RLI CORP

If you and other residents at your mailing address own shares of common stock “in street name,” your broker or bank may have sent you a notice that your household will receive only one copy of this Proxy Statement, 2023 Annual Report to Shareholders and/or E-Proxy Notice. This practice, known as “householding,” is designed to reduce our printing and postage costs. If you reside at the same address as another shareholder of the Company and wish to receive a separate copy of the applicable materials, you may do so by sending your name, the name of your brokerage firm, and your account number to Broadridge, Householding Department, 51 Mercedes Way, Edgewood, New York 11717. This revocation of your consent to householding will be effective 30 days following its receipt. In any event, if you did not receive an individual copy of this Proxy Statement, 2023 Annual Report to Shareholders and/or E-Proxy Notice, or if you wish to receive individual copies of this Proxy Statement, 2023 Annual Report to Shareholders and/or E-Proxy Notice, we will send a copy to you promptly upon your written or oral request. Please contact our Assistant Corporate Secretary at the telephone number or address provided above. Shareholders who share the same address and currently receive multiple copies of the Proxy Statement, 2023 Annual Report to Shareholders and/or E-Proxy Notice who wish to receive only one copy in the future may contact their bank, broker or other holder of record, or our Assistant Corporate Secretary, Christina Dean, at the telephone number or address provided above.