Northern Ireland’s requirement for Balancing Gas Services (Balancing Gas Sell and Balancing Gas Buy) is being tendered by Premier Transmission for an initial period from 1st October 2026 until 30th September 2027 with the possibility of extension to 30th September 2029 on behalf of GNI (UK), Premier Transmission Limited, Belfast Gas Transmission Limited & West Transmission Limited (together the “NI Network Operators”). Further details on the scope and requirements can be found in the tender documents. – Lot nr.: 1 Primary Balancing Buy Please see tender documents for further information on each lot. Duration contract start date : 30/09/2026 11:00:00 PM Duration contract end date : 30/09/2027 10:59:59 PM Criteria definitions: Quality: 10 (Quality) Price: 90 (Price) – Lot nr.: 2 Secondary Balancing Buy Please see tender documents for further information. Duration contract start date : 30/09/2026 11:00:00 PM Duration contract end date : 30/09/2027 10:59:59 PM Criteria definitions: Quality: 10 (Quality) Price: 90 (Price) – Lot nr.: 3 Balancing Sell Further information is available in the tender documents. Duration contract start date : 30/09/2026 11:00:00 PM Duration contract end date : 30/09/2027 10:59:59 PM Criteria definitions: Quality: 10 (Quality) Price: 90 (Price)