SGH LIMITED — M&A Activity 2024

May 14, 2024

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15 May 2024

The Manager Market Announcements Office ASX Limited 20 Bridge Street SYDNEY NSW 2000 By electronic lodgement

Dear Sir/Madam

Takeover Offer by Seven Group Holdings Limited in relation to Boral Limited Notice of Variation – extension of offer period

We refer to the off-market takeover bid by Network Investment Holdings Pty Ltd ACN 078 448 512 ( SGH Bidder ), a wholly owned subsidiary of Seven Group Holdings Limited, for all the ordinary shares in Boral Limited ( Boral ) contained in its Bidder’s Statement (as replaced and dispatched on 4 March 2024 and supplemented on 4 March 2024, 26 March 2024 and 12 April 2024) (the Offer ).

We enclose a notice, pursuant to section 650D of the Corporations Act 2001 (Cth), that SGH Bidder has varied its Offer to extend the offer period ( Notice ).

The Offer is now scheduled to close at 7.00pm (Sydney time) on Friday, 31 May 2024 (unless extended).

A copy of the Notice, which has been lodged with ASIC, will be given to Boral and each Boral shareholder who has not yet accepted the Offer due to the operation of section 650D(2) of the Corporations Act.

Yours sincerely

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Warren Coatsworth

Company Secretary

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Seven Group Holdings Limited | ABN 46 142 003 469

Level 30, 175 Liverpool Street, Sydney NSW 2000 | Postal Address: PO Box 745, Darlinghurst NSW 1300 Telephone +61 2 8777 7574

A copy of this notice was lodged with ASIC on 15 May 2024. ASIC takes no responsibility for the contents of this notice.

Network Investment Holdings Pty Ltd (SGH Bidder) a wholly-owned subsidiary of Seven Group Holdings Limited (SGH)

Takeover offer for Boral Limited

Notice of variation – Extension of offer period

To: Australian Securities and Investments Commission ( ASIC )

ASX Limited

Boral Limited ( Boral )

Each Boral shareholder and other person referred to in section 650D(1)(c) and section 650D(2) of the Corporations Act 2001 (Cth)

Network Investment Holdings Pty Limited (ACN 078 448 512) ( SGH Bidder ) gives notice for the purposes of section 650D of the Corporations Act 2001 (Cth) that its off-market takeover offer for all of the ordinary shares in Boral contained in its bidder’s statement, as replaced and dispatched on 4 March 2024, and supplemented on 4 March 2024, 26 March 2024 and 12 April 2024 ( Bidder’s Statement ) is varied by extending the period during which the offer will remain open so that the offer will now close at 7.00pm (Sydney time) on 31 May 2024.

As announced on 4 March 2024 in the Second Supplementary Bidder’s Statement and the notice given on Thursday 28 March 2024 pursuant to section 630, the Offer is free of the defeating conditions contained in section 9.7 of the Bidder’s Statement and accordingly the Offer is wholly unconditional.

DATED: 15 May 2024

Signed for and on behalf of Network Investment Holdings Pty Limited

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Richard Richards Director