7% Preference Shares Cover Letter (7 Preference Shares Cover Letter FINAL)

Dear 7% Preference Shareholder,

As you may have seen, we recently announced that CRH will be delisting from the London Stock Exchange on April 20, 2026. This means that, in addition to CRH's Ordinary Shares being delisted from London, the 7% Preference Shares, of which you are a holder, will also be delisted. This will not affect your ownership of the preference shares or the dividend rights associated with them, but it does mean that there will no longer be a public market on which they can be traded. The 7% Preference Shares are a legacy class of shares which have traded very infrequently over the last decade, leaving the 7% Preference Shareholders with limited opportunities to sell their shares.

As a result, we propose to offer our 7% Preference Shareholders the opportunity to exit their shareholdings on attractive terms of a cash payment of an amount equal to 40 times the annual dividend per 7% Preference Share. This will be done through the proposed cancellation of the preference share class as a whole, and as a result can only be implemented if approved by the ordinary shareholders at the forthcoming Annual General Meeting and then by the 7% Preference Shareholders voting as a class at your own separate meeting (known as the scheme meeting).

Further information, including details of the cash payment to be paid in exchange for the cancelled share class and the steps required to implement the cancellation, is included in the Appendix to this letter and in the documents enclosed. A Frequently Asked Questions document is also available on CRH's website at https://www.crh.com/investors/preference-shareholders/ and there is a helpline available on (+353) 1800 948 270 should you have any questions.

If you are in any doubt about the contents of the enclosed documents or what action you should take, you should consult an appropriately qualified independent professional adviser.

APPENDIX

Following a review of the Company's preference share capital structure, the Board announced on March 13, 2026 its intention to delist the Company's 7% 'A' Cumulative Preference Shares (the "7% Preference Shares") from the London Stock Exchange (the "LSE Delisting")1and its proposal to cancel the 7% Preference Share class as a whole in return for a cash payment to the 7% Preference Shareholders (the "Cancellation").

The Cancellation is subject to shareholder approval and will require the holders of the 7% Preference Shares (the "7% Holders") to consider and, if deemed appropriate, approve certain proposals at CRH's 2026 Annual General Meeting (the "2026 AGM") and at a separate scheme meeting of 7% Holders convened by the board of directors of CRH plc (the "Board") (the "Scheme Meeting"). The Board recommends that the 7% Holders vote in favour of all proposals, detailsof which are summarised further below.

If the Cancellation is implemented, the 7% Preferences Share class will be cancelled as a whole in exchange for a cash consideration payment of an amount equal to 40 times the annual dividend per 7% Preference Share. This reflects a value determined by reference to the annual dividend per preference share capitalized at a rate of 2.5156% or approximately 100bps2below the 30-year Bund rate as of March 12, 2026. The payment to 7% Holders will be €3.556 per 7% Preference Share cancelled, representing 280% of nominal value, with the 7% Preference Shares having a nominal value of €1.27 each.

On March 27, 2026, CRH published its Notice of Meeting and Proxy Statement 2026 in relation to the 2026 AGM to be held at 11:00 a.m. (Dublin) on Thursday May 7, 2026, at the Royal Marine Hotel, Marine Road, Dun Laoghaire, Co. Dublin, Ireland. The Notice of Meeting and Proxy Statement 2026 is available on the Company's website, https://www.crh.com/investors/shareholder-center/.

Pursuant to the Articles of Association of the Company, 7% Holders are entitled to vote on any resolution to reduce the Company's capital. Accordingly, you are entitled to vote with the ordinary shareholders on the resolution to reduce the Company's capital in connection with the cancellation of the preference shares (Proposal 9 at the 2026 AGM). You are notentitled to vote on any other proposals at the 2026 AGM. A form of proxy to enable to you register your vote on Proposal 9 at the AGM is enclosed.

The Scheme Meeting will be held at 10:00 a.m. on May 21, 2026 at the offices of Arthur Cox LLP, Ten Earlsfort Terrace, Dublin 2, D02 T380, Ireland in order for 7% Holders to consider, and if thought fit approve, a scheme of arrangement to cancel the 7% Preference Shares in exchange for cash consideration as set out above (the "Scheme").

The following documents (the "Scheme Circular") are enclosed with this letter: (i) the Scheme document which sets out the terms of the proposed Scheme, (ii) an explanatory statement as required

1 The LSE Delisting will become effective from 8:00 a.m. (London time) on April 20, 2026.

2 "bps" refers to basis points, which are a unit of measurement to describe percentage changes in interest rates, bond yields, and other financial instruments. 1 basis point is equivalent to 0.01% and 100bps is equivalent to 1.00%.

regarding the Scheme and the resolution to be considered, (iii) the notice convening the Scheme Meeting, and (iv) a form of proxy to enable you to vote at the Scheme Meeting. The Scheme Circular, together with a document with answers to Frequently Asked Questions in connection with the Cancellation, are available on the Company's website, https://www.crh.com/investors/preference-shareholders/ .

You should read the documents comprising the Scheme Circular in their entirety and consider whether or not to vote in favour of the Scheme at the Scheme Meeting. Detailed instructions on how to complete the enclosed form of proxy for the Scheme Meeting and how to attend the Scheme Meeting are set out in the notice convening the Scheme Meeting. If you are in any doubt about the contents of the Scheme Circular or what action you should take, you should consult an appropriately qualified independent professional adviser.