KING RIVER RESOURCES LIMITED — Major Shareholding Notification 2008

Jun 5, 2008

ASX ANNOUNCEMENT

MINERAL SECURITIES LIMITED

UPDATE

6 June 2008

Extension of deadline for CopperCo to make an offer for Minsec

Mineral Securities Limited ("Minsec") announces an agreed extension of the deadline for CopperCo Limited ("CopperCo") to despatch its Offer documents to 30 June 2008.

CopperCo anticipates dispatch of the Offer documents to Minsec shareholders on or around 20 June 2008.

Amendment to Bidding Agreement

At the time of the announcement of the proposed Offer on 29 January 2008, the Bidding Agreement provided that those Minsec Directors who were not already CopperCo Directors ("Minsec Independent Directors") would join the board of CopperCo on completion of the Offer. Minsec directors, the Hon. John Moore AO and Keith Liddell are also directors of CopperCo.

In the time since the initial announcement, the boards of both companies have been considering the postcompletion phase, during all or some of which it is likely that Minsec will still be independently listed.

The CopperCo Directors and the Minsec Independent Directors also now recognise that, with the key assets of the merged entity located in the southern hemisphere, effective operational management and cost issues mean that the enlarged CopperCo group will be headquartered in Australia.

Therefore, following discussions between the companies, it has now been agreed that the Bidding Agreement be amended so that CopperCo will defer until after completion of the Offer, any decision to invite any of the current Minsec Independent Directors, all of whom are based in the UK, onto the board of CopperCo.

Change of interest in Niplats Australia Limited ("Niplats")

Following NiPlats' share placement on 5 June 2008, Minsec's voting power has been reduced from 44.1% to 40.11% as shown in the attached Form 604.

For further information, please contact:

Keith Liddell, Chief Executive Officer James Haddock, Company Secretary Tel: +44 20 7478 5100 (London) +61 8 9221 7466 (Perth)

Martin Eales, RBC Capital Markets Tel: +44 (0) 20 7029 7881

Form 604

Corporations Act 2001 Section 671B

Notice of change of interests of substantial holder

To Company Name/Scheme		Niplats Australia Limited ("Niplats")
ACN/ARSN	100 714 181
1. Details of substantial holder Name	(together "Mineral Securities")	Mineral Securities Limited and each of the companies listed in Annexure "A"
ACN/ARSN (if applicable)	124 546 443
There was a change of interests of the substantial holder on		5 June 2008
The previous notice was given to the company on		14 September 2007
The previous notice was dated		14 September 2007

2. Previous and present voting power

The total number of votes attached to all the voting shares in the company or voting interests in the scheme that the substantial holder or an associate (2) had a relevant interest (3) in when last required, and when now required, to give a substantial holding notice to the company or scheme, are as follows:

Class of Securities (4)	Previous Notice		Present Notice
	Person's votes	Voting power $(5)$	Person's Votes	Voting Power
Ordinary Shares	30,000,000	44.1%	30,000,000	40.11%

3. Changes in relevant interests

Particulars or each change in, or change in the nature of, a relevant interest of the substantial holder or an associate in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme as follows:

Date of change	Person whose relevant interest changed	Nature of change $(6)$	Consideration given in relation to change $(7)$	Class and number of securities affected	Person's votes affected
5/06/2008	Mineral Securities	Dilution of interest due to share by conducted placement Niplats	Not Applicable	Not Applicable	Not Applicable

4. Present relevant interests

Particulars of each relevant interest of the substantial holder in voting securities after the change are as follows:

Holder of relevant	Registered holder	Person entitled to	Nature of relevant	Class and number of	Person's votes
interest	of securities	be registered as	interest $(6)$	securities
		holder $(8)$
Mineral Securities	Mineral Securities	Mineral	interest Relevant	30,000,000 ordinary	30,000,000
	Holdings Pty Ltd	Securities	sections under	shares in the capital of
		Holdings Pty Ltd	608(1) and $608(3)$	Niplats
			of the Corporations
			Act

1. Changes in association
   The persons who have become associates (2) of, ceased to be associates of, or have changed the nature of their association (9) with, the substantial holder in relation to voting interests in the company or scheme are as follows:

Name and ACN/ARSN (if applicable)	Nature of association
Mineral Securities	Members of the Mineral Securities group of companies are associates of Mineral Securities Ltd and each other pursuant to sections $12(2)(a)(i)$ , (ii) or (iii) of the Corporations Act 2001 (Ch).

6. Addresses

The addresses of persons named in this form are as follows:

di sergera del segundo del s

Name	Address
Mineral Securities Limited	C/- Level 22, 77 St Georges Terrace, Perth, Western Australia
Mineral Securities group of companies	C/- Level 22, 77 St Georges Terrace, Perth, Western Australia

Signature

print name	James Haddock	capacity	Company Secretary
sign here		date	5 June 2008

DIRECTIONS

• (1) If there are a number of substantial holders with similar or related relevant interests (eg. a corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group, if the membership of each group, with the names and addresses of members is clearly set out in paragraph 6 of the form.
• (2) See the definition of "associate" in section 9 of the Corporations Act 2001.
• (3) See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001.
• (4) The voting shares of a company constitute one class unless divided into separate classes.
• (5) The person's votes divided by the total votes in the body corporate or scheme multiplied by 100.
• Included details of: $(6)$
• any relevant agreement or other circumstances because of which the change in relevant interest occurred. If subsection 671B(4) $(a)$ applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accurate details of any contract, scheme or arrangement must accompany this form, together with a written statement certifying this contract, scheme or arrangement; and
• any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or $(b)$ disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies).

See definition of "relevant agreement" in section 9 of the Corporations Act 2001.

• Details of the consideration must include any and all benefits, money and other, that any person from whom a relevant interest was acquired $(7)$ has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included of any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired.
• (8) If the substantial holder is unable to determine the identity of the person (eg. relevant interest arises because of an option) write "unknown".
• (9) Give details, if appropriate, of the present association and any change in that association since the last substantial holding notice.

Annexure "A" to ASIC Form 604

This is Annexure "A" of 1 page referred to in ASIC Form 604 - Notice of change of interests of substantial shareholder.

Dated this 5^th day of June 2008

James Haddock Company Secretary
Mineral Securities Limited

Substantial holders $1.$

The following persons are substantial holders by virtue of being associates of Mineral Securities Ltd, and each other, pursuant to sections 12(2)(a)(i), (ii) or (iii) of the Corporations Act 2001 (Cth).

ACN/Company No.	Company Name	Country of Incorporation
125 112 325	Mineral Securities Investments (Australia) Pty Ltd	Australia
091 158 593	Mineral Securities Operations Limited	Australia
092 525 614	Mineral Securities Holdings Pty Ltd	Australia
117 927 965	Platmin Holdings Pty Ltd	Australia
109 470 644	Mineral Securities (China) Pty Ltd	Australia
111 364 562	Mineral Securities (NK) Pty Ltd	Australia
097 479 420	Allied Mining Pty Ltd	Australia
097 126 773	Goodwest Investments Pty Ltd	Australia
095 682 643	Austalian Ferroalloys Pty Ltd	Australia
125 939 291	Australis Exploration Pty Ltd	Australia
009 633 096	Kadina Pty Limited	Australia
119 248 243	Scarborough Minerals (Australia) Pty Ltd	Australia
000 741 373	Buka Minerals Pty Limited	Australia
064 048 497	Buka Minerals (Lady Loretta No.2)	Australia
009 280 086	Manor Resources NL	Australia
008 744 714	Scarborough NL	Australia
009 173 880	Danae Resources Pty Limited	Australia
077 189 096	Buka Technologies Pty Ltd	Australia
925294	Mineral Securities Hong Kong (NK) Limited	Hong Kong
943579	Mineral Securities Golden Sea Limited	Hong Kong
669079	Cuesta Resources (BVI) Limited	British Virgin Islands
669078	Algarrobo Holdings (BVI) Limited	British Virgin Islands
1390446	Minsec Investments (BVI) Limited	British Virgin Islands
	Minsec Investment Holdings (BVI) Limited	British Virgin Islands
	Scarborough Minerals plc	England
	Andalucla Mineral Services Limited	England
	Sierra Minerals Limited	England
	Sierra Explorations SA	Chile
	Thrace Investments BV	Netherlands
	Kyprou Gold Limited	England
	Thrace Minerals Helas SA	Greece
	Greenwich Resources (Czech Republic)	Czech Republic
	Scarborough Minerals (Finance) Limited	England
	Scarborough Minerals Overseas Holdings Limited	England
	Scarborough Minerals International BV	Netherlands
	SM Corporate Secretary Limited	England
	SM Corporate Director Limited	England
	Multiplex Development Zarmitan Limited	England
112 731 638	Buka Gold Limited	Australia
110 465 177	Gympie Eldorado Mining Pty Ltd	Australia
	Mineral Securities (SA) P/L	South Africa