Exhibit 99.1 Harleysville Group Reports Second Quarter 2004 Results HARLEYSVILLE, Pa., July 29 /PRNewswire-FirstCall/ -- Harleysville Group Inc. (Nasdaq: HGIC) today reported diluted net income of $0.32 per share in the second quarter of 2004, compared to $0.33 per share in the second quarter of 2003. For the six months ended June 30, 2004 and 2003, diluted net income per share was $0.87 and $0.23, respectively. There were no realized investment gains or losses in the second quarter of either year. For the six months, the company reported $0.27 per share in realized gains in 2004, compared to a realized loss of $0.01 per share in 2003. There was no significant net reserve development in the first six months of 2004. In 2003, the company's six-month earnings were reduced by $0.43 per share after tax due to a first quarter workers compensation reserve adjustment. The company reported diluted operating income of $0.32 per share for the second quarter of 2004, compared to $0.33 per share in the second quarter of 2003. For the six-month periods, diluted operating income per share was $0.60 in 2004 and $0.24 in 2003. Operating income is a non-GAAP financial measure defined by the company as net income excluding after-tax realized gains and losses on investments. "We've made progress and again improved our results this quarter over the prior quarter, and we're confident we're on a course that will lead us to sustainable long-term growth and profitability," commented Michael L. Browne, Harleysville Group's chief executive officer. "We continue to focus on improving our four cornerstone areas-underwriting, claims handling, service to agents and policyholders, and productivity-as we strive to return our company to its past high levels of financial performance." Harleysville Group's overall statutory combined ratio* was 105.4 percent in the second quarter of 2004, compared to 105.2 percent in the second quarter of 2003. For the six months, the statutory combined ratio was 106.3 percent in 2004, versus 110.2 percent in 2003. In 2003, the workers compensation reserve adjustment added 4.9 points to the six-month combined ratio. Second quarter net written premiums were $223.1 million in 2004, compared to $222.6 million in 2003. Net written premiums through six months were $429.1 million in 2004 and $437.8 million in 2003. Second quarter pretax investment income declined 1 percent to $21.4 million, while six-month pretax investment income was unchanged at $43.1 million. After-tax investment income was unchanged in the second quarter at $16.6 million, but rose 1 percent to $33.4 million during the six-month period. Operating cash flow for the six months was $23.9 million. Commercial lines -- Net written premiums in commercial lines increased 4 percent in the second quarter of 2004 to $180.0 million. For the six months, net written premiums were up 1 percent to $348.2 million. The commercial lines statutory combined ratio was 106.7 percent in the second quarter of 2004, versus 101.7 percent in the second quarter of 2003. For the six months, the statutory combined ratio was 105.7 percent in 2004, compared to 107.8 percent in 2003. In 2003, the workers compensation reserve adjustment added 6.6 points to the six-month commercial lines statutory combined ratio. Personal lines -- Harleysville Group's personal lines statutory combined ratio was 100.6 percent in the second quarter of 2004, versus 115.8 percent during the second quarter of 2003. For the six months, the statutory combined ratio was 108.4 percent in 2004, compared to 117.5 percent in 2003. In 2003, weather-related losses and abnormally high large loss activity in the homeowners line also contributed to the higher statutory combined ratio. Net written premiums decreased 13 percent to $43.1 million in the second quarter of 2004, and were down 14 percent to $80.9 million through six months. Outlook -- "Harleysville Group has a good capital base and a strong balance sheet, a great franchise, employees who are focused on making us succeed, and strong relationships with a solid and loyal network of independent agents," said Browne. "Looking forward, we have turned our attention to fine-tuning our commercial and personal lines business strategies to deliver the consistent growth and profitability that we seek." Webcast -- The company will host a live Webcast today, Thursday, July 29, 2004, at 9:00 a.m. (ET) to discuss its second quarter results. The Webcast will be available from the Investors section of the company's Web site (http://www.harleysvillegroup.com) until July 29, 2005. GAAP and non-GAAP financial measures -- The company uses a non-GAAP financial measure called "operating income" that management believes is useful to investors because it illustrates the performance of normal, ongoing operations, which is important in understanding and evaluating the company's financial condition and results of operations. While this measure is utilized by investors to evaluate performance, it is not a substitute for the U.S. GAAP financial measure of net income. Therefore, a reconciliation of this non-GAAP financial measure to the U.S. GAAP financial measure of net income is provided following the Consolidated Statements of Income contained in this release. Management also uses operating income for goal setting, determining employee and senior management compensation, and evaluating performance. Corporate profile -- Harleysville Insurance is a premier provider of insurance products and services for small businesses and individuals, and ranks among the top 60 U.S. property/casualty insurance groups based on net written premiums. Harleysville Mutual Insurance Company owns 57 percent of Harleysville Group Inc. (Nasdaq: HGIC), a publicly traded holding company for nine regional property/casualty insurance companies collectively rated A- (Excellent) by A.M. Best Company. Harleysville Insurance, which distributes its products exclusively through independent insurance agencies, currently operates in 32 eastern and midwestern states. Further information can be found on the company's Web site at http://www.harleysvillegroup.com. * "Statutory combined ratio" is a non-GAAP measure of underwriting profitability and is based on numbers determined under statutory accounting practices as filed with state insurance regulators. It is the sum of the ratio of losses to premiums earned plus the ratio of underwriting expenses to premiums written. A ratio of less than 100 percent indicates underwriting profitability. Certain of the statements contained herein (other than statements of historical facts) are forward-looking statements. Such forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995 and include estimates and assumptions related to economic, competitive and legislative developments. These forward- looking statements are subject to change and uncertainty that are, in many instances, beyond the company's control and have been made based upon management's expectations and beliefs concerning future developments and their potential effect on Harleysville Group Inc. There can be no assurance that future developments will be in accordance with management's expectations so that the effect of future developments on Harleysville Group will be those anticipated by management. Actual financial results including premium growth and underwriting results could differ materially from those anticipated by Harleysville Group depending on the outcome of certain factors, which may include changes in property and casualty loss trends and reserves; catastrophe losses; the insurance product pricing environment; changes in applicable law; government regulation and changes therein that may impede the ability to charge adequate rates; changes in accounting principles; performance of the financial markets; fluctuations in interest rates; availability and price of reinsurance; and the status of the labor markets in which the company operates. Harleysville Group Inc. and Subsidiaries Quarter ended Six months ended June 30 June 30 FINANCIAL HIGHLIGHTS 2004 2003 2004 2003 (in thousands, except per share data) OPERATING RESULTS Diluted earnings per common share: Operating income * $0.32 $0.33 $0.60 $0.24 Realized gains (losses), net of tax 0.27 (0.01) Net income $0.32 $0.33 $0.87 $0.23 Cash dividends per common share $0.17 $0.165 $0.34 $0.33 FINANCIAL CONDITION June 30, 2004 December 31, 2003 Assets $2,627,105 $2,680,389 Shareholders' equity $569,553 $572,747 Per common share $19.00 $19.16 CONSOLIDATED STATEMENTS OF INCOME Quarter ended Six months ended June 30 June 30 (in thousands, except per share data) 2004 2003 2004 2003 REVENUES: Premiums earned $207,652 $203,755 $414,600 $402,584 Investment income, net of investment expense 21,437 21,649 43,079 43,096 Realized investment gains (losses) 59 67 12,547 (366) Other income 3,671 4,073 8,235 8,593 Total revenues 232,819 229,544 478,461 453,907 LOSSES AND EXPENSES: Losses and loss settlement expenses 148,711 147,426 299,821 311,185 Amortization of deferred policy acquisition costs 50,698 49,898 101,386 98,215 Other underwriting expenses 19,726 18,121 39,364 36,678 Interest expense 1,566 1,393 3,143 2,787 Other expenses 1,266 1,176 2,685 2,387 Total expenses 221,967 218,014 446,399 451,252 Income before income taxes 10,852 11,530 32,062 2,655 Income taxes (benefit) 1,124 1,462 5,841 (4,173) Net income $9,728 $10,068 $26,221 $6,828 Weighted average number of shares outstanding: Basic 29,959,781 30,076,989 29,960,271 30,032,397 Diluted 30,027,955 30,348,033 30,045,317 30,306,311 Per common share: Basic earnings $0.32 $0.33 $0.88 $0.23 Diluted earnings $0.32 $0.33 $0.87 $0.23 RECONCILIATION TO OPERATING INCOME : Net income $9,728 $10,068 $26,221 $6,828 Less realized investment gains (losses), net of taxes 38 44 8,155 (238) Operating income $9,690 $10,024 $18,066 $7,066 These financial figures are unaudited. * Operating income is a non-GAAP financial measure defined by the company as net income excluding after-tax realized gains and losses on investments. Harleysville Group Inc. and Subsidiaries CONSOLIDATED BALANCE SHEETS (in thousands, except share data) June 30, 2004* December 31, 2003 ASSETS Investments: Fixed maturities: Held to maturity, at amortized cost (fair value $510,782 $496,844 $439,613 and $467,485) Available for sale, at fair value (amortized cost $1,134,152 1,165,219 1,246,019 and $1,183,158) Equity securities, at fair value (cost $109,196 and $97,189) 146,418 137,590 Short-term investments, at cost, which approximates fair value 47,980 31,411 Total investments 1,856,461 1,854,633 Cash 1,050 13,430 Premiums in course of collection 151,012 140,674 Reinsurance receivable 174,880 164,841 Accrued investment income 23,042 23,086 Deferred policy acquisition costs 103,924 99,033 Prepaid reinsurance premiums 29,007 30,899 Property and equipment, net 22,497 23,824 Deferred income taxes 55,292 43,020 Securities lending collateral 145,505 221,454 Other assets 64,435 65,495 Total assets $2,627,105 $2,680,389 LIABILITIES AND SHAREHOLDERS' EQUITY Liabilities: Unpaid losses and loss settlement expenses $1,253,283 $1,219,977 Unearned premiums 450,511 437,883 Accounts payable and accrued expenses 83,275 91,999 Securities lending obligation 145,505 221,454 Debt 119,625 120,145 Due to affiliate 5,353 16,184 Total liabilities 2,057,552 2,107,642 Shareholders' equity: Preferred stock, $1 par value; authorized 1,000,000 shares; none issued Common stock, $1 par value, authorized 80,000,000 shares; issued 31,381,457 and 31,298,532 shares; outstanding 29,983,548 and 29,900,623 shares 31,381 31,299 Additional paid-in capital 158,271 156,997 Accumulated other comprehensive income 37,718 60,450 Retained earnings 366,870 350,844 Deferred compensation (200) (2,356) Treasury stock, at cost, 1,397,909 (24,487) (24,487) Total shareholders' equity 569,553 572,747 Total liabilities and shareholders' equity $2,627,105 $2,680,389 * These financial figures are unaudited. Harleysville Group Inc. and Subsidiaries SUPPLEMENTARY FINANCIAL ANALYSTS' DATA Quarter ended Six months ended June 30 June 30 (dollars in thousands) 2004 2003 2004 2003 Net premiums written* $223,095 $222,564 $429,121 $437,847 Statutory surplus * $496,170 $512,070 Pretax investment income $21,437 $21,649 $43,079 $43,096 Related federal income taxes 4,825 5,000 9,689 9,973 After-tax investment income $16,612 $16,649 $33,390 $33,123 SEGMENT INFORMATION Quarter ended Six months ended June 30 June 30 (dollars in thousands) 2004 2003 2004 2003 Revenues: Premiums earned: Commercial lines $163,791 $154,118 $326,111 $302,867 Personal lines 43,861 49,637 88,489 99,717 Total premiums earned 207,652 203,755 414,600 402,584 Net investment income 21,437 21,649 43,079 43,096 Realized investment gains (losses) 59 67 12,547 (366) Other 3,671 4,073 8,235 8,593 Total revenues $232,819 $229,544 $478,461 $453,907 Income before income taxes : Underwriting gain (loss): Commercial lines ($16,358) ($8,767) ($26,006) ($36,773) Personal lines 10 (7,848) (4,850) (15,742) SAP underwriting loss (16,348) (16,615) (30,856) (52,515) GAAP adjustments 4,865 4,925 4,885 9,021 GAAP underwriting loss (11,483) (11,690) (25,971) (43,494) Net investment income 21,437 21,649 43,079 43,096 Realized investment gains (losses) 59 67 12,547 (366) Other 839 1,504 2,407 3,419 Income before income taxes $10,852 $11,530 $32,062 $2,655 Income taxes on net investment income $4,825 $5,000 $9,689 $9,973 Income tax on remaining loss (3,701) (3,538) (3,848) (14,146) Total income taxes (benefit) $1,124 $1,462 $5,841 ($4,173) Effective tax rate on: Net investment income 22.5% 23.1% 22.5% 23.1% Net income 10.4% 12.7% 18.2% N/M These financial figures are unaudited. * Statutory data is prepared in accordance with statutory accounting rules as defined by the National Association of Insurance Commissioners' Accounting Practices and Procedures Manual and therefore is not reconciled to GAAP. Harleysville Group Inc. and Subsidiaries STATUTORY DATA BY LINE OF BUSINESS* Quarter ended Six months ended June 30 June 30 (dollars in thousands) 2004 2003 2004 2003 Net premiums written: Commercial: Automobile $62,367 $59,041 $119,128 $114,284 Workers' compensation 24,172 27,538 50,912 60,311 Commercial multi-peril 76,805 68,944 145,003 133,756 Other commercial 16,681 17,370 33,162 35,079 Total commercial $180,025 $172,893 $348,205 $343,430 Personal: Automobile $23,459 $28,998 $46,660 $58,595 Homeowners 16,514 17,995 29,482 31,467 Other personal 3,097 2,678 4,774 4,355 Total personal $43,070 $49,671 $80,916 $94,417 Total personal and commercial $223,095 $222,564 $429,121 $437,847 Combined ratios: Commercial: Automobile 104.7% 94.4% 103.9% 95.1% Workers' compensation 122.2% 120.9% 122.5% 157.1% Commercial multi-peril 105.5% 105.1% 105.3% 102.0% Other commercial 95.4% 78.4% 88.5% 81.0% Total commercial 106.7% 101.7% 105.7% 107.8% Personal: Automobile 110.9% 116.1% 114.6% 116.8% Homeowners 86.0% 113.9% 97.6% 118.7% Other personal 83.6% 123.8% 112.3% 118.8% Total personal 100.6% 115.8% 108.4% 117.5% Total personal and commercial 105.4% 105.2% 106.3% 110.2% Losses paid $142,655 $125,734 $276,715 $254,371 Net catastrophe losses incurred $1,262 $3,586 $3,887 $7,235 These financial figures are unaudited. * Statutory data is prepared in accordance with statutory accounting rules as defined by the National Association of Insurance Commissioners' Accounting Practices and Procedures Manual and therefore is not reconciled to GAAP. SOURCE Harleysville Group Inc. -0- 07/29/2004 /CONTACT: Mark Cummins (Investors), +1-215-256-5025, mcummins@harleysvillegroup.com, or Randy Buckwalter (Media), +1-215-256-5288, rbuckwalter@harleysvillegroup.com/ /Web site: http://www.harleysvillegroup.com / (HGIC) CO: Harleysville Group Inc. ST: Pennsylvania IN: INS SU: ERN CCA