First Tech Australia Pty Ltd increased its relevant interest in Nautronix Limited on 22 February 2002, from 2,933,267 ordinary shares (4.319%) to 3,655,780 ordinary shares (5.385%).

AMP Limited decreased its relevant interest in Renewable Energy Corporation Limited on 20 February 2002, from 9,053,009 ordinary shares (6.40%) to 7,516,419 ordinary shares (5.31%).

AMP Limited became a substantial shareholder in Oil Search Limited on 21 February 2002 with a relevant interest in the issued share capital of 34,822,146 ordinary shares (5.25%).

Portfolio Partners Ltd increased its relevant interest in Australian Worldwide Exploration Limited on 20 February 2002, from 21,537,030 ordinary shares (11.19%) to 26,871,007 ordinary shares (12.47%).

Portfolio Partners Ltd ceased to be a substantial shareholder in Oil Search Limited on 21 February 2002.