Interest-bearing debt to equity (times) 1.2 1.1 1.1 Net debt to equity (times) 1.0 0.9 0.9 Net debt to EBITDA (times) 0.8 0.8 0.9 Net debt & lease liability & spectrum license payable to EBITDA 2.3 2.1 2.2

-Translation- Ref. No. PorBor. 029 / 2020 19 June 2020 Subject: Entering into Transaction of Disposing of Subsidiary’s Machines for the Debenture Debt repayment (Additional information) To: President

8.3824, the total of Baht 256,500,000. Conditions for the debt The seller agrees to proceed for the Nation University to repay the debt for the loans and/or other debts between the Page 2 payment Nation

-Translation- Ref. No. PorBor.025 / 2019 August 28, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s Land and Buildings for the Debenture Debt repayment (Additional information

to that of 2Q2019. Debt to equity ratio was 1.91, increasing from previous year, as a result of the adoption of TFRS16, which increased lease liability in 2Q2020 by Bt160.41mn. Interest-bearing debt to

0.8 Net debt & lease liability & spectrum license payable to EBITDA 2.2 2.2 2.0 Current Ratio (times) 0.4 0.3 0.4 Interest Coverage (times) 16.0 14.8 15.9 Debt Service Coverage Ratio (times) 4.4 2.1 3.1

(Times) 9.77 8.44 Average Collection Period (Days) 37 43 Inventory Turnover Period (Days) 19 19 Average Payable Period (Days) 16 18 Cash Cycle (Days) 40 44 Total Debt to Equity Ratio (Times) 0.47 0.51

Account Receivable Turnover Ratio (Times) 9.37 8.58 Average Collection Period (Days) 38 42 Inventory Turnover Period (Days) 13 19 Average Payable Period (Days) 19 18 Cash Cycle (Days) 32 43 Total Debt to

Average Payable Period (Days) 22 17 Cash Cycle (Days) 38 48 Total Debt to Equity Ratio (Times) 0.49 0.51 Interest Coverage Ratio (Times) 114.45 73.26 Debt Service Coverage Ratio (Times) 14.12 6.55 (3) Asset

Average Payable Period (Days) 17 17 Cash Cycle (Days) 45 48 Total Debt to Equity Ratio (Times) 0.54 0.51 Interest Coverage Ratio (Times) 85.99 73.26 Debt Service Coverage Ratio (Times) 21.20 6.55 (3) Asset