Lone Star Industries Inc Watch

from 8-K 1 page Exhibit 1 December 1, 1999 Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 Commissioners: We Have Read the Statements Made by Lone Star Industries, Inc. (Copy Attached), Which We Understand Will Be Filed With the Commission, Pursuant to Item 4 of Form 8-K, as Part of the Company's Form 8-K Report Dated November 29, 1999. We Agree With the Statements Concerning Our Firm in Such Form 8-K. Very Truly Yours, /S/ Pricewaterhousecoopers Llp

from SC 13D 1 page <page> Exhibit 1 Filing Agreement Dated September 3, 1999 Re: Joint Filing of Schedule 13d the Undersigned Hereby Agree That: (I) Each of Them Is Individually Eligible to Use the Schedule 13d Attached Hereto; (II) the Attached Schedule 13d Is Filed on Behalf of Each of Them; (III) Each of Them Is Responsible for the Timely Filing of Such Schedule 13d and Any Amendments Thereto, and for the Completeness and Accuracy of the Information Therein Concerning Itself; but None of Them Is Responsible for the Completeness and Accuracy of the Information Concerning the Other Persons Making the Filing, Unless It Knows or Has Reason to Believe That Such Information Is Inaccurate. Dyckerhoff Aktiengesellschaft /S/ Peter Steiner By: Name: Peter Steiner Title: Chief Financial Officer /S/ Luis Rauch By: Name: Luis Rauch Title: Treasurer Level Acquisition Corp. /S/ Felix Pardo By: Name: Felix Pardo Title: President, Treasurer and Secretary

from 8-K ~50 pages Form of International Purchase Agreement

from 8-K ~50 pages Form of U.S. Purchase Agreement

from SC 13D 1 page Exhibit 1 Agreement of Joint Filing Pursuant to Rule 13d-1(f) Promulgated Under the Securities Exchange Act of 1934, the Undersigned Persons Hereby Agree to File With the Securities and Exchange Commission the Statement on Schedule 13d (The "Statement") to Which This Agreement Is Attached as an Exhibit, and Agree That Such Statement, as So Filed, Is Filed on Behalf of Each of Them. in Witness Whereof, the Undersigned Have Executed This Agreement as of September 26, 1994. Dickstein & Co., L.P. By: Alan Cooper, as Vice President of Dickstein Partners Inc., the General Partner of Dickstein Partners, L.P., the General Partner of Dickstein & Co., L.P. Alan Cooper Name: Alan Cooper Dickstein International Limited By: Alan Cooper, as Vice President of Dickstein Partners Inc., the Agent of Dickstein International Limited Alan Cooper Name: Alan Cooper <page> Dickstein Focus Fund L.P. By: Alan Cooper, as Vice President of Dickstein Partners Inc., the General Partner of Dickstein Partners, L.P., the General Partner of Dickstein Focus Fund L.P. Alan Cooper Name: Alan Cooper Dickstein Partners, L.P. By: Alan Cooper, as Vice President of Dickstein Partners Inc., the General Partner of Dickstein Partners, L.P. Alan Cooper Name: Alan Cooper Dickstein Partners Inc. By: Alan Cooper, Vice President Alan Cooper Name: Alan Cooper Mark Dickstein Mark Dickstein <page> <page>