SUREFIRE RESOURCES NL — Capital/Financing Update 2010

Oct 28, 2010

28 October 2010

Dear Optionholder

NOTICE TO OPTION HOLDERS

We write to you as a registered holder of the above number of options as at today’s date. These options entitle you to acquire ordinary fully paid shares in Black Ridge Mining NL. Each option held is for the acquisition of one ordinary fully paid share, and the exercise price is 3 cents per share.

You are formally advised that these options will expire at 5.00pm Western Standard Time (“WST”) on 30 November 2010.

Options may be exercised wholly or in part by completing the exercise of options form and payment of 3 cents for each option exercised, by no later than 30 November 2010. If the ‘Notice of Exercise of Options and Application for Shares’ form and payment is not received by 5.00pm WST on 30 November 2010 the option will not be exercised and will result in the forfeiture of any rights that you as an option holder may have in relation to ordinary shares.

Pursuant to Listing Rule 6.24, Appendix 6A of the Australian Securities Exchange Limited (ASX), the Company provides the information contained in this notice.

Market Sale Price

The market sale price of ordinary fully paid shares in Black Ridge Mining NL on the ASX was $0.007 cents on 27 October 2010, being the last trading day prior to the date of this notice. During the three months preceding the date of this notice:

• the highest market price on the ASX was $0.016 cents on 22 September 2010; and

• the lowest market price on the ASX was $0.007 cents on 27 October 2010.

Last Date of Quotation on ASX

Last date of quotation of the options on ASX is Tuesday, 23[rd] November 2010.

A ‘Notice of Exercise of Options and Application for Shares’ form is enclosed for your completion.

How to Exercise your Options

Please complete the enclosed ‘Notice of Exercise of Options and Application for Shares’ form and then forward it together with your cheque, to be received by 5.00 pm WST on 30 November 2010 to:

Advanced Share Registry Limited Telephone: (08) 9389 8033 PO Box 1156 Facsimile: (08) 9389 7871 NEDLANDS WA 6909

Payments must be in Australian dollars only, and cheques should be made payable to Black Ridge Mining NL and crossed “Not Negotiable” and drawn on an Australian bank.

Yours sincerely

BLACK RIDGE MINING NL

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David Semmens Company Secretary