EXHIBIT 99.1 Freeport-McMoRan Inc. New Orleans, Louisiana Confidential July 25, 1997 Robert E. Fowler, Jr. President and Chief Executive Officer IMC Global Inc. 2100 Sanders Road Northbrook, IL 60062-6146 Dear Bob: Attached is a term sheet setting forth the principal terms and conditions of our proposal for a stock merger (the "Merger") of Freeport-McMoRan Inc. and IMC Global Inc. If you indicate your acceptance of the attached term sheet by executing in the space provided below, this letter, together with the term sheet, will constitute the mutual nonbinding statement of the intention of Freeport-McMoRan Inc. and IMC Global Inc. to effect the Merger. There will be a period commencing on the date that this letter has been executed by you and ending on August 31, 1997, during which (i) each of the parties will complete its due diligence and evaluation of the other party and (ii) the parties will use their reasonable good faith efforts to negotiate a mutually acceptable definitive agreement to effect the Merger. Except for the obligations set forth in the foregoing sentence, neither this letter nor the term sheet shall be deemed to be a binding agreement of the parties nor shall such instruments create any legal obligation on behalf of Freeport-McMoRan Inc., IMC Global Inc. or any of their respective representatives. Any such agreement shall be created solely by a written, executed and delivered definitive agreement. Please confirm your acceptance of our proposal by executing two copies of this letter and returning a fully executed copy to Freeport-McMoRan Inc. We would intend to mutually publicly announce the proposed transaction immediately thereafter. It is our expectation that the parties would enter into a definitive agreement within one month after your execution and return of this letter, that the necessary stockholders meetings will be held as soon as practicable thereafter and that the closing will take place as soon as practicable after such meetings. Freeport-McMoRan Inc. /s/Rene L. Latiolais ------------------------- By: Rene L. Latiolais Agreed and Accepted this 25 day of July, 1997 IMC Global Inc. /s/ Robert E. Fowler, Jr. By: Robert E. Fowler, Jr. Attachment PROPOSAL OF MERGER OF FREEPORT-MCMORAN INC. AND IMC GLOBAL INC. SUMMARY OF KEY TERMS JULY 1997 Basic Transaction: A stock-for-stock non-taxable merger (the "Merger") of Freeport-McMoRan Inc. with IMC Global Inc. (or one of its subsidiaries) in a transaction accounted for as a purchase. IMC Global Inc. will be the surviving public company. Freeport-McMoRan Inc. shareholders will receive 0.90 share of IMC Global Inc. for each Freeport-McMoRan Inc. share (the "Exchange Ratio"). In addition, for each Freeport-McMoRan Inc. share there will be issued a warrant entitling the holder to acquire one-third share of IMC Global Inc. at an exercise price equal to $44.50 per share. Such warrants will expire on the third anniversary of the Merger. IMC Global Inc. will use its reasonable good faith efforts to list the warrants on the NYSE. In addition, prior to consummation of the Merger, the Freeport McMoRan Resource Partners, Limited Partnership sulphur and Main Pass oil business, as well as IMC Global Inc.'s interests in the Main Pass 299 Joint Ventures, will be contributed to a newly formed subsidiary (Newco) of Freeport McMoRan Resource Partners, Limited Partnership, with the shares of Newco to be distributed to Freeport McMoRan Resource Partners, Limited Partnership public unitholders and Freeport-McMoRan Inc. shareholders. No consideration will be paid to IMC Global Inc. for the contribution of its Main Pass 299 Joint Ventures interest to Newco. Board Governance: The Board of IMC Global Inc. will be increased by three and James Robert Moffett, Rene L. Latiolais and one current member of the Freeport-McMoRan Inc. Board selected by it will join the IMC Global Inc. Board. Management: At discretion of IMC Global Inc. Board, James Robert Moffett and Rene L. Latiolais will retire from Freeport-McMoRan Inc. and receive benefits established by existing plans. Management Stock Options and Bonuses: 1997 Freeport-McMoRan Inc. management bonuses under existing plans will be protected. Value of stock options will be preserved but transferred to IMC Global Inc. stock. The value of Freeport-McMoRan Inc.'s current long-term performance incentive plan will be preserved. Severance and other employee termination costs of Freeport-McMoRan Inc. employees will not be borne, directly or indirectly, by Freeport-McMoRan Inc., IMC Global Inc. or Freeport McMoRan Resource Partners, Limited Partnership. Freeport-McMoRan Inc./Freeport McMoRan Resource Partners, Limited Partnership G&A Savings: Current 1997 Freeport-McMoRan Inc./Freeport McMoRan Resource Partners, Limited Partnership G&A level is approximately $40.5 million, not including IMC Global Inc. allocations of approximately $18 million. Prior to closing, Freeport-McMoRan Inc./Freeport McMoRan Resource Partners, Limited Partnership will effect future savings of G&A in the following approximate amounts through absorption by Newco, the new Sulphur/Main Pass oil entity, employee severances, termination of administrative services agreements with FM Services Co. and Termination or expiration of other Freeport-McMoRan Inc. commitments: 1998 1999 2000 2001 2002 2003 2004 ------ ------ ------ ------ ------ ------ ------ (in millions) $33 34.5 36 37.5 38.5 38.5 40.5 IMC Global Inc. will be required to incur costs for administering Freeport McMoRan Resource Partners, Limited Partnership, which now total approximately $1.5 million annually. Confidentiality: Standard confidentiality terms. "Deal Protection Provisions": Conventional mutual no shop provisions with fiduciary outs to be included in definitive agreement. Other Contractual Provisions: Conventional representations & warranties, covenants and conditions appropriate for public company mergers to be included in definitive agreement. Covenants applicable between signing of a definitive agreement and closing of the transaction will preclude out-of-the-ordinary- course transactions such as acquisitions. Other: Exclusive and confidential negotiation period until August 31. Due diligence subject to mutual confidentiality agreements. Transaction subject to: (i) the negotiation, Board approval, execution and delivery of a definitive merger agreement; (ii) approval by Freeport-McMoRan Inc. and IMC Global Inc. stockholders; (iii) the expiration or early termination of all applicable waiting periods under the Hart-Scott-Rodin Act and receipt of any necessary regulatory and third party consents and approvals and (iv) satisfaction or waiver of other closing conditions specified in the written agreement. Proposed Timetable: Consistent with that prepared by IMC Global Inc. in September 1996, subject to possible adjustment to accommodate distribution of Newco.