July 30, 2002

CEMEX, S.A. de C.V. ("CEMEX", NYSE: CX), through its indirect wholly owned subsidiary, Tricem Acquisition, Corp. ("Tricem"), announced today the successful completion of the tender offer made by Tricem for all of the outstanding shares of common stock of Puerto Rican Cement Company, Inc. ("PRCC", NYSE: PRN), at a price of U.S.$35.00 per share. The offer expired at 12:00 midnight Eastern time, on Monday, July 29, 2002.

Based on information provided by Citibank, N.A., the depositary for the tender offer, approximately 5,028,841 shares of PRCC were tendered (including approximately 4,169 shares tendered by notice of guaranteed delivery). This number of shares represents approximately 97.7% of the outstanding shares of PRCC. CEMEX, through Tricem, has accepted for payment all shares validly tendered and not properly withdrawn prior to the expiration of the offer.

All remaining publicly held shares will be acquired for U.S.$35.00 per share in a subsequent second-step merger transaction upon satisfaction or waiver of the conditions to the merger under the merger agreement. As a result of the purchase of shares by Tricem in the tender offer, the merger will be completed without a vote of holders of shares, in accordance with applicable law. It is anticipated that the merger will occur as promptly as practicable. Remaining public holders of shares will be sent materials to allow them to exchange their shares for U.S.$35.00 per share promptly following the merger.

CEMEX is a leading global producer and marketer of cement and ready-mix products, with operations concentrated in the world's most dynamic cement markets across four continents. CEMEX combines a deep knowledge of the local markets with its global network and information technology systems to provide world-class products and services to its customers, from individual homebuilders to large industrial contractors. For more information, visit www.cemex.com.

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This press release is for informational purposes only. This communication shall not constitute a solicitation of an offer to purchase in any jurisdiction in which such offer, solicitation or sale would be unlawful.

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