DIMERIX LIMITED — Share Issue/Capital Change 2008

Jun 5, 2008

Rule 2.7, 3.10.3, 3.10.4, 3.10.5

Appendix 3B

New issue announcement, application for quotation of additional securities and agreement

Information or documents not available now must be given to ASX as soon as available. Information and documents given to ASX become ASX’s property and may be made public.

Introduced 1/7/96. Origin: Appendix 5. Amended 1/7/98, 1/9/99, 1/7/2000, 30/9/2001, 11/3/2002, 1/1/2003, 24/10/2005.

Name of entity

SUN BIOMEDICAL LIMITED ABN 18 001 285 230

We (the entity) give ASX the following information.

Part 1 - All issues

You must complete the relevant sections (attach sheets if there is not enough space).

1 +Class of +securities issued or to Ordinary shares. be issued 2 Number of[+] securities issued or 228,000 ordinary shares. to be issued (if known) or maximum number which may be issued 3 Principal terms of the[+] securities Shares rank pari passu with fully paid ordinary (eg, if options, exercise price and shares on issue. expiry date; if partly paid +securities, the amount outstanding and due dates for payment; if +convertible securities, the conversion price and dates for conversion)

• See chapter 19 for defined terms.

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Appendix 3B Page 1

4 Do the+securities rank equally in all respects from the date of allotment with an existing+class of quoted+securities? If the additional securities do not rank equally, please state:  the date from which they do  the extent to which they participate for the next dividend, (in the case of a trust, distribution) or interest payment  the extent to which they do not rank equally, other than in relation to the next dividend, distribution or interest payment 5 Issue price or consideration 6 Purpose of the issue (If issued as consideration for the acquisition of assets, clearly identify those assets) 7 Dates of entering +securities into uncertificated holdings or despatch of certificates	Yes.
	1.3 cents per ordinary share.
	Ordinary shares issued upon exercise of options.
	5 June 2008.

Number +Class 8 Number and +class of all 397,370,388 Ordinary Shares +securities quoted on ASX ( including the securities in clause 2 if applicable)

• See chapter 19 for defined terms.

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Appendix 3B Page 2

9 Number and +class of all +securities not quoted on ASX (including the securities in clause 2 if applicable) 10 Dividend policy (in the case of a trust, distribution policy) on the increased capital (interests)	500,000 428,675 1,250,000 40,000,000 986,263 1,000,000 20,000,000 8,750,000	Options– exercise price 10 cents, expiring 15 Dec 2008. Options– exercise price 12 cents, expiring 31 Dec 2008. Options– exercise price 25 cents, expiring 31 Dec 2008. Options– exercise price 35 cents, expiring 28 Jan 2009. Options– exercise price 1.3 cents, expiring 30 June 2009. Options– exercise price 10 cents, expiring 12 Sept 2009. Options– exercise price 10 cents, expiring 30 June 2011. Options– exercise price 8 cents, expiring 31 December 2008.
	The directors of the Company may from time to time determine to distribute the profits of the Company by way of dividend amongst the Shareholders in proportion to the amounts paid up on the Shares held by them.

Part 2 - Bonus issue or pro rata issue

11 Is security holder approval required? 12 Is the issue renounceable or nonrenounceable? 13 Ratio in which the[+] securities will be offered 14 +Class of +securities to which the offer relates

• See chapter 19 for defined terms.

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Appendix 3B Page 3

15	+Record date to determine
	entitlements
16	Will holdings on different
	registers (or subregisters) be
	aggregated for calculating
	entitlements?
17	Policy for deciding entitlements
	in relation to fractions
18	Names of countries in which the
	entity has+security holders who
	will not be sent new issue
	documents
	Note: Security holders must be told how their
	entitlements are to be dealt with.
	Cross reference: rule 7.7.
19	Closing date for receipt of
	acceptances or renunciations
20	Names of any underwriters
21	Amount of any underwriting fee
	or commission
22	Names of any brokers to the
	issue
23	Fee or commission payable to
	the broker to the issue
24	Amount of any handling fee
	payable to brokers who lodge
	acceptances or renunciations on
	behalf of+security holders
25	If the issue is contingent on
	+security holders’ approval, the
	date of the meeting
26	Date entitlement and acceptance
	form and prospectus or Product
	Disclosure Statement will be sent
	to persons entitled

• See chapter 19 for defined terms.

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Appendix 3B Page 4

27	If the entity has issued options,
	and the terms entitle option
	holders to participate on
	exercise, the date on which
	notices will be sent to option
	holders
28	Date rights trading will begin (if
	applicable)
29	Date rights trading will end (if
	applicable)
30	How do+security holders sell
	their entitlements_in full_through
	a broker?
31	How do+security holders sell
	part of their entitlements
	through a broker and accept for
	the balance?
32	How do+security holders dispose
	of their entitlements (except by
	sale through a broker)?
33	+Despatch date

• See chapter 19 for defined terms. Appendix 3B Page 5

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Part 3 - Quotation of securities

You need only complete this section if you are applying for quotation of securities

• 34 Type of securities ( tick one )

• (a)[Securities described in Part 1 ]

• (b)[All other securities ]

Example: restricted securities at the end of the escrowed period, partly paid securities that become fully paid, employee incentive share securities when restriction ends, securities issued on expiry or conversion of convertible securities

Entities that have ticked box 34(a)

Additional securities forming a new class of securities

Tick to indicate you are providing the information or documents

• 35 If the[+] securities are[+] equity securities, the names of the 20 largest holders of the additional[+] securities, and the number and percentage of additional[+] securities held by those holders

• 36 If the[+] securities are[+] equity securities, a distribution schedule of the additional +securities setting out the number of holders in the categories 1 - 1,000

1,001 - 5,000 5,001 - 10,000 10,001 - 100,000 100,001 and over

• 37 A copy of any trust deed for the additional[+] securities

Entities that have ticked box 34(b)

• 38 Number of securities for which +quotation is sought

• 39 Class of +securities for which quotation is sought

• See chapter 19 for defined terms.

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40 Do the[+] securities rank equally in all respects from the date of allotment with an existing[+] class of quoted[+] securities?

If the additional securities do not rank equally, please state:

• the date from which they do

• the extent to which they participate for the next dividend, (in the case of a trust, distribution) or interest payment

• the extent to which they do not rank equally, other than in relation to the next dividend, distribution or interest payment

41 Reason for request for quotation now

Example: In the case of restricted securities, end of restriction period

(if issued upon conversion of another security, clearly identify that other security)

42

Number +Class Number and +class of all +securities quoted on ASX ( including the securities in clause 38)

• See chapter 19 for defined terms.

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Appendix 3B Page 7

Appendix 3B New issue announcement

Quotation agreement

• 1 +Quotation of our additional +securities is in ASX’s absolute discretion. ASX may quote the +securities on any conditions it decides.

• 2 We warrant the following to ASX.

• The issue of the +securities to be quoted complies with the law and is not for an illegal purpose.

• There is no reason why those +securities should not be granted +quotation.

• An offer of the +securities for sale within 12 months after their issue will not require disclosure under section 707(3) or section 1012C(6) of the Corporations Act.

Note: An entity may need to obtain appropriate warranties from subscribers for the securities in order to be able to give this warranty

• Section 724 or section 1016E of the Corporations Act does not apply to any applications received by us in relation to any +securities to be quoted and that no-one has any right to return any +securities to be quoted under sections 737, 738 or 1016F of the Corporations Act at the time that we request that the +securities be quoted.

• If we are a trust, we warrant that no person has the right to return the +securities to be quoted under section 1019B of the Corporations Act at the time that we request that the +securities be quoted.

• 3 We will indemnify ASX to the fullest extent permitted by law in respect of any claim, action or expense arising from or connected with any breach of the warranties in this agreement.

• 4 We give ASX the information and documents required by this form. If any information or document not available now, will give it to ASX before +quotation of the +securities begins. We acknowledge that ASX is relying on the information and documents. We warrant that they are (will be) true and complete.

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Sign here: ........................................................

Date: 6 June 2008 (Company secretary)

Print name: Alfonso Grillo

m420669_1.DOC/ET

[+] See chapter 19 for defined terms.

24/10/2005 Appendix 3B Page 1