min extends share offer period for polaris

30 October 2009
Company Announcements Office
ASX Limited
Exchange Centre
4th Floor, 20 Bridge Street
SYDNEY NSW 2000
By E-Lodgement

Dear Sir / Madam,

Mineral Resources Limited (MRL) (ASX:MIN) gave notice today that it is extending the period of its Share Offer
and Option Offer for Polaris Metals NL (Polaris) so that the Offers will now close at 5.00pm (WST/Perth time) on
25 November 2009 (unless further extended
or withdrawn).

For the purposes of ASX Listing Rule 3.2, MRL confirms that in respect of the Share Offer:
(a) at the date of the Offer, MRL (together with its associates) had a relevant
interest in 19.9% of Polaris’ ordinary shares;
(b) at the date of this Offer extension, MRL (together with its associates) has a
relevant interest in 31.72% of Polaris’ ordinary shares.
For the purposes of ASX Listing Rule 3.2, MRL confirms that in respect of the Option Offer:
(a) at the date of the Offer, MRL (together with its associates) had a relevant
interest in 0% of Polaris’ options;
(b) at the date of this Offer extension, MRL (together with its associates) has a
relevant interest in 27.87% of Polaris’ options.

Yours Sincerely,
Bruce Goulds
Company Secretary.