MANAGEMENT STOCK OPTION PLAN continued INTEREST INCOME

PT BANK MANDIRI PERSERO TBK. AND SUBSIDIARIES NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS Six Months Ended June 30, 2006 Unaudited and 2005 Audited Expressed in millions of Rupiah, unless otherwise stated 106

33. MANAGEMENT STOCK OPTION PLAN continued

The fair value of the options granted were estimated using the Black-Scholes option-pricing model with the following assumptions: MSOP – Stage 1 MSOP –Stage 2 Risk free interest rate 8.46 9.50 Expected period of option 5 years 5 years Expected stock’s volatility 24.53 50 Expected dividend yield 7.63 7.63 Employee turnover rate 1 1 A summary of the Management Stock Option Plan and the movements during the year full amount: 2006 2005 Number of Options Number of Options Options outstanding at the beginning of period 434,866,421 245,728,913 Options granted during the period - - Options exercised during the period 55,906,038 17,212,335 Options that can be exercised at the end of the period 378,960,383 228,516,578 The General Shareholders’ Meeting held on May 22, 2006 approved the MSOP – Stage 3 amounting to 309,416,215 share options or 1.55 from fully paid up capital at IPO to purchase new shares B series to be issued. The General Shareholders’ Meeting also gave authorities to the commissioners to determine implementation and controlling policy for MSOP – Stage 3 program including the option execution and report them in the next General Shareholders’ Meeting. Until June 30, 2006, the MSOP – Stage 3 has not been implemented. Share options amounted to Rp171,115 and Rp15,930 as of June 30, 2006 and 2005. MSOP – Stage 1 and MSOP – Stage 2 expense which was recorded as salaries and employee benefits for the six-month periods ended June 30, 2006 and 2005 was Rp71,207 and Rp3,299, respectively Note 42.

34. INTEREST INCOME

Interest income was derived from the following: 2006 2005 Government Recapitalization Bonds 5,707,072 3,568,471 Loans 5,471,154 4,776,703 Securities 809,981 554,306 Placements with Bank Indonesia and other banks 601,639 274,550 Fees and commissions 294,308 298,039 Others 382,166 83,925 13,266,320 9,555,994 Included in interest income from loans and others is syariah income for the six month period ended June 30, 2006 and 2005 amounting to Rp377,234 and Rp392,445, respectively, with details as follows: 2006 2005 Murabahah income 238,339 289,128 Musyarakah income 87,014 61,276 Others 51,881 42,041 377,234 392,445 , PT BANK MANDIRI PERSERO TBK. AND SUBSIDIARIES NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS Six Months Ended June 30, 2006 Unaudited and 2005 Audited Expressed in millions of Rupiah, unless otherwise stated 107

35. INTEREST EXPENSE