(a)      Any insurance company as defined in Section 2(a)(13) of the Securities Act;

(b)       Any investment company registered under the Investment Company Act of 1940, as amended (the “Investment Company Act”), or any business development company as defined in Section 2(a)(48) of the Investment Company Act;

(c)       Any small business investment company licensed by the U.S. Small Business Administration under Section 301(c) or (d) of the Small Business Investment Act of 1958;

(d)      Any plan established and maintained by a state, its political subdivisions, or any agency or instrumentality of a state or its political subdivisions, for the benefit of its employees;

(e)       Any employee benefit plan within the meaning of Title I of the Employee Retirement Income Security Act of 1974;

(f)       Any trust fund whose trustee is a bank or trust company and whose participants are exclusively plans of the types identified in subparagraph (1)(d) or (e) above, except trust funds that include as participants individual retirement accounts or H.R. 10 plans;

(g)      Any business development company as defined in Section 202(a)(22) of the Investment Advisers Act of 1940, as amended (the “Investment Advisers Act”);

(h)      Any organization described in Section 501(c)(3) of the Internal Revenue Code, corporation (other than a bank as defined in Section 3(a)(2) of the Securities Act or a savings and loan association or other institution referenced in Section 3(a)(5)(A) of the Securities Act or a foreign bank or savings and loan association or equivalent institution), partnership, or Massachusetts or similar business trust; and

(i)        Any investment adviser registered under the Investment Advisers Act and

2.       Any dealer registered pursuant to Section 15 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), acting for its own account or the accounts of other Qualified Institutional Buyers, that in the aggregate owns and invests on a discretionary basis at least $10 million of securities of issuers that are not affiliated with the dealer, provided that securities constituting the whole or a part of an unsold allotment to or subscription by a dealer as a participant in a public offering shall not be deemed to be owned by such dealer;

3.       Any dealer registered pursuant to Section 15 of the Exchange Act acting in a riskless principal transaction on behalf of a qualified institutional buyer;

4.       Any investment company registered under the Investment Company Act, acting for its own account or for the accounts of other qualified institutional buyers, that is part of a family of investment companies which own in the aggregate at least $100 million in securities of issuers, other than issuers that are affiliated with the investment company or are part of such family of investment companies. “Family of investment companies” means any two or more investment companies registered under the Investment Company Act, except for a unit investment trust whose assets consist solely of shares of one or more registered investment companies, that have the same investment adviser (or, in the case of unit investment trusts, the same depositor), provided that, for purposes of this subparagraph:

(a)      Each series of a series company (as defined in Rule 18f-2 under the Investment Company Act) shall be deemed to be a separate investment company; and

(b)       Investment companies shall be deemed to have the same adviser (or depositor) if their advisers (or depositors) are majority-owned subsidiaries of the same parent, or if one investment company's adviser (or depositor) is a majority-owned subsidiary of the other investment company's adviser (or depositor);

5.       Any entity, all of the equity owners of which are qualified institutional buyers, acting for its own account or the accounts of other qualified institutional buyers; and

6.       Any bank as defined in Section 3(a)(2) of the Securities Act, any savings and loan association or other institution as referenced in Section 3(a)(5)(A) of the Securities Act, or any foreign bank or savings and loan association or equivalent institution, acting for its own account or the accounts of other qualified institutional buyers, that in the aggregate owns and invests on a discretionary basis at least $100 million in securities of issuers that are not affiliated with it and that has an audited net worth of at least $25 million as demonstrated in its latest annual financial statements, as of a date not more than 16 months preceding the date of sale under the rule in the case of a U.S. bank or savings and loan association, and not more than 18 months preceding such date of sale for a foreign bank or savings and loan association or equivalent institution.

For purposes of the foregoing definition:

7.       In determining the aggregate amount of securities owned and invested on a discretionary basis by an entity, the following instruments and interests shall be excluded: bank deposit notes and certificates of deposit; loan participations; repurchase agreements; securities owned but subject to a repurchase agreement; and currency, interest rate and commodity swaps.

8.       The aggregate value of securities owned and invested on a discretionary basis by an entity shall be the cost of such securities, except where the entity reports its securities holdings in its financial statements on the basis of their market value, and no current information with respect to the cost of those securities has been published.  In the latter event, the securities may be valued at market for purposes of the foregoing definition.

9.       In determining the aggregate amount of securities owned by an entity and invested on a discretionary basis, securities owned by subsidiaries of the entity that are consolidated with the entity in its financial statements prepared in accordance with generally accepted accounting principles may be included if the investments of such subsidiaries are managed under the direction of the entity, except that, unless the entity is a reporting company under Section 13 or 15(d) of the Exchange Act, securities owned by such subsidiaries may not be included if the entity itself is a majority-owned subsidiary that would be included in the consolidated financial statements of another enterprise.

10.       “Riskless principal transaction” means a transaction in which a dealer buys a security from any person and makes a simultaneous offsetting sale of such security to a Qualified Institutional Buyer, including another dealer acting as riskless principal for a Qualified Institutional Buyer.

* * * * * *

“U.S. Person” means:

1.       Any natural person resident in the United States;

2.       Any partnership or corporation organized or incorporated under the laws of the United States;

3.       Any estate of which any executor or administrator is a U.S. person;

4.       Any trust of which any trustee is a U.S. person;

5.       Any agency or branch of a foreign entity located in the United States;

6.        Any non-discretionary account or similar account (other than an estate or trust) held by a dealer or other fiduciary for the benefit or account of a U.S. person;

7.       Any discretionary account or similar account (other than an estate or trust) held by a dealer or other fiduciary organized, incorporated, or (if an individual) resident in the United States; and

8.       Any partnership or corporation if:

(a)        Organized or incorporated under the laws of any foreign jurisdiction; and

(b)       Formed by a U.S. person principally for the purpose of investing in securities not registered under the Securities Act, unless it is organized or incorporated, and owned, by accredited investors (as defined in Rule 501(a) under the Securities Act) who are not natural persons, estates or trusts.

* * * * * *

“Qualified Investor” means:

1.       An individual investor:

(a)        whose investment is not less than $100,000 and is a sophisticated investor (for purposes of this representation, a “sophisticated investor” means a person who has such knowledge and experience in financial, securities, investment and other business matters that he or she is capable of evaluating the merits and risks of the prospective investment and is able to adequately protect his or her own interests); or

(b)       who had an individual income of more than $200,000 in each of the last two calendar years or joint income with his or her spouse in excess of $300,000 in each of those years and reasonably expects to reach the same income level in the current calendar year; or

(c)       who has an individual net worth, or together with his or her spouse a combined net worth, in excess of $1,000,000 (for purposes of this representation, “net worth” means the excess of total assets at fair market value, including home, home furnishings and automobiles, over total liabilities; or

(d)       who is a director, executive officer, general partner or employee of the Offeror;

2.       A private corporation or partnership:

(a)       with its investment not less than $100,000 and each of its directors is a sophisticated investor (for purposes of this representation, a “sophisticated investor” means a person who has such knowledge and experience in financial, securities, investment and other business matters that he or she is capable of evaluating the merits and risks of the prospective investment and is able to adequately protect his or her own interests); or

(b)       that is a corporation, business trust or partnership with total assets in excess of $5,000,000 and each of its equity owners/partners is a sophisticated investor (for purposes of this representation, a “sophisticated investor” means a person who has such knowledge and experience in financial, securities, investment and other business matters that he or she is capable of evaluating the merits and risks of the prospective investment and is able to adequately protect his or her own interests); or

(c)       that is a corporation, business trust or partnership and all of its equity owners/partners meet at least one of the standards set out in paragraph 1 of this definition; and

3.       A public company or institutional investor:

(a)       that is a corporation with a primary listing on a stock exchange which is recognized for this purpose by the BSX; or

(b)       that is a bank, stockbroker, insurance company, investment company, mutual fund or pension fund which is licensed in its home jurisdiction as such.