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Exhibit 99.1 (INCO LOGO) INCO PROVIDES UPDATE ON KEY PRELIMINARY
FINDINGS TO DATE OF PHASE 2 OF GORO PROJECT REVIEW
_____________________ COMPANY REMAINS OPTIMISTIC ON GORO PROJECT Toronto, May 25, 2004  Inco Limited announced today the key preliminary
findings reached to date as part of Phase 2 of the comprehensive review of its
approximately 85 per cent owned Goro nickel-cobalt project in New Caledonia.
This review, which has proceeded in two phases, began following the decision
made in December 2002 to suspend the project. Phase 2 of our review has progressed well, thanks to the skills and the
experience of our project review teams, said Incos Chairman and CEO Scott
Hand. Weve made good progress toward confirming an operation that will add
value to the company, will be efficient and low-cost and meet relevant
environmental health and safety standards and will represent a significant
contributor to New Caledonia. The Phase 2 review is currently expected to be completed in the late summer of
2004. As previously indicated, this Phase has involved a structured process to
further develop opportunities to reduce the project capital cost estimate that
had been identified in the first phase of the project review completed in July
2003. In addition, Phase 2 includes the development of an updated project cost
control estimate, an updated project schedule and an optimized and clearly
defined scope and execution plan for the project as well as a value improvement
program and continuation of appropriate engineering work with the assistance of
the joint venture of the SNC-Lavalin and Foster Wheeler organizations and other
firms retained to assist in this review. As a result of the Phase 2 review, the projects preliminary capital cost
estimate, taking into account the expected non-cash charge discussed below, has
been reduced to approximately $1.85 billion (U.S.), within a plus 20 per cent
to minus 5 per cent reliability range. This preliminary estimate is within
approximately three per cent of the $1.8 billion (U.S.) capital cost estimate
objective for the project that Inco had established in August 2003. This
updated estimate includes the favourable impact of approximately $500 million
(U.S.) in reductions in the capital cost estimate, offset by approximately $250
million (U.S.), relating principally to unfavourable currency adjustments in
view of changes in exchange rates associated with certain expenditures which
would be expected




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2 to be incurred in Australian dollars, Euros and certain other currencies and
cost escalation in construction materials. We have developed a preliminary cost estimate that shows we continue to move
in the right direction to achieve our goal of a viable project, Mr. Hand
added. As a result of the progress made to date, weve enhanced the projects
overall operability and increased its production capacity. At a capital cost
of U.S. $1.85 billion and using long-term prices for nickel of U.S. $3 a pound and
U.S. $7 a pound for cobalt, the project returns would meet our long-term
after-tax weighted average cost of capital of 9 to 10 per cent, Mr. Hand
noted. While we still have a number of key milestones to be met, I remain
very optimistic that we
will reach a decision to proceed later this year. The Phase 2 review to date has also reduced Goros planned process plant
footprint by approximately 50 per cent from the original plan. This development
will enhance the plants operability and maintainability, and also result in
considerable savings on concrete, structural steel, piping and electrical
requirements. In addition, this phase has identified certain process
improvements, including a move to direct heating from indirect heating of the
ore feed for the process plant autoclaves. The work undertaken to date as part of this Phase 2 review has also resulted in
an increase in the nameplate annual capacity for the planned process
plant, from approximately 55,000 tonnes of nickel and 4,500 tonnes of cobalt to
approximately 60,000 tonnes to nickel and 5,100 tonnes of cobalt. The Phase 2
review will continue to evaluate opportunities to increase the nameplate
capacity further based upon appropriate incremental capital investments. As one of the worlds best undeveloped orebodies, Goro is a very key part of
our growth strategy in nickel and has the clear capabilities to be expanded
significantly beyond its initial nameplate capacity in the future, Mr. Hand
noted. We intend to continue to work hard to meet the growing needs of our
customers. The principal changes from the Phase 2 review in the planned Goro project
configuration, moving to direct heating of the ore feed and other
changes intended to reduce the capital cost estimate and enhance the operating
efficiency of the planned process plant and the process itself are expected to
result in a material non-cash charge. As a result of such changes, capitalized
expenditures incurred to date in the range of $180 to $210 million (U.S.) are
currently anticipated to be written off as of the end of the second quarter of
2004. These changes have meant that certain expenditures, principally
engineering and related work associated with the original project configuration
and equipment purchased for the indirect heating of ore feed, no longer would
have any value for the project or otherwise. It is currently expected that the
precise amount of this non-cash charge will be




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3 finalized by the end of the second quarter of 2004 and that there will not be
any substantial difference between a pre-tax and after-tax amount. We are managing to increase production and efficiency in a plant with a
significantly smaller footprint, without cutting any corners in the areas that
will produce revenue, said Peter Jones, Incos President and Chief Operating
Officer. Even as we reduced the projects cost, we have been very careful not
to compromise its design, Mr. Jones noted. In fact, weve made a number of design enhancements,
particularly with respect to the engineering of the process, and environmental
improvements. The Phase 2 review has also included an evaluation of the project schedule.
Taking into account the additional time required to complete the Phase 2 review
beyond what Inco had initially projected, it is currently expected that,
assuming that a decision to restart the project were made in October 2004,
process plant commissioning would start sometime in early 2007, with initial
plant start-up around mid-2007. Completing our review in the right way has
taken longer than anticipated, but it has allowed us to identify important
improvements and to develop a more reliable project, indicated Mr. Jones. Well
look for ways to improve on this schedule but only if we can ensure the proper
construction and start-up of the plant. Since early 2004 certain preliminary mining and civil construction work at the
Goro site at a cost of about $6 million (U.S.) has been
completed and, during
the balance of the Phase 2 review, Inco expects to undertake certain additional
engineering and other work at an anticipated total cost of approximately $25
million (U.S.). Inco has continued its discussions with the French Government covering the $350
million (U.S.) in tax advantaged financing which the French Government had
earlier agreed in principle to provide to the project. These discussions
continue to examine ways in which the French Government can provide additional
financial support directly or indirectly to the project, including
support for a power
generating facility to be constructed in New Caledonia by a third party which
would meet the Goro projects anticipated external power requirements. Inco and the Goro project company, Goro Nickel S.A., have also continued
discussions with the Japanese consortium led by Sumitomo Metal Mining Co., Ltd.
concerning their interest in acquiring up to a 25 per cent interest in the Goro
project. Inco and Goro Nickel currently expect that negotiations with this consortium concerning the terms and conditions of its
future participation in the project will restart by the end of the second
quarter of 2004. Inco and Goro Nickel continue to make progress in developing a good neighbour
agreement that will set out Goro Nickels commitments to local communities in
New Caledonia. We want to ensure that local communities benefit from this
project in terms




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4 of employment, training programs, and business and service development
opportunities, said Mr. Jones. We will also explore ways for community members to serve as
advisors on key aspects of our operations, such as environmental
matters. In addition to the satisfactory completion and results of the Phase 2 review,
the key milestones to be met to enable Inco to be in a position to make a
decision in the late September  October 2004 period to proceed with the
project include (1) having achieved sufficient progress on all
required permits in New Caledonia and the good neighbour agreement
and having reached other appropriate understandings or arrangements with local
labour unions and other key stakeholders in New Caledonia to enable any restart
of the project, including construction, to proceed on a basis that avoids any
potential labour or other disruptions, (2) finalizing the terms of the
tax-advantaged financing and other support to be provided to the project by the
French Government and (3) reaching a satisfactory agreement on the disposition
of the interest in Goro Nickel held by the French Government agency, Bureau de
Recherches Géologiques et Minières, as part of a required realignment of the
equity ownership in the project to enable a new partner to be brought into the
project and provide for New Caledonias equity participation in Goro. We believe that we can have a project which is economically feasible and which
can be implemented in a financially prudent manner, Mr. Hand added. Major
projects like Goro face significant challenges but we must and will get it
right and this remains our clear and firm objective. Access to Webcast As previously announced, interested investors can listen to our presentation on
the update on the key preliminary findings to date of Phase 2 of the Goro project
review on a live, listen-only basis, or access the archival webcast or the
recording of the presentation through the Internet or by calling the toll-free
telephone call in North America as indicated below. The presentation is scheduled for May 25, 2004 beginning at 9:00 a.m. (Toronto
time) and can be accessed by visiting the website of a third-party webcasting
service we will be using, Canada NewsWire Ltd., at
www.newswire.ca/webcast, at
least five minutes before the start of the presentation. Slides or other
statistical information to be used for the presentation can be accessed and
will be available for online viewing through www.newswire.ca/webcast on the
event title or through our website, www.inco.com, by clicking
on the Latest Presentations link on the homepage. The archival webcast of the presentation can be accessed via the Internet
through www.newswire.ca/webcast. A recording of the presentation can be
listened to until 11:59 p.m. (Toronto time) on June 8, 2004 by dialing
1-800-558-5253 in North America and by




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5 entering the reservation number 21196019. This recording is also available
outside North America by dialing 416-626-4100. This news release contains forward-looking statements regarding the Company and
its Goro nickel-cobalt project, including capital cost estimates and targets,
project nameplate capacity, changes in project configuration and certain
aspects of the process to produce nickel and cobalt, resumption of certain
work, key milestones relating to the project schedule, the amount of an
anticipated non-cash charge, returns on investment, anticipated sources of
financing, completion of project reviews and when certain decisions to proceed
would be made. Actual results and developments may differ materially from
those contemplated by these statements depending on, among others, such key
factors as business and economic conditions in the principal markets for the
Companys products, the results of further study concerning the appropriate
amount of the anticipated non-cash charge, the supply and demand for nickel and
other metals, the completion and results of the second phase of the review of
the capital costs, scope, schedule, and other key aspects of the Goro project,
the timing of receipt of all necessary permits and regulatory approvals,
engineering and construction timetables, and the necessary financing plans,
including decisions of the French Government, and arrangements for, and joint
venture, partner or similar investments and other agreements and arrangements
associated with, the Goro project. - 30 - IN

May 25, 2004 For further information:Media Relations:
    
    Steve Mitchell (416) 361-7950Investor Relations:
    
    Sandra Scott (416) 361-7758or www.inco.com