This excerpt taken from the IOSP DEF 14A filed Mar 31, 2008.
3.2 Limits on eligibility
Notwithstanding any provisions of the Plan to the contrary, no Employee shall be granted an option under this Part B of the Plan if:
immediately after the grant, such Employee (or any other person whose stock would be attributed to such Employee pursuant to Section 424(d) of the Code) would own capital stock
of the Company and/or hold outstanding options to purchase stock possessing five percent (5%) or more of the total combined voting power or value of all classes of stock of the Company or of any subsidiary of the Company, or
such option would permit his or her rights to purchase stock under all employee stock purchase plans (described in Section 423 of the Code) of the Company and its Subsidiaries
to accrue at a rate where the Fair Market Value of such stock (determined at the time such option is granted) would exceed Twenty-Five Thousand Dollars ($25,000) for each calendar year in which such option is outstanding at any time (or such other
limit as shall be prescribed by the Code from time to time).
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