MATI 13/2560 August 11, 2017 Subject Consolidated Financial Report for the six-month period which ended at June 30, 2017 To Director and Manager The Stock Exchange of Thailand Six-month period

MATI 19/2560 November 13, 2017 Subject Consolidated Financial Report for the nine-month period which ended at September 30, 2017 To Director and Manager The Stock Exchange of Thailand Nine-month

MATI 21/2561 November 13, 2018 Subject Consolidated Financial Report for the nine-month period which ended at September 30, 2018 To Director and Manager The Stock Exchange of Thailand Nine-month

MATI 10/2563 August 14, 2020 Subject Consolidated Financial Report for the six-month period which ended at June 30, 2020 To Director and Manager, The Stock Exchange of Thailand Six-month period

stock repurchase period was from 4 December 2019 to 3 June 2022). As a result of the above reasons, the interest bearing debt to equity ratio and the debt to equity ratio has increased from 0.41:1 to 0.58

. 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

/2561 November 12, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q3/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

/2561 June 19, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q1/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

/2561 August 7, 2018 Subject: Management’s discussion and analysis of the Company’s operating results for Q2/2018 period To: President The Stock Exchange of Thailand DOD Biotech Public Company Limited

Liquidity Ratio Current Ratio (Time) 1.9 2.0 Quick Ratio (Time) 4.1 4.7 Collection Period (Day) 20.4 21.4 Stock Turnover Period (Day) 7.8 6.2 Payment Period (Day) 33.6 33.8 Profitability Ratio Gross Profit