EXHIBIT 99.1 [MERCANTILE(R) BANK CORPORATION LOGO] FOR FURTHER INFORMATION: AT MERCANTILE BANK CORPORATION: FOR MEDIA: Gerald R. Johnson, Jr. Charles Christmas Linda Margolin Chairman & CEO Chief Financial Officer Margolin & Associates, Inc. 616-406-3700 616-406-3750 216-765-0953 gjohnson@mercbank.com cchristmas@mercbank.com lmm@margolinIR.com MERCANTILE BANK CORPORATION REPORTS SECOND QUARTER EPS OF $0.46, UP 48.4 PERCENT WYOMING, Mich., July 9 -- Mercantile Bank Corporation (Nasdaq: MBWM), a rapidly growing community banking organization, reported second quarter 2003 net income of $2.5 million, an increase of 48.0 percent over the $1.7 million reported in the prior year second quarter. Diluted per share earnings were $0.46, up 48.4 percent from the $0.31 reported in the prior period. Performance measurements continue to strengthen. Second quarter returns on average equity and average assets were 12.36 percent and 1.02 percent, respectively, compared to 9.32 percent and 0.90 percent for the second quarter of 2002. Mercantile's net interest margin and efficiency ratio improved as well. Gerald R. Johnson, Jr., Chairman and CEO, commented, "From both a growth as well as a profitability perspective, our performance continues to be exceptional, despite the combined impact of a weak economy and low interest-rate environment. This past quarter, we exceeded $1 billion in total assets and year-to-date, our return on assets is tracking at 0.99 percent. For the second year in a row, Mercantile's performance has been recognized by Fortune Magazine in its list of 100 fastest-growing small businesses. "We've taken steps to support continued growth. During the quarter, we opened a fifth full-service office, rounding out our geographical presence in the Grand Rapids market. We also opened a retail mortgage loan production office in Holland, Michigan, a community thirty miles southwest of Grand Rapids. This office will be replaced at a later date by a full-service branch. "The success of our growth strategy is based on the highest level of customer service. Our strategy continues to be validated by shareholders as well as customers. Mercantile's financial performance, combined with the appeal of both a cash and stock dividend, contributed to a 45 percent increase in stock price over the past 52 weeks." Total revenue, comprised of net interest income and non-interest income, was $8.7 million for the second quarter of 2003, an increase of 38.9 percent over the $6.3 million reported in the second quarter of 2002. Net interest income increased 31.0 percent to $7.5 million, reflecting the combined impact of a 30.3 percent increase in average earning assets and a 2 basis point increase in the net interest margin, to 3.24 percent. Mr. Johnson noted, "New business relationships continue to drive our growth in net interest income. Through effective asset/liability management, we have maintained our net interest margin within a 10 basis point band over the last four quarters." Second quarter 2003 non-interest income rose 120.1 percent above the prior year period. Excluding one-time securities gains of $0.21 million recorded in the 2003 second quarter, non-interest income rose 82.4 percent, benefiting from growth in new and existing business relationships, as well as increased mortgage banking activity, further enhanced by the recent opening of the Holland retail mortgage loan production office. Non-interest expense increased 37.1 percent as a result of overall growth in the company. The 41.5 percent increase in salaries and benefits reflects a 38.7 percent increase in staffing levels. Mr. Johnson commented, "Our expense levels have been impacted by the opening of two full-service branches and a loan production office over the last three quarters, the hiring of two experienced commercial lenders and support staff. Nonetheless, we grew revenues at a faster rate than expenses during the second quarter, which resulted in an improved efficiency ratio." Mercantile's efficiency ratio was 49.9 percent in the second quarter of 2003 compared to 50.5 percent in the second quarter of 2002. Mr. Johnson commented, "Despite double-digit loan growth and challenging economic conditions, we are maintaining excellent asset quality. This achievement speaks highly of our credit management process and business development activities." For the second quarter of 2003, past due and non-accrual loans stand at $495,000, or 0.06 percent of total loans, and net charge-offs remain consistently low at 0.04 percent of average loans. The loan and lease loss reserve stands at 1.40 percent of loans and leases as of second quarter end. Total assets were $1,034.8 million at June 30, 2003, an increase of $252.8 million, or 32.3 percent, from the prior year quarter-end. Loans were up $198.1 million, or 29.7 percent. Total deposits grew by $199.0 million, or 30.9 percent, led by a 76.5 percent growth in non-interest bearing demand deposits. Shareholders' equity ended the quarter at $83.5 million, a twelve-month increase of $8.4 million, or 11.2 percent. Mercantile remains a "well-capitalized" institution; total risk-based capital at June 30, 2003 was 11.38 percent. Mercantile paid a cash dividend of $0.08 per share in the second quarter of this year. At quarter-end, Mercantile had 5,422,644 shares of common stock outstanding. Mr. Johnson concluded, "We are pleased to deliver to our shareholders another superb quarter characterized by strong growth, excellent asset quality, and improved earnings performance." About Mercantile Bank Corporation Mercantile Bank Corporation is the bank holding company for Mercantile Bank of West Michigan. The Bank's primary service area is the Kent and Ottawa County area of West Michigan, which includes the City of Grand Rapids, the second-largest city in the State of Michigan. The Bank, through its main office and four full-service branches in greater Grand Rapids, provides a wide variety of commercial banking services primarily to businesses, individuals and governmental units. In addition, a retail mortgage loan production office is located in Holland, Michigan, a community located thirty miles southwest of Grand Rapids. Mercantile Bank Corporation's common stock is listed on the Nasdaq National Market under the symbol "MBWM." Forward-Looking Statements This news release contains comments or information that constitute forward-looking statements (within the meaning of the Private Securities Litigation Reform Act of 1995) that are based on current expectations that involve a number of risks and uncertainties. Actual results may differ materially from the results expressed in forward-looking statements. Factors that might cause such a difference include changes in interest rates and interest rate relationships; demand for products and services; the degree of competition by traditional and non-traditional competitors; changes in banking regulation; changes in tax laws; changes in prices, levies, and assessments; the impact of technological advances; governmental and regulatory policy changes; the outcomes of contingencies; trends in customer behavior as well as their ability to repay loans; changes in the national and local economy; and other factors, including risk factors, referred to from time to time in filings made by Mercantile with the Securities and Exchange Commission. Mercantile undertakes no obligation to update or clarify forward-looking statements, whether as a result of new information, future events or otherwise. Mercantile Bank Corporation Second Quarter 2003 Results MERCANTILE BANK CORPORATION CONSOLIDATED BALANCE SHEETS JUNE 30, DECEMBER 31, JUNE 30, 2003 2002 2002 ----- ----- ---- (Unaudited) (Audited) (Unaudited) ASSETS Cash and due from banks $ 34,202,000 $ 23,404,000 $ 16,357,000 Short term investments 137,000 213,000 194,000 Federal funds sold 3,000,000 4,500,000 0 --------------- --------------- --------------- Total cash and cash equivalents 37,339,000 28,117,000 16,551,000 Securities available for sale 60,980,000 59,614,000 53,006,000 Securities held to maturity 40,587,000 36,493,000 29,751,000 Federal Home Loan Bank stock 2,250,000 786,000 786,000 Total loans and leases 866,009,000 771,554,000 667,862,000 Allowance for loan and lease losses (12,158,000) (10,890,000) (9,562,000) --------------- --------------- --------------- Total Loans and leases, net 853,851,000 760,664,000 658,300,000 Premises and equipment, net 14,171,000 12,174,000 10,933,000 Bank owned life insurance policies 15,581,000 14,876,000 4,082,000 Accrued interest receivable 3,461,000 3,336,000 2,965,000 Other assets 6,554,000 5,795,000 5,603,000 --------------- --------------- --------------- Total assets $ 1,034,774,000 $ 921,855,000 $ 781,977,000 =============== =============== =============== LIABILITIES AND STOCKHOLDERS' EQUITY Deposits: Noninterest-bearing $ 77,025,000 $ 62,405,000 $ 43,649,000 Interest-bearing 766,562,000 691,708,000 600,999,000 --------------- --------------- --------------- Total deposits 843,587,000 754,113,000 644,648,000 Securities sold under agreement to repurchase 39,690,000 50,335,000 39,636,000 Federal funds purchased 0 0 1,300,000 Federal Home Loan Bank advances 45,000,000 15,000,000 0 Other borrowed money 922,000 576,000 463,000 Accrued expenses and other liabilities 6,118,000 5,997,000 4,906,000 Trust preferred securities 16,000,000 16,000,000 16,000,000 --------------- --------------- --------------- Total liabilities 951,317,000 842,021,000 706,953,000 STOCKHOLDERS' EQUITY Common stock 75,595,000 75,530,000 69,375,000 Retained earnings 7,157,000 3,250,000 4,969,000 Accumulated other comprehensive income 705,000 1,054,000 680,000 --------------- --------------- --------------- Total stockholders' equity 83,457,000 79,834,000 75,024,000 Total liabilities and stockholders' equity $ 1,034,774,000 $ 921,855,000 $ 781,977,000 =============== =============== =============== Mercantile Bank Corporation Second Quarter 2003 Results MERCANTILE BANK CORPORATION CONSOLIDATED REPORTS OF INCOME THREE MONTHS ENDED THREE MONTHS ENDED SIX MONTHS ENDED SIX MONTHS ENDED June 30, 2003 June 30, 2002 June 30, 2003 June 30, 2002 ------------- ------------- ------------- ------------- (Unaudited) (Unaudited) (Unaudited) (Unaudited) INTEREST INCOME Loans and leases, including fees $12,223,000 $10,514,000 $23,666,000 $20,421,000 Investment securities 1,186,000 1,103,000 2,402,000 2,200,000 Federal funds sold 23,000 22,000 39,000 57,000 Short-term investments 1,000 0 1,000 1,000 ----------- ----------- ----------- ----------- Total interest income 13,433,000 11,639,000 26,108,000 22,679,000 INTEREST EXPENSE Deposits 5,165,000 5,281,000 10,401,000 10,690,000 Short-term borrowings 173,000 225,000 344,000 426,000 Federal Home Loan Bank advances 183,000 0 257,000 0 Long-term borrowings 401,000 398,000 801,000 794,000 ----------- ----------- ----------- ----------- Total interest expense 5,922,000 5,904,000 11,803,000 11,910,000 ----------- ----------- ----------- ----------- Net interest income 7,511,000 5,735,000 14,305,000 10,769,000 Provision for loan and lease losses 845,000 682,000 1,470,000 1,142,000 ----------- ----------- ----------- ----------- Net interest income after provision for loan and lease losses 6,666,000 5,053,000 12,835,000 9,627,000 NON INTEREST INCOME Service charges on accounts 280,000 223,000 549,000 417,000 Net gain on sales of securities 212,000 0 212,000 149,000 Other income 743,000 338,000 1,451,000 564,000 ----------- ----------- ----------- ----------- Total non interest income 1,235,000 561,000 2,212,000 1,130,000 NON INTEREST EXPENSE Salaries and benefits 2,759,000 1,950,000 5,256,000 3,628,000 Occupancy 345,000 266,000 679,000 531,000 Furniture and equipment 245,000 189,000 466,000 362,000 Other expense 1,012,000 776,000 1,989,000 1,525,000 ----------- ----------- ----------- ----------- Total non interest expense 4,361,000 3,181,000 8,390,000 6,046,000 ----------- ----------- ----------- ----------- Income before federal income tax expense 3,540,000 2,433,000 6,657,000 4,711,000 Federal income tax expense 1,000,000 717,000 1,884,000 1,391,000 ----------- ----------- ----------- ----------- Net income $ 2,540,000 $ 1,716,000 $ 4,773,000 $ 3,320,000 =========== =========== =========== =========== Basic earnings per share $ 0.47 $ 0.32 $ 0.88 $ 0.61 Diluted earnings per share $ 0.46 $ 0.31 $ 0.86 $ 0.60 Average shares outstanding * 5,421,120 5,405,759 5,416,844 5,405,647 Average diluted shares outstanding * 5,545,892 5,510,003 5,540,705 5,503,754 * - Adjusted for 5% stock dividend paid on February 3, 2003 Mercantile Bank Corporation Second Quarter 2003 Results MERCANTILE BANK CORPORATION CONSOLIDATED FINANCIAL HIGHLIGHTS (Unaudited) QUARTERLY YEAR-TO-DATE ------------------------------------------------------------------ ------------------------ 2003 2003 2002 2002 2002 (dollars in thousands except 2ND QTR 1ST QTR 4TH QTR 3RD QTR 2ND QTR 2003 2002 per share data) ---------- ---------- ----------- ---------- ---------- ---------- --------- EARNINGS Net interest income $ 7,511 6,794 6,603 6,282 5,735 14,305 10,769 Provision for loan and lease losses $ 845 625 980 880 682 1,470 1,142 NonInterest income $ 1,235 977 1,004 919 561 2,212 1,130 NonInterest expense $ 4,361 4,029 3,464 3,271 3,181 8,390 6,046 Net income $ 2,540 2,233 2,281 2,156 1,716 4,773 3,320 Basic earnings per share $ 0.47 0.41 0.42 0.40 0.32 0.88 0.61 Diluted earnings per share $ 0.46 0.40 0.41 0.39 0.31 0.86 0.60 Average shares outstanding * 5,421,120 5,412,521 5,405,759 5,405,759 5,405,759 5,416,844 5,405,647 Average diluted shares outstanding * 5,545,892 5,535,167 5,507,165 5,500,028 5,510,003 5,540,705 5,503,754 PERFORMANCE RATIOS Return on average assets 1.02% 0.97% 1.02% 1.04% 0.90% 0.99% 0.90% Return on average common equity 12.36% 11.23% 11.52% 11.20% 9.32% 11.81% 9.16% Net interest margin (fully tax-equivalent) 3.24% 3.17% 3.21% 3.27% 3.22% 3.21% 3.13% Efficiency ratio 49.86% 51.85% 45.54% 45.42% 50.52% 50.80% 50.81% Full-time equivalent employees 147 128 117 113 106 147 106 CAPITAL Average equity to average assets 8.22% 8.59% 8.89% 9.30% 9.70% 8.40% 9.87% Tier 1 leverage capital ratio 9.86% 10.30% 10.72% 11.26% 11.87% 9.86% 11.87% Tier 1 risk-based capital ratio 10.13% 10.55% 10.85% 11.24% 11.91% 10.13% 11.91% Total risk-based capital ratio 11.38% 11.79% 12.10% 12.48% 13.16% 11.38% 13.16% Book value per share $ 15.39 15.05 14.77 14.35 13.88 15.39 13.88 Cash dividend per share $ 0.08 0.08 NA NA NA 0.16 NA ASSET QUALITY Gross loan charge-offs $ 297 132 287 250 76 429 169 Net loan charge-offs $ 93 109 283 249 45 202 74 Net loan charge-offs to average loans 0.04% 0.06% 0.15% 0.14% 0.03% 0.05% 0.02% Allowance for loan and lease losses $ 12,158 11,406 10,890 10,193 9,562 12,158 9,562 Allowance for losses to total loans 1.40% 1.40% 1.41% 1.42% 1.43% 1.40% 1.43% Past due and nonaccrual loans $ 495 533 796 994 451 495 451 Past due and nonaccrual loans to total loans 0.06% 0.07% 0.10% 0.14% 0.07% 0.06% 0.07% Other real estate and repossessed assets $ 0 134 100 0 0 0 0 END OF PERIOD BALANCES Loans and leases $ 866,009 812,487 771,554 717,199 667,862 866,009 667,862 Total earning assets (before allowance) $ 972,963 914,109 873,160 816,451 751,599 972,963 751,599 Total assets $1,034,774 967,787 921,856 870,382 781,977 1,034,774 781,977 Deposits $ 843,587 801,097 754,113 722,150 644,648 843,587 644,648 Shareholders' equity $ 83,457 81,530 79,835 77,580 75,024 83,457 75,024 AVERAGE BALANCES Loans and leases $ 842,370 786,406 736,029 688,550 646,844 814,542 626,567 Total earning assets (before allowance) $ 953,851 892,660 836,809 782,435 732,080 923,424 712,261 Total assets $1,002,087 938,043 883,860 821,149 761,409 970,242 740,901 Deposits $ 809,986 774,836 725,145 676,661 624,003 792,508 606,953 Shareholders' equity $ 82,410 80,606 78,590 76,350 73,826 81,513 73,105 * - Adjusted for 5% stock dividend paid on February 3, 2003