Filing and Exemption from Filing of Registration Statement for Debt Securities Offering (No. 4)

Selling of Newly Issued Debt Securities and Derivative Warrants of Securities Issuer (codified)

Determination of Definitions in Notifications relating to Issuance and Offer for Sale of Debt Securities

) 0.29 0.31 0.15 Debt-to-equity ratio (time) 2.03 1.60 2.00 Gross Profit margin (%) (0.77) 2.83 5.19 Net profit margin to sales* (%) (5.55) (1.51) (4.81) Average return on equity** (%) (154.97) (18.81

% 19.80% 17.70% 14.40% 12.38% Return on asset (ROA) 9.00% 9.20% 8.20% 6.80% 5.73% Interest bearing Debt / Equity (IBD/Equity) 0.56 0.62 0.80 0.80 0.83 Return on equity (ROE) and Return on assets (ROA) as of

(times) 15.3 14.1 13.4 Network and PPE 125,510 43% 123,755 35% Debt Service Coverage Ratio (times) 4.1 2.7 2.2 Right of use 0 0.0% 60,892 17% Return on Equity 56% 41% 37% Intangible asset 5,468 1.9% 5,427

of 12 (1) Return on assets and return on equity are calculated based on net profit in the last twelve months (2) Interest bearing debt to equity net of cash and cash equivalent and short-term

Debt Service Coverage Ratio (times) 2.4 1.6 1.6 Return on Equity 35% 37% 38% Figures from P&L are YTD annualized. *Exclude Lease liability Debt Repayment Schedule License Payment Schedule Bt mn Debenture

average total assets Return on equity (%) = Net profit divided by average equities attributed to owners of the company Debt to equity (x) = Total debt divided by shareholders’ equities Interest bearing debt

Sales Revenue (%) 6.6 5.0 5.9 Net Profit to Sales Revenue (%) 4.5 0.8 4.9 Return on Total Assets (%) 4.1 (10.9) 2.3 Return on Equity (%) 3.2 (11.5) 1.0 Debt to Equity (x) 0.4 0.3 0.3 Interest Bearing Debt