SOUTHWEST GAS CORP

Employees are critical to our success. Their talent and dedication are what allow us to provide safe and reliable service to customers and explore new opportunities that align with our strategies, while carrying out organizational core values related to safety, quality, stewardship, integrity, relationships, and sustainability, among others. The Board oversees matters relating to our vision, values, and culture where employee health and safety; the employee experience; and human and workplace rights are priorities. The Board receives regular reports from management and subject matter experts in these areas, and in turn provides guidance on current and future initiatives. The Board also assists management in integrating responsibility and sustainability into strategic activities to create long-term customer and shareholder value.

The Company and the Board are committed to a culture of continuous improvement in operations and efficiency, and with respect to the safety of our employees and the communities we serve every day. Employees and contract workers receive initial safety orientation training to learn practices, procedures, and policies established by our businesses. New and recurring safety training occurs at regular intervals thereafter. Frontline safety strategies, developed with executive leadership, contribute to the improvement of our safety management systems. Safety metrics also form part of incentive compensation programs for leaders of the Company’s business segments, reinforcing our top priority to safeguard our communities, our employees, and our assets. At Southwest Gas, such metrics include Damages per 1,000 Tickets and Incident Response Time, which are widely used in our industry. Additional behavioral-based programs and extensive employee training initiatives are also in place to promote safe work.

At December 31, 2025, Southwest Gas had 2,453 regular full-time equivalent employees. Southwest Gas believes that a skilled, highly trained workforce is a key to success in the utility industry, and is a driver of Southwest Gas’ safety performance and high customer satisfaction ratings. Southwest Gas has a positive reputation as an employer and strong relationships with its employees. The compensation, benefits, and working conditions of Southwest Gas’ employees are comparable to those generally found in the utility industry. Employee engagement surveys are periodically conducted to better understand employee perspectives and guide continuous improvement in workplace practices, fostering an environment where employees feel valued and supported. Flexible working arrangements are available to employees, which supports work-life balance. A stable workforce has been important to knowledge transfer and succession processes, with the average tenure of Southwest Gas employees being approximately 11 years. In 2024, certain employees from our southern California division voted in the United Steelworkers Union to represent them. Contract negotiations to establish a CBA are ongoing. We are not aware of any organizing activities in our other locations.

Germane to attracting and retaining employees are our compensation and benefits programs, which are regularly reviewed by management and the Compensation Committee of the Board, as applicable. For employees hired on or before December 31, 2021, Southwest Gas offers an employee pension and employer matching contributions to the employee defined contribution plan. Employees hired on or after January 1, 2022, do not participate in the employee pension plan, but receive non-elective employer contributions and increased employer matching contributions to the employee defined contribution plan. The health and wellness of our workforce are supported by group insurance programs, incentive programs in support of total health, and related employee programs. We continue to review and evaluate potential enhancements to our total rewards program to ensure market competitiveness and employee satisfaction. Southwest Gas also offers a tuition assistance program and encourages employees to leverage this program to remain current in their role or to acquire new skills for career advancement. Regular succession planning helps ensure that talent is identified and prospective leaders are developed in order to build their skills and be prepared for future roles.

We commit to creating a safe and respectful workplace and strive to have a workforce that reflects the communities we serve and that benefits from diverse backgrounds, cultures, skills, experiences and perspectives. Our belief is that adherence to these principles forms the genesis of a workforce that is capable and inclusive. Southwest Gas supports several programs, including employee resource groups that are open to all employees, educational outreach programs, and other initiatives designed to attract and retain a qualified and engaged workforce. Through these and other efforts, we are committed to the success of our employees and their development while ensuring opportunity for everyone.