Subject: Management Discussion and Analysis - for the period of 1Q2019. To: The President of Stock Exchange of Thailand B-52 Capital Public Company Limited (“the Company”) would like to notify the operating

No No. CC20190505ELE May 14, 2019 Re: Clarification of the changes in operation performance for the first quarter ended 31 March 2019 Attn: The President The Stock Exchange of Thailand Cal-Comp

to the same period of 2018 To : The President of the Stock Exchange of Thailand The Company would like to provide details of changes in profit and loss of the first quarter 2019 interim consolidated

Ref: No 18/2005 Ref: No 32/2019 June 27, 2019 Subject : Promissory note from connected persons and granting financial assistance To : The President The Stock Exchange of Thailand The Board of

Ref. HF 0114 / 2562 August 5th, 2019 Subject : Disclosure of Connected Transaction. Attn : Managing Director of the Stock Exchange of Thailand. According to the resolution of the Board of Director

November 28, 2005 No. 10/2019 August 7, 2019 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating

7 August 2019 Subject: Management Discussion and Analysis for the Quarter 2 Ending 30 June 2019 Attention: President Stock Exchange of Thailand Please find below the additional information supporting

Ref. HF 0114 / 2562 August 5th, 2019 Subject : Disclosure of Connected Transaction. (Edit) Attn : Managing Director of the Stock Exchange of Thailand. According to the resolution of the Board of

August 8, 2019 SET-19-AC-003 Dear The President The Stock Exchange of Thailand Subject: Clarification of Result’s Operation for the six months ended June 30, 2019 According to the resolution of BKD’s

Page 1 of 2 August 9, 2019 Re: Management Discussion and Analysis for Quarter 2/2019 (June 30 ,2019) To: Director and Manager of the Stock Exchange of Thailand Patkol Public Company Limited and its