NorthWestern Energy Group: Strengthening Community Commitment Ahead of February 2025 Investor Webinar

### NorthWestern Energy's Commitment to Community and Service

NorthWestern Energy, operating under its parent company NorthWestern Energy Group, Inc., continues to strengthen its commitment to community and service as it prepares for an upcoming investor webinar. Scheduled for February 13, 2025, this event aims to review the company’s financial results for the year ending December 31, 2024. The webinar reflects NorthWestern's dedication to transparency and engagement with its stakeholders, providing a platform for discussion about the company's performance and strategic initiatives. This approach aligns with NorthWestern’s mission to enhance the quality of life across the regions it serves by offering innovative and reliable energy solutions.

The company serves approximately 775,300 customers across Montana, South Dakota, Nebraska, and Yellowstone National Park, highlighting its expansive operational footprint. NorthWestern Energy has a strong historical presence in South Dakota and Nebraska since 1923 and in Montana since 2002. This longevity underscores the company’s dedication to providing essential energy infrastructure and services. Through its subsidiaries—NorthWestern Corporation for Montana and Yellowstone National Park, and NorthWestern Energy Public Service Corporation for South Dakota and Nebraska—the company emphasizes its focus on building long-term partnerships with customers and communities, ensuring that energy delivery is both reliable and cost-effective.

NorthWestern Energy prides itself on a workforce that adapts to changing needs while remaining committed to safety and reliability. The company’s mission prioritizes economic growth and community empowerment, recognizing that its operations play a crucial role in fostering sustainable development. As NorthWestern Energy prepares for the upcoming webinar, it seeks to reinforce its commitment to stakeholders while continuing to innovate in energy delivery, ultimately working towards a brighter and more sustainable future for the communities it serves.

In addition to the upcoming webinar, NorthWestern Energy remains focused on enhancing customer engagement and satisfaction. The company encourages interested participants to register for the webinar early to ensure they can take part in the discussions surrounding its financial results and future initiatives. An archived replay will be available for those who cannot attend live, further demonstrating NorthWestern's commitment to accessibility and transparency.

As the energy landscape evolves, NorthWestern Energy continues to adapt its strategies to meet the needs of its diverse customer base. By focusing on delivering safe, reliable, and innovative energy solutions, the company positions itself as a vital partner in the ongoing development of the regions it serves, fostering economic growth and enhancing the quality of life for its customers.