RLI CORP

The Company has adopted a Code of Conduct, which is designed to help Directors, officers, and employees maintain ethical behavior and resolve ethical issues in an increasingly complex global business environment. The Code of Conduct applies to all Directors, officers, and employees, including specifically the Chief Executive Officer, Chief Financial Officer, Controller, Chief Operating Officer, Chief Legal Officer, and any other employee with any responsibility for the preparation and filing of

RLI Corp. 2026 Proxy Statement**|** 21

documents with the SEC. The Code of Conduct covers topics including, but not limited to, ethical behavior, conflicts of interest, corporate opportunities, confidentiality of information, fair dealing, protection and proper use of Company assets, and compliance with laws and regulations. The Company conducts an annual compliance acknowledgement completed by all Directors, officers, and employees to ensure compliance with the Code of Conduct as well as other Company policies. A copy of our Code of Conduct is available at the Company’s website under the Investors section at www.rlicorp.com. Any amendments to the Code of Conduct or waiver that applies to a Director or executive officer will be posted on our website.