# EDGAR Filing Document

**Accession Number:** 0001130891
**File Stem:** 0001004155-25-000014
**Filing Date:** 2025-9
**Character Count:** 5313
**Document Hash:** 1fa833cf257847e6e1d1640f97c0f88a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001004155-25-000014.hdr.sgml**: 20250903

**ACCESSION NUMBER**: 0001004155-25-000014

**CONFORMED SUBMISSION TYPE**: FWP

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250903

**DATE AS OF CHANGE**: 20250903

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHERN CO GAS CAPITAL CORP
- **CENTRAL INDEX KEY:** 0001130891
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 880472393
- **STATE OF INCORPORATION:** AL
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 333-285115-01
- **FILM NUMBER:** 251290116

**BUSINESS ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045065000

**MAIL ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SOUTHERN Co CAPITAL Corp
- **DATE OF NAME CHANGE:** 20160809

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AGL CAPITAL CORP
- **DATE OF NAME CHANGE:** 20001228
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHERN CO GAS
- **CENTRAL INDEX KEY:** 0001004155
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 582210952
- **STATE OF INCORPORATION:** GA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** FWP

**BUSINESS ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045065000

**MAIL ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SOUTHERN Co GAS
- **DATE OF NAME CHANGE:** 20160711

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AGL RESOURCES INC
- **DATE OF NAME CHANGE:** 19951129

**Filed Pursuant to Rule 433**

**Registration Nos. 333-285115**

**and 333-285115-01**

**September 3, 2025**

**PRICING TERM SHEET**

**(To Preliminary Prospectus Supplement dated September 3, 2025)**

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| | |
|:---|:---|
| Issuer: | Southern Company Gas Capital Corporation |
| Guarantor: | Southern Company Gas |
| Security: | Series 2025B 5.10% Senior Notes due September 15, 2035 |
| Expected Ratings:\* | Baa1 (Stable) / A- (Stable) / BBB+ (Stable) (Moody's/<br>Standard & Poor's/Fitch) |
| Size: | $425000000 |
| Initial Public Offering Price: | 99.743% of the principal amount |
| Maturity Date: | September 15, 2035 |
| Benchmark Treasury: | 4.250% due August 15, 2035 |
| Benchmark Treasury Yield: | 4.203% |
| Spread to Benchmark Treasury: | +93 basis points |
| Re-offer Yield: | 5.133% |
| Optional Redemption: |  |
| &nbsp;&nbsp;&nbsp;Make-Whole Call: | Prior to March 15, 2035 at T+15 basis points |
| &nbsp;&nbsp;&nbsp;Par Call: | On or after March 15, 2035 at 100% |
| Coupon: | 5.10% |
| Interest Payment Dates: | March 15 and September 15 of each year, beginning March 15, 2026 |
| Format: | SEC Registered |
| Denominations: | $2,000 and integral multiples of $1,000 in excess thereof |
| CUSIP/ISIN: | 8426EP AK4/US8426EPAK42 |
| Trade Date: | September 3, 2025 |
| Expected Settlement Date: | September 8, 2025 (T+3) |
| Joint Book-Running Managers: | BMO Capital Markets Corp.<br>MUFG Securities Americas Inc.<br>Santander US Capital Markets LLC<br>U.S. Bancorp Investments, Inc. |
| Co-Managers: | BBVA Securities Inc.<br>BNY Mellon Capital Markets, LLC<br>CIBC World Markets Corp.<br>Huntington Securities, Inc.<br>Intesa Sanpaolo IMI Securities Corp.<br>TD Securities (USA) LLC<br>MFR Securities, Inc.<br>Siebert Williams Shank & Co., LLC |
| Concurrent Offering: | $425,000,000 Series 2025A 4.05% Senior Notes due September 15, 2028, expected to be issued on September 8, 2025. The closing of the offering of the Series 2025B Senior Notes is not contingent on the closing of the concurrent offering. |

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\* Note: A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

Southern Company Gas and Southern Company Gas Capital Corporation have filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus in that registration statement and other documents Southern Company Gas and Southern Company Gas Capital Corporation have filed with the SEC for more complete information about Southern Company Gas, Southern Company Gas Capital Corporation and this offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, Southern Company Gas, Southern Company Gas Capital Corporation, any underwriter or any dealer participating in this offering will arrange to send you the prospectus if you request it by calling Southern Company Gas collect at 1-404-506-5579, BMO Capital Markets Corp. toll free at 1-888-200-0266, MUFG Securities Americas Inc. toll free at

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1-877-649-6848, Santander US Capital Markets LLC toll free at 1-855-403-3636 or U.S. Bancorp Investments, Inc. toll free at 1-877-558-2607.

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