared to

Management Discussion and Analysis for the Year 2019 Business Overview Business overview of One to One Contacts Public Company Limited and its subsidiaries (“the Group”) for the year 2019 compared to

Ref. DBP. 025 / 2018 February 21, 2018 Subject : Clarification on operating results of Year 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its

Management Discussion and Analysis for the First Quarter of Year 2019 Business Overview Business overview of One to One Contacts Public Company Limited and its subsidiaries (“the Group”) for the

Products Public Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial statements for the 1st

Company Limited and its Subsidiary (together referred to as “Corporate Group”) would like to clarify on the operating results according to the consolidated financial statements for the 1st quarter ending