SCIDEV LTD — Investor Presentation 2007

May 2, 2007

ABN 25 001 150 849

Superior and Sustainable Metals Production

Gordon Chiu Building J01 Department of Chemical Engineering Maze Crescent University of Sydney NSW 2006 Australia

Phone: 02-9351-6741 Fax: 02-9351-7180 Email: mail@intec.com.au Website: www.intec.com.au ASX code: INL

Companies Announcements Office Australian Stock Exchange

03 May 2007

Macquarie Connections Australian Conference Presentation

Please find attached the presentation that I will be delivering later today to the Macquarie Connections Australian Conference in the Microcap/S&P ASX ex-300 sector.

I have today been interviewed by Macquarie Digital and this interview segment will appear shortly on the Macquarie Digital web site and can then be accessed via the Intec web site www.intec.com.au.

Yours faithfully, Intec Ltd

Philip R. Wood

Philip R Wood Managing Director & Chief Executive Officer

Hellyer Tailings Resource – 11Mt and US\$3 billion
Element	Grade	Quantity	In-situ US\$m*	$v_0$ of metal value
Zinc	2.8%	305,000t	1,145	$39\%$
Lead	3.0%	330,000t	655	22%
Silver	$88 \text{ g/t}$	30,850,000 ozs	416	14%
Gold	$2.6 \text{ g/t}$	910,000 ozs	617	21%
Copper	0.16%	17,400t	136	5%
Total			\$2,969	100%
	* US\$ metal prices at 30 April 2007.

	Financial Projections for HZCP 'Base Case'			Inter Group
	Intec's 50% JV interest $\omega$ 1.5Mtpa Key financial drivers:	- zinc price
	Zine Price US\$/lb	- concentrate treatment charges 1.75 1.25 1.50
	US\$/A\$	0.82	0.82	0.82
	Net JV Sales Revenue 1 A\$m	67.9	59.6	50.1
	JV Operating Costs ASm	24.8	24.7	24.7
	EBITDA A\$m – JV Total	43.1	34.8	25.4
	EBITDA 3 ASm Lutec 50% Share	21.6	17.4	12.7