CATALYST METALS LIMITED — M&A Activity 2023

Feb 9, 2023

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10 February 2023

Dear Vango Shareholder,

CATALYST EXTENDS ITS OFFER PERIOD

Catalyst Metals Limited (ACN 118 912 495) ( Catalyst ) has extended the offer period under its offmarket takeover bid for all the fully paid ordinary shares in Vango Mining Limited (ACN 108 737 711) ( Vango ).

The offer is now scheduled to close at 5:00 pm (Perth time) on Monday, 6 March 2023 (unless withdrawn or further extended).

A formal notice of variation (as required by the Corporations Act 2001 (Cth)) is set out on the reverse of this letter.

How to accept

All Vango shareholders should have received an Acceptance Form with Catalyst’s Bidder’s Statement, including instructions on how to accept.

If you have any queries in relation to the Offer, or wish to request a new Acceptance Form, please contact Catalyst on +61 8 6107 5878 or at admin@catalystmetals.com.au.

Yours faithfully,

James Champion de Crespigny Managing Director Catalyst Metals Limited

This announcement has been authorised for release to the ASX by Frank Campagna, Company Secretary.

Unit 9, 331-335 Hay Street, Subiaco WA 6008 PO Box 416, Subiaco WA 6904 Telephone: (61-8) 6107 5878 Email: admin@catalystmetals.com.au www.catalystmetals.com.au ABN 54 118 912 495

A copy of this notice was lodged with ASIC on Friday 10 February 2023. ASIC takes no responsibility for the contents of this notice.

Notice of variation of Offer – extension of offer period

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To: Australian Securities & Investments Commission

ASX Limited

Vango Mining Limited ABN 68 108 737 711 (Vango)

Each Vango shareholder and other person referred to in sections 650D(1)(c) and 650D(2) of the Corporations Act 2001 (Cth) (as modified by ASIC Class Order [13/521])

Catalyst Metals Limited ABN 54 118 912 495 ( Catalyst ) gives notice for the purposes of section 650D of the Corporations Act 2001 (Cth) ( Corporations Act ) that its takeover offer ( Offer ) for all of the fully paid ordinary shares in Vango contained in its bidder’s statement dated 10 January 2023 ( Bidder’s Statement ) is varied by extending the period during which the Offer will remain open so that the Offer will now close at 5:00pm Perth time on Monday, 6 March 2023 (unless further extended or withdrawn).

Capitalised terms in this notice have the same meaning given in the Bidder’s Statement, unless the context requires otherwise.

Catalyst gives notice that it has extended its Offer to now close at 5.00pm Perth time on Monday, 6 March 2023.

In accordance with section 650C of the Corporations Act, Catalyst varies the Offer by:

• (a) extending the Offer Period so that the Offer will remain open for acceptance until 5:00pm Perth time on Monday, 6 March 2023 (unless further extended or withdrawn); and

• (b) replacing “20 February 2023” with “6 March 2023” in each place the closing date of the Offer is referred to in the Bidder’s Statement (including the acceptance forms).

Date: 10 February 2023

Signed for and on behalf of Catalyst Metals Limited pursuant to a resolution of the directors.

James Champion de Crespigny Managing Director Catalyst Metals Limited

Stephen Boston Chairman Catalyst Metals Limited

New date for giving notice on status of Conditions – section 630(2) Notice

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To: ASX Limited

Vango Mining Limited ABN 68 108 737 711 (Vango)

Catalyst Metals Limited ABN 54 118 912 495 ( Catalyst ) has made offers under an off-market takeover bid for all of the fully paid ordinary shares in Vango contained in its bidder’s statement dated 10 January 2023 ( Bidder’s Statement ) ( Offer ). Capitalised terms in this notice have the same meaning given in the Bidder’s Statement unless the context requires otherwise.

On 10 February 2023, Catalyst provided notice under section 650D of the Corporations Act 2001 (Cth) ( Corporations Act ) that it has extended the Offer, such that it will close at 5:00pm (Perth time) on Monday, 6 March 2023.

In accordance with section 630(2) of the Corporations Act, Catalyst gives notice that as a result of the extension of the Offer, the new date for giving notice on the status of the conditions to the Offer set out in section 11.8 of the Bidder’s Statement ( Conditions ) is Friday, 24 February 2023.

As at the date of this notice, none of the Conditions, other than the minimum acceptance condition contained in section 11.8(a) of the Bidder’s Statement ( Minimum Acceptance Condition ), have been freed or, so far as Catalyst knows, fulfilled. Accordingly, the Offer remains subject to the Conditions excluding the Minimum Acceptance Condition.

Date: 10 February 2023

Signed for and on behalf of Catalyst Metals Limited .

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James Champion de Crespigny Managing Director Catalyst Metals Limited