SEPLAT ENERGY PLC ("SEPLAT ENERGY" OR THE "COMPANY")

ANNOUNCEMENT OF CURRENCY EXCHANGE RATE FOR Q1 2026 INTERIM DIVIDEND

Lagos and London, 5 June 2026 - Seplat Energy Plc ("Seplat Energy" or the "Company") today announces the applicable exchange rate for determining the Naira equivalent of the Q1 2026 interim dividend and special dividend payable to shareholders who have elected to receive their dividend in Naira (₦).

In accordance with the Company's dividend payment procedures, the exchange rate applied is the Nigerian Foreign Exchange Market (NFEM) rate published by the Central Bank of Nigeria on 4 June 2026.

Applicable Exchange Rate:

US$1.00 = ₦ 1,358.75

The Naira equivalent of the Q1 2026 interim dividend and special dividend will be calculated using the above exchange rate.

Shareholders should refer to the Company's announcement on April 30, 2026, for the definition of default currency on the company website at https://www.seplatenergy.com/investors/regulatory-announcements/.  

-  ENDS -

Eleanor Adaralegbe

Chief Financial Officer

FOR: SEPLAT ENERGY PLC.

Enquiries:

Notes to editors

Seplat Energy Plc is Nigeria's leading indigenous energy company. It is listed on the Premium Board of the Nigerian Exchange Limited (NGX: SEPLAT) and the Main Market of the London Stock Exchange (LSE: SEPL). Through our strategy to build a sustainable business and deliver energy transition, we are transforming lives by delivering affordable, reliable and sustainable energy that drives social and economic prosperity.

Seplat Energy's portfolio consists of eleven (11) PMLs, seventeen (17) PPLs and five (5) OMLs in onshore and shallow water locations in the prolific Niger Delta region of Nigeria, which we operate with partners including the Nigerian Government and other producers. Furthermore, we have an operated interest in three export terminals including; the Qua Iboe Export Terminal, Yoho FSO, and Bonny River Terminal (BRT), and operate two large offshore NGL recovery plants at Oso and EAP.

We operate three (3) gas processing plants onshore, at Oben and Sapele on our Western Assets and the 300 MMscfd ANOH Gas Processing Plant on our Eastern Assets, an integrated joint venture with NGIC. Combined, these gas facilities augment Seplat Energy's position as a leading supplier of natural gas to the domestic power generation market.

For further information please refer to our website, http://seplatenergy.com/