EXHIBIT 99.1

ProCentury Corporation Announces First Quarter 2005 Results
COLUMBUS, Ohio, May 4 /PRNewswire-FirstCall/ — ProCentury Corporation (Nasdaq: PROS), a specialty property and casualty insurance holding company, today announced financial results for the three months ended March 31, 2005.
Highlights from the first quarter of 2005 include the following:
| • | Net income per diluted share for the first quarter of $0.23. |
|
| • | Gross premiums written of $47.6 million, an 11.2% increase from the first quarter of 2004. |
|
| • | Premiums earned of $41.5 million, a 29.5% increase from the first quarter of 2004. |
Edward Feighan, ProCentury’s Chief Executive Officer said, “We are pleased with the results achieved this quarter. As the market transitions, our focus is on our disciplined underwriting. Looking ahead, we are excited about our future prospects and continue to pursue some excellent opportunities in the markets we serve.”
Financial Results
ProCentury’s net income for the first quarter of 2005 was $3.1 million or $0.23 per diluted share compared to net income of $2.9 million or $0.58 per diluted share on a historical basis and $2.7 million or $0.54 per diluted share on a pro forma basis for the first quarter of 2004. The Company has provided historical and pro forma information for the first quarter of 2004 to give effect to certain adjustments related to the Company’s initial public offering (“IPO”) and the related disposition of its Evergreen and Continental subsidiaries as if they occurred on January 1, 2004. The Company believes the pro forma information provides useful information to investors because it excludes items that were a result of the IPO and the disposition of Evergreen and Continental and are not reflective of its ongoing operations. A reconciliation of the pro forma information to the Company’s historical results is contained in the financial tables accompanying this release. The first quarter 2004 per diluted share information is based on the historical weighted average shares outstanding, which do not include the shares issued as part of the April 2004 IPO.
Net income for the first quarter of 2005 includes $793,000 ($515,000 net of taxes) in expenses related to the previously announced separation agreement with ProCentury’s former Chief Operating Officer.
The combined ratio was 95.9% for the first quarter of 2005 compared to 92.3% on a historical basis and 93.2% on a pro forma basis for the first quarter of 2004. The loss ratio was 62.0% for the first quarter of 2005 and the expense ratio was 33.9%. This compares with a loss ratio of 59.0% and expense ratio of 33.3% on a historical basis and a loss ratio of 59.0% and expense ratio of 34.2% on a pro forma basis for the first quarter of 2004.
Gross premiums written increased to $47.6 million for the first quarter of 2005, an increase of 11.2% from $42.8 million for the same period in 2004. Premiums earned were $41.5 million in the first quarter of 2005, up 29.5% compared with $32.1 million in the first quarter of 2004.
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |

Investment income for the first quarter of 2005 was $3.2 million, an increase of 60.8% from the investment income of $2.0 million reported for the first quarter of 2004.
A.M. Best Affirms Rating of Century Surety Company
ProCentury today announced that A.M. Best has affirmed the A- (Excellent) rating of its wholly owned subsidiary, Century Surety Company, and assigned the financial size category of VIII. This is an increase in the financial size category from VII to VIII. This rating is based on A.M. Best’s independent opinion of Century Surety’s balance sheet, operating performance, and business profile, all indications of the company’s ability to meet its obligations to policyholders.
Commenting on the rating and the increase in size category, Christopher Timm, President of Century Insurance Group said, “We are pleased that A.M. Best has reaffirmed our rating and has increased our financial size category. We anticipate that the change in size category will provide opportunities for us in new markets.”
Future Outlook
The following forward-looking statement is based on current expectations and actual results may differ materially as explained more completely in the note on forward-looking statements below.
The Company is reaffirming its expectations for gross written premiums for the year ended December 31, 2005 to grow between 10% and 15%.
Conference Call
ProCentury’s first quarter 2005 results will be discussed in more detail on Thursday, May 5 at 10:00 AM EDT.
To listen to the call, please dial 1-866-314-9606, approximately five minutes prior to the start of the call. For those who cannot listen to the live conference call, a replay will be available from approximately 1:00 p.m. EDT on May 5, 2005 until midnight on May 19, 2005. The access number for the replay is 1-800-642-1687 and the Conference ID code is 5768873. Additionally, the conference call will be broadcast live over the Internet and can be accessed by all interested parties on the Company’s website at http://www.procentury.com . Please access the website at least 15 minutes prior to the start of the call to register and to download any necessary audio software.
About ProCentury Corporation
ProCentury Corporation (Nasdaq: PROS) is a specialty property and casualty insurance holding company. Its subsidiary, Century Surety Company, underwrites property and casualty insurance
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |

for small- and mid-sized businesses. Century Surety Company primarily writes excess and surplus lines insurance and markets its products through a select network of general agents.
NOTE ON FORWARD-LOOKING STATEMENTS
Statements in this press release that are not historical statements, including those statements under the heading “Future Outlook,” are “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements are derived from information that we currently have and assumptions that we make and may be identified by words such as “believes,” “anticipates,” “expects,” “plans,” “should,” “estimates” and similar expressions. Our forward-looking statements are subject to risks, uncertainties and other factors that could cause actual results to differ materially from those stated or implied in our forward- looking statements, including but not limited to: 1) risks inherent in establishing loss and loss adjustment expense reserves; 2) uncertainties related to the ratings of our insurance subsidiary; 3) uncertainties related to governmental and regulatory policies; 4) uncertainties relating to the cyclical nature of our business; 5) changes in our relationships with, and the capacity of, our general agents; and 6) the risk that our reinsurers may not be able to fulfill their obligations to us. You are cautioned not to place undue reliance on forward-looking statements, which are made only as of the date of this press release. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. For additional disclosure regarding potential risks, please refer to documents we file with the Securities and Exchange Commission.
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |

PROCENTURY CORPORATION AND SUBSIDIARIES
Condensed Consolidated Statements of Operations
(Unaudited)
(dollars in thousands, except per share data)
| | | | | | | | |
| | Quarter Ended | | | Quarter Ended | |
| | March 31, 2005 | | | March 31, 2004 | |
Gross premiums written | | $ | 47,632 | | | | 42,836 | |
Net premiums written | | $ | 42,287 | | | | 36,644 | |
| | | | | | | | |
Premiums earned | | $ | 41,520 | | | | 32,059 | |
Net investment income | | | 3,159 | | | | 1,965 | |
Net realized investment (losses) gains | | | (59 | ) | | | 123 | |
| | | | | | |
Total revenues | | | 44,620 | | | | 34,147 | |
| | | | | | |
Losses and loss expenses | | | 25,727 | | | | 18,902 | |
Amortization of deferred policy acquisition costs | | | 10,220 | | | | 6,850 | |
Other operating expenses | | | 3,065 | | | | 3,580 | |
Severance expenses | | | 793 | | | | 250 | |
Interest expense | | | 417 | | | | 415 | |
| | | | | | |
Total expenses | | | 40,222 | | | | 29,997 | |
| | | | | | |
| | | | | | | | |
Income before income taxes | | | 4,398 | | | | 4,150 | |
Income tax expense | | | 1,319 | | | | 1,263 | |
| | | | | | |
Net income | | $ | 3,079 | | | | 2,887 | |
| | | | | | |
| | | | | | | | |
Net Income per share: | | | | | | | | |
Basic | | $ | 0.24 | | | | 0.58 | |
| | | | | | |
Diluted | | $ | 0.23 | | | | 0.58 | |
| | | | | | |
| | | | | | | | |
Weighted average of shares outstanding — basic | | | 13,046,339 | | | | 5,000,532 | |
| | | | | | |
| | | | | | | | |
Weighted average of shares outstanding — diluted | | | 13,129,546 | | | | 5,000,532 | |
| | | | | | |
| | | | | | | | |
Loss and loss expense ratio | | | 62.0 | % | | | 59.0 | % |
Expense ratio | | | 33.9 | | | | 33.3 | |
| | | | | | |
Combined ratio | | | 95.9 | % | | | 92.3 | % |
| | | | | | |
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |

PROCENTURY CORPORATION AND SUBSIDIARIES
Condensed Consolidated Statements of Operations
(Unaudited)
(dollars in thousands, except per share data)
| | | | | | | | | | | | |
| | Historical | | | | | | | Pro Forma | |
| | Quarter Ended | | | Pro Forma | | | Quarter Ended | |
| | March 31, 2004 | | | Adjustments | | | March 31, 2004 | |
Gross premiums written | | $ | 42,836 | | | | — | | | | 42,836 | |
Net premiums written | | $ | 36,644 | | | | — | | | | 36,644 | |
| | | | | | | | | | | | |
Premiums earned | | $ | 32,059 | | | | — | | | | 32,059 | |
Net investment income | | | 1,965 | | | | — | | | | 1,965 | |
Net realized investment gains | | | 123 | | | | — | | | | 123 | |
| | | | | | | | | |
Total revenues | | | 34,147 | | | | — | | | | 34,147 | |
| | | | | | | | | |
Losses and loss expenses | | | 18,902 | | | | — | | | | 18,902 | |
Amortization of deferred policy acquisition costs | | | 6,850 | | | | (655 | )(1) | | | 7,505 | |
Other operating expenses | | | 3,580 | | | | 105 | (2) | | | 3,475 | |
Severance expenses | | | 250 | | | | 250 | (3) | | | — | |
Interest expense | | | 415 | | | | — | | | | 415 | |
| | | | | | | | | |
Total expenses | | | 29,997 | | | | (300 | ) | | | 30,297 | |
| | | | | | | | | |
| | | | | | | | | | | | |
Income before income taxes | | | 4,150 | | | | 300 | | | | 3,850 | |
Income tax expense | | | 1,263 | | | | 105 | (4) | | | 1,158 | |
| | | | | | | | | |
Net income | | $ | 2,887 | | | | 195 | | | | 2,692 | |
| | | | | | | | | |
| | | | | | | | | | | | |
Net Income per share: | | | | | | | | | | | | |
Basic | | $ | 0.58 | | | | 0.04 | | | | 0.54 | |
| | | | | | | | | |
Diluted | | $ | 0.58 | | | | 0.04 | | | | 0.54 | |
| | | | | | | | | |
| | | | | | | | | | | | |
Weighted average of shares outstanding — basic | | | 5,000,532 | | | | 5,000,532 | | | | 5,000,532 | |
| | | | | | | | | |
| | | | | | | | | | | | |
Weighted average of shares outstanding — diluted | | | 5,000,532 | | | | 5,000,532 | | | | 5,000,532 | |
| | | | | | | | | |
| | | | | | | | | | | | |
Loss and loss expense ratio | | | 59.0 | % | | | | | | | 59.0 | % |
Expense ratio | | | 33.3 | | | | | | | | 34.2 | |
| | | | | | | | | |
Combined ratio | | | 92.3 | % | | | | | | | 93.2 | % |
| | | | | | | | | |
(1) | This adjustment relates to income received as a result of changes in deferred policy acquisition costs that occurred with the termination of the intercompany pooling agreement and the implementation of the loss portfolio transfers that occurred in relation to the disposition of Evergreen and Continental. |
|
(2) | This adjustment relates to expenses related to the IPO that could not be capitalized. |
|
(3) | This adjustment relates to severance expenses related to the disposition of Evergreen and Continental. |
|
(4) | These adjustments represent the tax effect of the pro forma adjustments described above. |
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |

PROCENTURY CORPORATION AND SUBSIDIARIES
Condensed Consolidated Balance Sheets
(Unaudited)
(dollars in thousands, except per share data)
| | | | | | | | |
| | March 31, 2005 | | | December 31, 2004 | |
Assets | | | | | | | | |
| | | | | | | | |
Investments | | $ | 314,868 | | | | 305,718 | |
Cash | | | 3,568 | | | | 6,681 | |
Premiums in course of collection, net | | | 14,823 | | | | 11,747 | |
Deferred policy acquisition costs | | | 17,506 | | | | 17,411 | |
Prepaid reinsurance premiums | | | 9,070 | | | | 9,382 | |
Reinsurance recoverable on paid and unpaid losses, net | | | 4,220 | | | | 3,897 | |
Receivable recoverable on unpaid losses, net | | | 31,555 | | | | 29,485 | |
Deferred federal income tax asset | | | 7,701 | | | | 5,442 | |
Other assets | | | 6,106 | | | | 5,164 | |
| | | | | | |
Total assets | | $ | 409,417 | | | | 394,927 | |
| | | | | | |
| | | | | | | | |
Liabilities and Shareholders’ Equity | | | | | | | | |
| | | | | | | | |
Loss and loss expense reserves | | $ | 165,736 | | | | 153,236 | |
Unearned premiums | | | 82,589 | | | | 82,135 | |
Long term debt | | | 25,000 | | | | 25,000 | |
Accrued expenses and other liabilities | | | 9,123 | | | | 9,051 | |
Collateral held | | | 9,825 | | | | 7,008 | |
Federal income taxes payable | | | 1,870 | | | | 3,260 | |
| | | | | | |
Total liabilities | | | 294,143 | | | | 279,690 | |
| | | | | | |
Shareholders’ equity: | | | | | | | | |
Common stock, without par value | | | — | | | | — | |
Additional paid-in capital | | | 100,139 | | | | 100,103 | |
Retained earnings | | | 18,541 | | | | 15,727 | |
Unearned share compensation | | | (1,091 | ) | | | (1,413 | ) |
Accumulated other comprehensive (loss) income, net of taxes | | | (2,315 | ) | | | 820 | |
| | | | | | |
Total shareholders’ equity | | | 115,274 | | | | 115,237 | |
| | | | | | |
Total liabilities and shareholders’ equity | | $ | 409,417 | | | | 394,927 | |
| | | | | | |
| | | | | | | | |
Book value per share | | $ | 8.73 | | | | 8.76 | |
| | | | | | |
| | | | | | | | |
Number of common shares outstanding | | | 13,211,019 | | | | 13,155,995 | |
| | | | | | |
Source: ProCentury
Contact: Scott Murray, Director of Investor Relations, 614-823-6296
| | |
www.ProCentury.com | | |
| | |
| | 465 Cleveland Avenue, Westerville, Ohio 43082 Phone: 614/895-2000 Fax: 614/895-2707 |