Sharesave

• If the National Grid share price falls below 728.10p, your request to buy shares at the Option Price of 728.10p will not be actioned.
• If you select choice one, your shares will be held electronically in the Corporate Sponsored Nominee Service. You can then sell them at any time you wish, using a real-time dealing service (telephone and online) through Equiniti Financial Services Limited, subject to any restrictions under the National Grid Share Dealing Policy. Alternatively, you can either transfer your shares out of the Corporate Sponsored Nominee Service into a share custody account that you hold with your own bank or stockbroker, or receive a share certificate.
• You cannot set a share price at which you sell your shares if electing choice two. However, your shares will only be sold if a sale price of more than the Option Price of 728.10p can be achieved.
• Charges apply when you sell shares under choice two and are applied automatically when your shares are sold. The fee for using the Equiniti Financial Services Limited Share Sale Service is shown on the Terms and Conditions for the Share Sale Service.
• The Share Sale Service and EQi Flexible Stocks and Shares ISA facilities are provided by Equiniti Financial Services Limited and can be applied for until 6.00pm on 30 September 2026.
• ISA custody fees also apply, these are detailed in the EQi ISA Maturity Option.
• You can donate to charity any money left in your savings account that cannot be used to buy a whole share.
• Rates shown were current at the time of publication of this document, however, these are subject to change. To ensure that you are aware of the current applicable rates prior to dealing, please ensure that you have read the latest Terms and Conditions.

• No Income Tax or National Insurance Contribution (NIC) is payable when you buy shares at the Option Price.
• If you sell your shares, you may be liable to pay Capital Gains Tax if your total gain for the tax year exceeds the Capital Gains Tax exemption currently set at £3,000 in 2025/26 and 2026/27 tax year.
• If you believe you may exceed the Capital Gains Tax exemption allowance you may wish to transfer some/all of your shares to an ISA, where you are exempt from this tax.
• If you invest your money elsewhere, any interest you earn may be subject to Income Tax.
• For more information on CGT please visit the Government's website Capital Gains Tax.

• If you choose to take a repayment you can still buy shares at the Option Price of 728.10p within six months of your Maturity Date. Please call the Equiniti Employee Helpline on +44 (0)371 384 2014 for more information on what to do. Lines are open 8.30am to 5.30pm (UK time), Monday to Friday (excluding public holidays in England and Wales).

Choice 1

Buy National Grid shares and keep them, free of charge, in the CSN. Shares in the CSN can be manged electronically, including transferring them to an ISA or alternative broker account, transferring them to your spouse/ civil partner or choosing to sell them. Note at the point the shares are sold capital gains tax may be applicable.

For more information on CGT please visit the Government's website Capital Gains Tax.

Choice 2

Buy National Grid plc shares and sell all of them on the allotment/processed date, please refer to the Key dates for more information.

You will receive the cash from the sale of shares, minus any commission directly into your bank account. There is a 0.35% dealing fee with a minimum fee of £25 for this service*.

After receipt of your instruction and before execution, the share price may go down or up. Your shares will normally be sold on the relevant allotment date at the price achievable when the trade is placed in the market as set out in the Terms and Conditions. It is not possible to set a price limit when selecting this choice.

Sale instructions using the Equiniti Financial Services Limited Share Sale Service are processed on a weekly basis.

Capital Gains Tax (CGT) might be applicable when the current share price is higher than the discounted share price of your maturing scheme and any gain is subject to tax. CGT means that you will be taxed on any profit or gain you make that is above the tax free allowance limit, which is £3,000 in tax years 2025/26 and 2026/27.

For more information on CGT please visit the Government's website Capital Gains Tax.

*Please note that the rates are subject to change. Kindly refer to the Terms and Conditions to confirm the current rates.

Choice 3

Buy National Grid plc shares and transfer them into an EQi Flexible ISA. For more information visit https://eqi.co.uk/info/isa/benefits.

A Stocks and Shares Individual Savings Account (ISA) allows you to shelter income, and/or capital gains made through savings and investments, from tax every tax year. Each year the government sets a limit on the amount you can save in an ISA – called an ISA allowance. For the 2025/2026 and 2026/2027 tax years, the allowance is £20,000. You can subscribe into more than one Cash ISA, or Stocks and Shares ISA or any combination of permitted ISAs in the same tax year, up to the overall allowance.

For more information on the tax benefits of an ISA visit Tax advantages of a flexible Stocks and Shares ISA | EQi.

Please note there is a fee for this service. Full details of the pricing and fees visit https://eqi.co.uk/info/isa/pricing.

Choice 4

Do not buy National Grid Shares and have your savings returned by calling the Equiniti Employee Helpline.

• If the National Grid share price falls below 627.80p, your request to buy shares at the Option Price of 627.80p will not be actioned.
• If you select choice one, your shares will be held electronically in the Corporate Sponsored Nominee Service. You can then sell them at any time you wish, using a real-time dealing service (telephone and online) through Equiniti Financial Services Limited, subject to any restrictions under the National Grid Share Dealing Policy. Alternatively, you can either transfer your shares out of the Corporate Sponsored Nominee Service into a share custody account that you hold with your own bank or stockbroker, or receive a share certificate.
• You cannot set a share price at which you sell your shares if electing choice two. However, your shares will only be sold if a sale price of more than the Option Price of 627.80p can be achieved.
• Charges apply when you sell shares under choice two and are applied automatically when your shares are sold. The fee for using the Equiniti Financial Services Limited Share Sale Service is shown on the Terms and Conditions for the Share Sale Service.
• The Share Sale Service and EQi Flexible Stocks and Shares ISA facilities are provided by Equiniti Financial Services Limited and can be applied for until 6.00pm on 30 September 2026.
• ISA custody fees also apply, these are detailed in the EQi ISA Maturity Option.
• You can donate to charity any money left in your savings account that cannot be used to buy a whole share.
• Rates shown were current at the time of publication of this document, however, these are subject to change. To ensure that you are aware of the current applicable rates prior to dealing, please ensure that you have read the latest Terms and Conditions.

• No Income Tax or National Insurance Contribution (NIC) is payable when you buy shares at the Option Price.
• If you sell your shares, you may be liable to pay Capital Gains Tax if your total gain for the tax year exceeds the Capital Gains Tax exemption currently set at £3,000 for the 2025/26 and 2026/27 tax year.
• If you believe you may exceed the Capital Gains Tax exemption allowance you may wish to transfer some/all of your shares to an ISA, where you are exempt from this tax.
• If you invest your money elsewhere, any interest you earn may be subject to Income Tax.
• For more information on CGT please visit the Government's website Capital Gains Tax.

• If you choose to take a repayment you can still buy shares at the Option Price of 627.80p within six months of your Maturity Date. Please call the Equiniti Employee Helpline on +44 (0)371 384 2014 for more information on what to do. Lines are open 8.30am to 5.30pm (UK time), Monday to Friday (excluding public holidays in England and Wales).

Choice 1

Buy National Grid shares and keep them, free of charge, in the CSN. Shares in the CSN can be manged electronically, including transferring them to an ISA or alternative broker account, transferring them to your spouse/ civil partner or choosing to sell them. Note at the point the shares are sold capital gains tax may be applicable.

For more information on CGT please visit the Government's website Capital Gains Tax.

Choice 2

Buy National Grid plc shares and sell all of them on the allotment/processed date, please refer to the Key dates for more information.

You will receive the cash from the sale of shares, minus any commission directly into your bank account. There is a 0.35% dealing fee with a minimum fee of £25 for this service*.

After receipt of your instruction and before execution, the share price may go down or up. Your shares will normally be sold on the relevant allotment date at the price achievable when the trade is placed in the market as set out in the Terms and Conditions. It is not possible to set a price limit when selecting this choice.

Sale instructions using the Equiniti Financial Services Limited Share Sale Service are processed on a weekly basis.

Capital Gains Tax (CGT) might be applicable when the current share price is higher than the discounted share price of your maturing scheme and any gain is subject to tax. CGT means that you will be taxed on any profit or gain you make that is above the tax free allowance limit, which is £3,000 in tax years 2025/26 and 2026/27.

For more information on CGT please visit the Government's website Capital Gains Tax.

*Please note that the rates are subject to change. Kindly refer to the Terms and Conditions to confirm the current rates.

Choice 3

Buy National Grid plc shares and transfer them into an EQi Flexible ISA. For more information visit https://eqi.co.uk/info/isa/benefits.

A Stocks and Shares Individual Savings Account (ISA) allows you to shelter income, and/or capital gains made through savings and investments, from tax every tax year. Each year the government sets a limit on the amount you can save in an ISA – called an ISA allowance. For the 2025/2026 and 2026/2027 tax years, the allowance is £20,000. You can subscribe into more than one Cash ISA, or Stocks and Shares ISA or any combination of permitted ISAs in the same tax year, up to the overall allowance.

For more information on the tax benefits of an ISA visit Tax advantages of a flexible Stocks and Shares ISA | EQi.

Please note there is a fee for this service. Full details of the pricing and fees visit https://eqi.co.uk/info/isa/pricing.

Choice 4

Do not buy National Grid Shares and have your savings returned by calling the Equiniti Employee Helpline.