Heemskirk Consolidated : Variation of Takeover Bid - Extension

Level 61

KING&WGDD Governor Phillip Tower

1 Farrer Place

MALLESONS Sydney NSW 2000

Australia

T [phone]

F [phone]

6 April 2017 www.kwm.com

To Market Announcements Office ASX Limited

Exchange Centre 20 Bridge Street

Sydney NSW 2000

Electronic lodgement

Dear Sir / Madam

Northern Silica Corporation - off market takeover bid for the entire issued share capital of Heemskirk Consolidated Limited ("Takeover") - Notice of variation extending offer period

Northern Silica Corporation's ("Bidder") refers to the takeover bid it made under the Bidder's Statement dated 13 March 2017 (as supplemented) for all the issued share capital in Heemskirk Consolidated Limited (ACN 106 720 138) ("Target"). The Bidder has determined to extend the offer period under the Takeover to 7:00pm on 16 May 2017.

In accordance with section 650D of the Corporations Act 2001 (Cth), please find attached a notice of variation in respect of the Takeover.

A copy of the notice of variation has been lodged with the Australian Securities and Investments Commission and will be given to the Target. The notice of variation will also be sent to each of the Target's shareholders.

Yours faithfully

David Eliakim Partner

www.kwm.com

£* | Ktt | |+*

Member firm of the King & Wood Mallesons network. See www.kwm.com for more information Asia Pacific | Europe | North America | Middle East

32086418 1

NORTHERN SILICA CORPORATION ("BIDDER") NOTICE OF VARIATION EXTENDING OFFER PERIOD TO: Heemskirk Consolidated Limited (ACN 106 720 138) ("Target")

Australian Securities & Investments Commission ("ASIC")

ASX Limited ("ASX")

Each person to whom an Offer was made

The Bidder gives notice under section 650D of the Corporations Act that it varies the Offer by extending the Offer Period so as to change the close of the Offer Period from 7:00pm (Sydney time) on 18 April 2017 to 7:00pm (Sydney time) on 16 May 2017 (unless further extended or withdrawn).

Unless the context requires otherwise, defined terms in the Bidder's Statement dated 13 March 2017 (as supplemented) have, the same meaning in this notice.

This notice was lodged with ASIC on 6 April 2017. ASIC takes no responsibility for the contents of this notice.

This notice is dated 6 April 2017.

Signed by on behalf of Northern Silica Corporation

32086418(1 )_Stampede - Notice of variation (extension)