January 5, 2000

CEMEX Mexico, S.A. de C.V., successor to TOLMEX, S.A. de C.V., announced today that it has commenced a cash tender offer for all its outstanding 8 3/8% Notes due November 1, 2003 (the "Notes").

CEMEX Mexico has $175.4 million principal amount of the Notes outstanding. Concurrently with the tender offer, CEMEX Mexico is soliciting consents from the holders of the Notes to amend the indenture under which the Notes were issued.

The tender offer is conditioned upon, among other things, obtaining the consents to the proposed amendments from a majority in aggregate principal amount of the outstanding Notes. Holders tendering their Notes prior to the consent expiration date will be required to consent to certain proposed amendments to the indenture governing the Notes, which will eliminate certain covenants relating to the Notes. Holders may not consent without also tendering their Notes.

The tender offer will expire at 12:00 noon, New York City time, on Wednesday, February 2, 2000, unless extended or earlier terminated. The consent solicitation will expire at 12:00 noon, New York City time, on Friday, January 14, 2000, unless extended or earlier terminated.

The total consideration payable for each $1,000 principal amount of Notes validly tendered and not revoked on or prior to the expiration of the tender offer will be $1,000. Of the total consideration, $980 will constitute the tender purchase price and $20 will represent the consent payment. Holders who tender their Notes after the consent expiration date will not receive the consent payment. Holders who validly tender Notes will also be paid accrued and unpaid interest up to, but not including, the date of payment for the Notes.

The dealer manager for the tender offer and the solicitation agent for the consent solicitation is Chase Securities Inc. Copies of CEMEX Mexico´s Offer to Purchase and Consent Solicitation Statement containing the terms and conditions of the tender offer and consent solicitation, dated January 3, 2000, can be obtained from D.F. King & Co., Inc, the information agent.

CEMEX Mexico, a leading Mexican cement and ready-mix concrete producer, is 97.3% owned by CEMEX. Founded in 1906, CEMEX is one of the three largest cement companies in the world with approximately 65 million metric tons of production capacity. Through operating subsidiaries positioned in four continents, CEMEX is engaged in the production, distribution, marketing and sale of cement, ready-mix concrete, aggregates and clinker. In addition, CEMEX is the world´s leading producer of white cement and the world´s largest trader of cement and clinker.