QuickLinks -- Click here to rapidly navigate through this documentAluminum Corporation of China
No. 62 North Xizhimen Street
100082 Beijing, China
Dear Sirs:
Re: Peru Copper Inc.
We understand that you intend to make an Offer to acquire all of the outstanding common shares of Peru Copper Inc. ("PCI") for cash consideration of Cdn. $6.60 per share. The undersigned acknowledges that we will tender the shares of PCI beneficially owned by us (as outlined in Schedule A attached hereto) to the Offer. Notwithstanding the foregoing, in the event a third party proposes a transaction (a "Competing Offer") to all shareholders of PCI pursuant to which it will acquire shares of PCI and the value of the consideration per share offered under such Competing Offer is in our opinion greater than the value of the consideration per share payable pursuant to the Offer, we reserve the right to tender to the Competing Offer.
Per: |
/s/ GEORGE R. IRELAND
George R. Ireland
Managing Member, CEO, CIO
Geologic Resource Partners, LLC |
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Schedule A — Ownership of Securities
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| Name of Registered Owner | | Number and Class of Securities |
Goldman Sachs Inc. f/b/o Geologic Resource Fund L.P.
Name of Shareholder |
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Shareholder's Owned Shares:
327,272 Common Shares |
n/a
Name of Holder of Options |
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Options with respect to Shareholder's Option Shares:
n/a Common Shares |
Schedule A — Ownership of Securities
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| Name of Registered Owner | | Number and Class of Securities |
Goldman Sachs Inc. f/b/o Geologic Resource Fund Ltd.
Name of Shareholder |
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Shareholder's Owned Shares:
923,428 Common Shares |
n/a
Name of Holder of Options |
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Options with respect to Shareholder's Option Shares:
Common Shares |
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Schedule A — Ownership of SecuritiesSchedule A — Ownership of Securities
