The Debtors are providing these instructions to you pursuant to the procedures outlined in the Court’s

IN THE UNITED STATES BANKRUPTCY COURT FOR THE SOUTHERN DISTRICT OF TEXAS CORPUS CHRISTI DIVISION In re: § Case No. 05-21207 §ASARCO LLC, et al. § Chapter 11 Debtors. § (Jointly Administered) § Important Information Regarding Option to Submit Asbestos Claims Data in Electronic Format In Lieu of the Asbestos-Related Proof of Claim Form The Debtors are providing these instructions to you pursuant to the procedures outlined in the Court’s Order (i) Establishing August 1, 2006 as the General Bar Date for Claims; (ii) Establishing September 30, 2006 as the Asbestos Claims Bar Date; (iii) Establishing Other Bar Dates for Claims Not Subject to the General Bar Date;(iv) Approving Proof of Claim Forms; and (v) Approving the Form and Manner of Notice of the Bar Dates and the Amendment of Schedules (the “Bar Date Order”), a copy of which is enclosed. You should read the Bar Date Order carefully. Paragraphs 17-29 of the Bar Date Order provide that claimants asserting asbestos-related claims may obtain an exemption and not be required to file an Asbestos Proof of Claim by the Asbestos Claims Bar Date. In order to obtain that exemption, claimants must provide the Debtors’ asbestos claims data-management consultants, The Claro Group LLC (“The Claro Group”), with an electronic database the complies with the attached database instructions and by complying with all other requirements of the Bar Date Order. If you decide ...