Report to SET

Year 2005 10/Jan/05 Hedging to protect Padaeng’s income against any fluctuation in LME zinc price (revised).

Year 2004 12/Nov/04 Clarifications on company’s performances in the third quarter and nine-month of 2004 10/Nov/04 Notification of resolutions of the Board of director’s meeting No. 05-2004 05/Nov/04 Notification of resignation of a director 05/Oct/04 Notification of resignation of a director 16/Aug/04 Clarifications on company’s performances in the second quarter and first-half of 2004 13/May/04 Clarification on the company’s performance in the first quarter of 2004 23/Apr/04 Notification of resolutions of the 2004 Ordinary Shareholders’ Meeting 22/Feb/04 Clarification on the company’s performance results in 2003 20/Feb/04 Clarification of resolutions of the board of directors’ meeting, No. 01-2004 17/Feb/04 Resolutions of the board of directors’ meeting, No. 01-2004

Year 2003 14/Nov/03 Clarifications on company’s performances in the third quarter and nine months of 2003 14/Aug/03 Clarifications on company’s performances in the second quarter and first-half of 2003 14/May/03 Clarification on the company’s performance in the first quarter of 2003 22/Apr/03 Notification of resolutions of the 2003 Ordinary Shareholders’ Meeting 24/Feb/03 Clarification on the company’s performance results in 2002 11/Feb/03 Resolutions of the board of directors’ meeting, No. 01-2003 (revised)

Year 2002 14/Nov/02 Clarifications on company’s performances in the third quarter and nine months of 2002 14/Aug/02 Clarifications on company’s performances in the second quarter and first-half of 2002 07/Aug/02 Padaeng obtains zinc mining license 15/May/02 Resolutions of the board of directors’ meeting, No. 03-2002 15/May/02 Clarification on the company’s performance in the first quarter of 2002 23/Apr/02 Notification of resolutions of the 2002 ordinary shareholders’ meeting 23/Apr/02 Resolutions of the board of directors’ meeting, No. 02-2002 27/Feb/02 Clarification on the company’s performance results in 2001 06/Feb/02 Resolutions of the board of directors’ meeting, No. 01-2002

Year 2001 14/Nov/01 Clarifications on company’s performances in the third quarter and nine months of 2001 06/Sep/01 Union Miniere has changed its name to Umicore 14/Aug/01 Clarifications on company’s performances in the second quarter and first-half of 2001 15/May/01 Clarification on the company’s performance in the first quarter of 2001 25/Apr/01 Notification of resolutions of the 2001 ordinary shareholders’ meeting 22/Feb/01 Clarification on the company’s performance results in 2000 21/Feb/01 Resolutions of the board of directors’ meeting, No. 1/2001 17/Jan/01 Report on the utilization of the increased capital

Year 2000 15/Dec/00 Clarification on Agreement to sell between Padaeng Poongsan Metals Company Limited and PSMT company Limited 13/Dec/00 Agreement to sell between Padaeng Poongsan Metals Company Limited and PSMT company Limited 14/Nov/00 The company’s performances in the third quarter and nine months of 2000 21/Aug/00 Participation Agreement between Padaeng Industry Public Company Limited and Pan Australian Resources N. L. 15/Aug/00 Clarifications on company’s performances in the second quarter and first-half of 2000 15/Aug/00 Resolution of the board of directors’ meeting, No. 8/2000 27/Jul/00 Report on the result of a share-offering Padaeng Industry Public Company Limited Registration No. Bor Mor Jor. 293 13/Jul/00 Resolutions of the Extraordinary shareholders’ meeting No. 1/2000 19/Jun/00 Resolution of the board of directors’ meeting, No. 7/2000 15/May/00 Resolution of the board of directors’ meeting, No. 6/2000 28/Apr/00 Resolutions of the 2000 Ordinary Shareholders’ Meeting 29/Feb/00 Resolutions of the Board of Directors’ Meeting, No. 3 /2000 29/Feb/00 The Company’s Performance Results in 1999

Year 1999 02/Dec/99 Disposition of the Remaining Shares Held in NFC 15/Nov/99 The Company’s Performances for the Third Quarter and the Nine-Month Period Ended 30 September 1999 31/Aug/99 Signing a Memorandum of Understanding With a Foreign Investor in Relation to a Subsidiary’s Loei Copper Project (Area 3) 16/Aug/99 Company’s Performances in the Second Quarter and First-half of 1999