We are focused on energy management, operational efficiency and disciplined emissions tracking across our infrastructure portfolio. In 2025, we achieved our previously announced goal to be carbon neutral in Scope 1 and 2 emissions for our consolidated business through a combination of operational reductions¹, renewable energy procurement, and carbon offsets² in accordance with with our methodology and reporting boundary. We also met our commitment to match 100% of our annual electricity consumption with renewable energy.

Looking ahead, we plan to continue pursuing operational efficiencies while targeting to maintain full coverage of Scope 1 and 2 emissions through renewable energy procurement and carbon offsets through 2027. Beyond this period, we plan to reassess future targets based on a representative emissions baseline for our ongoing operations.

Our progress.

Sourcing renewable energy to match our consumption⁵

Matching our annual electricity consumption with US-based renewable energy through a mix of retail agreements, community solar and renewable energy certificates supports efficient energy sourcing while contributing to broader emissions reduction efforts.

^{5 Renewable energy percentages were calculated by dividing the MWh of renewable energy contracted each year by the respective total annual electricity consumption, as included in the Environmental Data Tables.}

As we transition to a pure-play US tower business following the completion of our previously announced sale of our fiber and small cell businesses in May 2026, we are establishing a representative baseline for our go-forward operations. Accordingly, we calculated our 2025 energy consumption and emissions across our operating footprint, with results presented on both a consolidated basis and for continuing operations. Consolidated results include all assets under our operational control during 2025, including the small cell and fiber assets later divested in May 2026, while continuing operations exclude those assets and reflect the business as if the sale had occurred prior to the reporting period.

Scope 3

In 2025, we continued to advance our Scope 3 emissions disclosure, building on an established inventory and reporting on categories relevant to our business. To support transparency during our transition to a pure-play, US-focused tower company, we present Scope 3 emissions on both a consolidated and continuing operations basis. We continue to engage with customers and suppliers to align priorities and explore opportunities to reduce emissions across our value chain.

Our Scope 3 emissions are primarily driven by:

• Category 13, Downstream leased assets: Emissions from our customers’ energy use on our infrastructure assets, primarily related to electricity use for telecommunications equipment and HVAC units at tower sites
• Category 2, Capital goods: Emissions from construction-related spend, largely associated with fiber installation
• Category 1, Purchased goods and services: Emissions from the goods and services purchased to support our operations

The remainder of our Scope 3 emissions inventory is composed of categories that we believe are individually less material to our overall footprint, including fuel- and energy-related activities, upstream transportation and distribution, waste generated in operations, business travel and teammate commuting. Refer to the Environmental Data Tables for our comprehensive emissions inventory.

Exploring downstream emissions on our tower sites.¹³

At our tower sites, we generally own the tower and lighting beacons and manage site maintenance, while our customers generally own their communications equipment, tower cabling, ground shelter with HVAC and IT equipment and backup generators.

We work closely with our customers to connect communities through our shared infrastructure portfolio. By aligning on sustainability priorities and supporting progress toward lower-carbon operations, we help advance our customers' goals while reinforcing the sustainability benefits of shared infrastructure.

We’re taking steps to conserve water and reduce waste generated across our business. Our water use and waste generation stem almost exclusively from our office operations. Our current water efficiency initiatives include selecting drought-tolerant native species for landscaping, using zoned and timed sensors to reduce water use, using reclaimed water for landscape irrigation and installing energy-efficient appliances and fixtures in connection with our new office buildouts and renovations.

Many of our teammates work in a hybrid or fully remote capacity. As such, we are reporting waste generated both in Crown Castle offices and by teammates while working from home. Our current waste reduction initiatives across offices include using recyclable materials, digitizing operations and donating old materials to reduce lifecycle impacts.

Our seasonal bird program.

Occasionally, protected bird species select our towers as nesting sites. When this happens, processes are activated to track and document these sites. To facilitate regulatory compliance, we developed a state-specific bird guide that includes nesting seasons by species, making it easier for all parties on our sites to follow the guidelines. We have procedures in place to protect identified nests, including limiting on-site access and nest relocation.