S-3 S-3 EX-FILING FEES 0000066904 MISSISSIPPI POWER CO N/A N/A 0.0001381 0.0001381 0.0001381 0000066904 2026-07-28 2026-07-28 0000066904 1 2026-07-28 2026-07-28 0000066904 2 2026-07-28 2026-07-28 0000066904 3 2026-07-28 2026-07-28 0000066904 4 2026-07-28 2026-07-28 0000066904 5 2026-07-28 2026-07-28 0000066904 6 2026-07-28 2026-07-28 0000066904 7 2026-07-28 2026-07-28 0000066904 8 2026-07-28 2026-07-28 iso4217:USD xbrli:pure xbrli:shares

Calculation of Filing Fee Tables

S-3

MISSISSIPPI POWER CO

Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable

Security Type

Security Class Title

Fee Calculation or Carry Forward Rule

Amount Registered

Proposed Maximum Offering Price Per Unit

Maximum Aggregate Offering Price

Fee Rate

Amount of Registration Fee

Carry Forward Form Type

Carry Forward File Number

Carry Forward Initial Effective Date

Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward

Newly Registered Securities
Debt Mississippi Power Company Senior Notes 457(o)
Debt Mississippi Power Company Junior Subordinated Notes 457(o)
Equity Mississippi Power Company Preferred Stock 457(o)
Fees to be Paid 1 Unallocated (Universal) Shelf 457(o) $ 74,830,000.00 0.0001381 $ 10,334.02
Fees Previously Paid
Carry Forward Securities
Carry Forward Securities Debt Mississippi Power Company Senior Notes 415(a)(6) S-3 333-273697 08/17/2023
Carry Forward Securities Debt Mississippi Power Company Junior Subordinated Notes 415(a)(6) S-3 333-273697 08/17/2023
Carry Forward Securities Equity Mississippi Power Company Preferred Stock 415(a)(6) S-3 333-273697 08/17/2023
Carry Forward Securities 2 Unallocated (Universal) Shelf 415(a)(6) $ 925,170,000.00 S-3 333-273697 08/17/2023 $ 106,534.45

Total Offering Amounts:

$ 1,000,000,000.00

$ 10,334.02

Total Fees Previously Paid:

$ 0.00

Total Fee Offsets:

$ 0.00

Net Fee Due:

$ 10,334.02

Offering Note

1

The Registration Statement to which this Calculation of Filing Fee Table is attached (the "Registration Statement") covers such presently indeterminate principal amount of Senior Notes and Junior Subordinated Notes and such presently indeterminate number of shares of Preferred Stock of Mississippi Power Company (together, the "Securities"), with an aggregate initial offering price not to exceed $1,000,000,000. Pursuant to Rule 457(o) under the Securities Act of 1933, as amended (the "Securities Act"), which permits the registration fee to be calculated on the basis of the maximum offering price of all the securities listed, this Calculation of Filing Fee Table does not specify by each class information as to the amount to be registered, proposed maximum offering price per unit or proposed maximum aggregate offering price.

2

Mississippi Power Company previously filed a Registration Statement on Form S-3 (File No. 333-273697) (the "Prior Registration Statement"), which registered an unallocated aggregate offering price of $1,000,000,000 of Securities, $925,170,000 of which remain unsold (the "Unsold Securities"). Pursuant to Rule 415(a)(6) under the Securities Act, this Registration Statement includes the Unsold Securities. Of the Unsold Securities, (i) $121,535,000 were originally registered on the Prior Registration Statement, with an associated filing fee of $13,393.21, and (ii) $803,634,500 were initially registered on the Registration Statement on Form S-3 (File No. 333-219651) with an associated filing fee of $93,141.24. Mississippi Power Company is continuing to apply the aggregate filing fee of $106,534.45 previously paid in connection with the Unsold Securities to the Unsold Securities. The net filing fee due of $10,334.02 relates to the $74,830,000 aggregate offering price of newly-registered Securities. Pursuant to Rule 415(a)(6), the offering of securities under the Prior Registration Statement will be deemed terminated as of the date of effectiveness of the Registration Statement.

Table 2: Fee Offset Claims and Sources ☑Not Applicable
Registrant or Filer Name Form or Filing Type File Number Initial Filing Date Filing Date Fee Offset Claimed Security Type Associated with Fee Offset Claimed Security Title Associated with Fee Offset Claimed Unsold Securities Associated with Fee Offset Claimed Unsold Aggregate Offering Amount Associated with Fee Offset Claimed Fee Paid with Fee Offset Source
Rules 457(b) and 0-11(a)(2)
Fee Offset Claims
Fee Offset Sources
Rule 457(p)
Fee Offset Claims
Fee Offset Sources
Table 3: Combined Prospectuses ☑Not Applicable

Security Type

Security Class Title

Amount of Securities Previously Registered

Maximum Aggregate Offering Price of Securities Previously Registered

Form Type

File Number

Initial Effective Date