FINAL RESPONSE TO TENARIS' EXCEPTIONS

Dear Bidder,

ToIn respondse theo youreplied comments from you in the proposed exceptions, Eenclosed is the final position from CNOOC tfor Tenaris to Tenaris' exceptions , .

You can use the final response as your reference to determine your position to the subject tender ,. There are nNo responses will be given by us for the proposed exceptions in the attached document if you have any comments to reply to our responses.

Please send us the statement letter stating that that you will comply with all the terms and conditions to the subject tender "or" Yyou cannot comply with all the terms and conditions to the subject,.

We expect to receive this before tomorrow afternoon.