-9320 1 Ref: PCL 2019/003 February 20, 2019 Subject: Management Discussion and Analysis Yearly Ended 31 December 2018 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public

. DOD2019/004 February 20, 2019 Subject: Management’s discussion and analysis of the Company’s operating results for the year 2018 period To: President The Stock Exchange of Thailand DOD Biotech Public

Ref. PDI/BK-BS-011/2019 25th February 2019 Re: Management Discussion and Analysis (MD&A) For the year ended December 31, 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod

November 14, 2019 Re: Clarification of the operating results of company and its subsidiaries for the three month period end March 31, 2019 To: President The Stock Exchange of Thailand K.C. Property

February 26, 2020 Subject : Management Discussion and Analysis for year and 4th quarter ended December 31, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1

) August 9, 2017 Re : Report the operating result for the year ended June 30 ,2017 by more than 20 percent. To : Director and Manager the Stock Exchange of Thailand Approved by the Board of Directors of

ที่ กบร No. Kor Bor Ror. 021/2017 August 10, 2017 President The Stock Exchange of Thailand Re : Credit guarantee to Sahapat Real Estate Co., Ltd. on shareholding proportion Ref : Document no. Kor Bor

Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company Limited (“the Company”) would like to clarify on the performance and the financial status which had changed over 20 percent

Stock Exchange of Thailand Please find the reviewed Financial Statement for the Quarter 2/2017 ending 30 June 2017 which had been reviewed by Certified Auditor and has been approved by the Board of

Ref. No. 1711/056EN November 8, 2017 Subject Management Discussion and Analysis for Q3/2017 (Ending September 30, 2017) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public