Chairman’s Message

Dear Fellow Stockholders,

2025 was an excellent and transformative year for

Southern Company. We delivered strong financial

results, strengthened our energy portfolio and continued

advancing cutting-edge innovation. Across our service

territory, we saw some of the most significant energy

demand growth in our history — from data centers,

advanced manufacturing and continued residential

growth. Our teams successfully met the moment.

Most importantly, at every turn, we demonstrated our

commitment to putting customers first and supporting

the communities we are privileged to serve.

Keeping Customers at the Center

of All We Do

For more than 125 years, customers have depended on

Southern Company to power their communities, their

homes and their businesses. And while our company

has evolved, our number one priority has remained the

same: ensuring customers receive clean, safe, reliable

and affordable power. Whether it is helping their homes

stay warm through the winter or cool in the summer, to

the simple flip of the light switch or the family dinner

coming together, our team is always there to serve the

customer first.

With this customer-focused mindset, in 2025, we

advanced plans to responsibly serve the extraordinary,

long-term growth we’re projecting to help ensure the

benefits of growth are shared by everyone. As we work

to add new, critical infrastructure, we have taken concrete

steps to maintain predictability, deliver rate stability and

drive long-term savings for our customers.

Investing for the Future

Southern Company’s grid is engineered to support

significant growth and adapt to a rapidly evolving

landscape. To prepare for what’s ahead, we plan to invest

more than $80 billion over the next five years to continue

strengthening the grid, expanding generation and

deploying advanced technologies that make our system

smarter and more resilient.

Across our system, we are modernizing infrastructure

and leveraging innovation — from advanced forecasting

and analytics to next-generation grid technologies. These

investments are essential to supporting economic growth,

maintaining reliability during peak demand and delivering

long-term value for our customers and stockholders.

Reliability When It Matters Most

In 2025, our ability to offer reliable service was repeatedly

put to the test, and we delivered time and time again. In

January 2025, Winter Storm Enzo brought record-breaking

snowfall and near-record energy demand across our

footprint. Despite hazardous conditions, our teams were

there to support our communities — restoring power for

more than 115,000 customers and safely meeting record

natural gas demand across multiple states. These efforts

earned national recognition, but more importantly, they

reflect who we are: a company trusted to deliver when it

matters most.

Delivering on Our Financial

Commitments

For the eleventh year in a row, we delivered adjusted

earnings performance at the top of or above our annual

guidance range. With the significant capital investments

we are making and the large load pipeline we have

clear visibility into, we see incredible opportunities for

growth ahead.

Our Commitment in Action

Our growth is inseparable from the growth of the

communities we serve, and our commitment to these

communities goes well beyond the energy solutions we

provide. Through philanthropic investments, employee

volunteer efforts and economic development initiatives,

our operating companies have been helping hometowns

across our service footprint grow and prosper.

In this watershed moment for the energy industry,

Southern Company is leading with purpose — delivering

energy that is reliable and resilient, while investing in

the infrastructure and technologies that will power

communities for generations to come.

Historic demand requires historic leadership. Our

foundation is strong, and our almost 30,000 teammates

are committed. Together, we are building the utility of the

future, driven by innovation and grounded in what’s right

for our customers.

Thank you for your continued confidence in Southern

Company. It is a privilege to serve you.

Sincerely,

Christopher C. Womack

Chairman, President and Chief Executive Officer

March 24, 2026