Company: NEWEN
Filing Date: 2025-11-06
Form Type: 6-K
Source: 0001654954-25-012622
Chunk: 36

Company: NATIONAL GRID PLC
Filing Date: 2025-11-06
Form: 6-K
Chunk 36
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 to various litigation, claims and investigations, including Ofgem’s investigation into the North Hyde substation incident. These investigations are ongoing. In the case of the North Hyde incident, based on the available information, we consider that there is no present obligation which could ultimately lead to a cash outflow, following the outcome of the investigation. The potential maximum penalty for a licence breach following an Ofgem investigation is 10% of turnover. We continue to monitor this position and engage with ongoing investigations. We do not expect the ultimate resolution of any other proceedings to have a material adverse effect on our results of operations, cash flows or financial position.

#### 14. Exchange rates
The consolidated results are affected by the exchange rates used to translate the results of our US operations and US dollar transactions. The US dollar to pound sterling exchange rates used were:

| 30 September                        | 2025 | 2024 | Year ended 31 March 2025 |
|:------------------------------------|-----:|-----:|-------------------------:|
| Closing rate applied at period end  | 1.34 | 1.34 |                     1.29 |
| Average rate applied for the period | 1.35 | 1.30 |                     1.27 |

#### 15. Related party transactions
Related party transactions in the six months ended 30 September 2025 were substantially the same in nature to those disclosed in note 31 of the Annual Report and Accounts for the year ended 31 March 2025. There were no other related party transactions in the period that have materially affected the financial position or performance of the Group.

#### 16. Post balance sheet events
In the period between 1 October 2025 and 5 November 2025, there have been no significant post balance sheet events.

#### Principal risks and uncertainties
When preparing the half year financial information the risks as reported in the Annual Report and Accounts for the year ended 31 March 2025 (Group Principal Risks on pages 35–41 and inherent risks on pages 262–268) were reviewed to ensure that the disclosures remained appropriate and adequate. Below is a summary of our key risks as at 30 September 2025:

#### People risks
▪

There is a risk that we do not have, across our workforce and within our leadership, the capability or capacity necessary to deliver on existing or future commitments because of ineffective planning for future people needs, insufficient development of people and failure to attract and retain people in a competitive