GREENWING RESOURCES LTD — Major Shareholding Notification 2006

Apr 17, 2006

Our ref: SPS:24407 Contact: Stephen Skinner Direct Line: 9420 7100 Direct email: sskinner@talbotolivier.com.au Partner: Stephen Skinner

Facsimile

To ASX Company Announcements Platform Attention: Tony Walsh

1900 999 279 Fax No

From Stephen Skinner

Date 18 April 2006

Pages (including this page). 5

If this facsimile transmission is a communication between solicitor and client it is privileged. If you have received this communication in error you are requested immediately to notify us (we will accept reverse charges) and return the original message to us at the postal address shown below.

Dear Tony

Bass Metals Ltd - Notice of Initial Substantial Holder (Form 603)

We act for Sempra Metal and Concentrates Corp.

Attached is a Notice of Initial Substantial holder (Form 603) dated 12 April 2006 that we have been requested to lodge with you.

You will note that the form records that Sempra now holds a 5.49% interest in the company.

Yours faithfully

Kyden / Kr.

Stephen Skinner Partner

A member firm of ALFA INTERNATIONAL^ed 120 Member Firms Worldwide

Level 8, Wesfarmers House 40 The Esplanade, Perth WA 6000 Postal Address: GPO Box 2569 Perth WA 6001 Telephone: (08) 9420 7100 Facsimile: (08) 9420 7101 Email: talbots@talbotolivier.com.au www.talbotolivier.com.au

311092_1

Form 603 Corporations Act 2001

Section 671B

Notice of initial substantial holder

Company Name/Scheme To	Bass Metals Lid
ACN/ARSN	109 933 995
Details of substantial holder (1)
Name	Sempra Energy and its subsidiaries listed in Annexure A' to this notice (Sempra Group)
ACN/ARSN (i applicable)

11/4/2006 The holder became a substantial holder on

1. Details of 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 on the date the substantial holder became a substantial holder are as follows:

. Class of securities (4) _________ ---------------------------------------	Number of securities	Person's votes (5) _	Voting power (6)
_________	own now ________	_	49% _________

3. Details of relevant interests

The nature of the relevant interest the substantial holder or an associate had in the following voting securities on the date the substantial holder became a substantial holder are as follows:

Holder of relevant interest	Nature of relevant interest (7)	Class and number of securities
Sempra Group	The relevant interests arise parsuant to section 608(1) and section 608(3) of the Corporations Act	2,000,000 ordinary

4. Details of present registered holders

The persons registered as holders of the securities referred to in paragraph 3 above are as follows:

Holder of relevant	Hegistered holder of	Person entitled to be	Class and number of
interest	securilies	registered as holder (8)	securities
Sempra Group	Sempra Metals and Concentrates Corp.	Semora Metals and Concentrates Corp _________	2,000,000 ordinary

5. Consideration

The consideration paid for each relevant interest referred to in paragraph 3 above, and acquired in the four months prior to the day that the substantial holder became a substantial holder is as follows:

. Holder of relevant hteres t ----------	. Dale of accusition _________	. Consideration (9)		---- --------- Class and number of securiles
.	_________	Cash	Non cash -----------	--------------------------------------
Sempra Group		50,525		250.000 ordinary .

Bass Metals

6. Associates

The reasons the persons named in paragraph 3 above are associates of the substantial holder are as follows:

$1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1$ . Name and ACN/ARSN (if vicable) --------- .	____ Nature of ' association .
------ See Annoxure 'B' _________	------------- -------- -------------- _ _

7. Addresses

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

------ -- ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, . . Name . STATE OF ALL PROPERTY	-------------------------------------- ______ __ Address . . ---------- _______ Control and the control of --------------------------------------- STATE OF THE REAL PROPERTY AND INCOME.
See Annexure 'A' ------------------- Technological Accordings	. ------------------ ______ ____
	. a construction of the company of the contract of the construction of the contract of the contract of the contract of the contract of the contract of the contract of the contract of the contract of the contract of the contr _________

Signature

DIRECTIONS

• 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 $(1)$ 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 reterred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly sel out in paragraph 7 of the form.
• See the definition of "associate" in section 9 of the Corporations Act 2001. $(2)$
• See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001, $(3)$
• The voting shares of a company constitute one class unless divided into separate classes. $(4)$
• The total number of votes attached to all the voting shares in the company or voting interests in the scheme (if any) that the person or an associate has a relevant $(5)$ interest in.
• The person's votes divided by the total votes in the body corporate or scheme multiplied by 100. $(6)$
• $\sqrt{a}$ Include details of:
• any relevant agreement or other circumstances by which the relevant interest was acquired. If subsection 6718(4) applies, a copy of any document setting out $\left( a\right)$ 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 disposal of the securities to
  which the relevant interest relates (incicating clearly the $_(b)$

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

• If the substantial holder is unable at to determine the identity of the person (eg. if the relevant interest arises because of an option) write "unknown". $(8)$
• Details of the consideration must include any and all benefits, money and other, that any person from whom a relevant interest was acquired has, or may, become ${9}$ entilled 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 subst the relevant interest was acquired.

Bass Metals

Annexure A - Form 603, Notice of initial substantial holder

This is annexure marked "A" of 1 page referred to in the Notice of initial substantial holder (Form 603) signed by me and dated 12 April 2006.

Signed on 12 April 2006

Limor Nissan Vice President, Sempra Metals and Concentrates Corp.

$Enfity Name$ $\overline{X}$	Registered Office Address
Sempra Metals and Concentrates Corp.	58 Commerce Road, Stamford, Connecticut 06902, United States of America
Sempra Energy Trading Corp	58 Commerce Road, Stamford, Connecticut 06902, United States of America
Sempra Solutions	101 Ash Street, San Diego, California 92101, United States of America
Sempra Global	101 Ash Street, San Diego, California 92101, United States of America
Sempra Energy	101 Ash Street, San Diego, California 92101, United States of America

Annexure B - Form 603, Notice of initial substantial holder

This is annexure marked "B" of 1 page referred to in the Notice of initial substantial holder (Form 603) signed by me and dated 12 April 2006.

Signed on 12 April 2006

Limor Nissan Vice President, Sempra Metals and Concentrates Corp.

	Nature of Association	me d
Name of Associate	Holds 100% of Sempra Metals and Concentrates Corp
Sempra Energy Trading Corp	Holds 100% of Sempra Energy Trading Corp
Sempra Solutions	Holds 100% of Sempra Solutions
Sempra Global	Holds 100% of Sempra Global
Sempra Energy