13D Filing: Mangrove Partners and Atlantic Power Corp (AT)

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(b) 1. Sole power to vote or direct vote: 0
2. Shared power to vote or direct vote: 11,324,092
3. Sole power to dispose or direct the disposition: 0
4. Shared power to dispose or direct the disposition: 11,324,092
(c) Mangrove Capital has not entered into any transactions in the Shares during the past sixty (60)
days.
F. Nathaniel August
(a) As of the close of business on July 21, 2017, Mr. August did not directly own any Shares. As a
director of each of Mangrove Partners and Mangrove Capital, Mr. August may be deemed to beneficially own the 11,324,092 Shares
directly owned by Mangrove Master Fund.

Percentage: Approximately 9.8%

(b) 1. Sole power to vote or direct vote: 0
2. Shared power to vote or direct vote: 11,324,092
3. Sole power to dispose or direct the disposition: 0
4. Shared power to dispose or direct the disposition: 11,324,092
(c) Mr. August has not entered into any transactions in the Shares during the past sixty (60) days.

As of the close of
business on July 21, 2017, the Reporting Persons collectively beneficially owned an aggregate of 11,324,092 Shares, constituting
approximately 9.8% of the Shares outstanding.

Each of the Reporting
Persons, as a member of a “group” with the other Reporting Persons for purposes of Rule 13d-5(b)(1) of the Securities
Exchange Act of 1934, as amended (the “Exchange Act”), may be deemed to beneficially own the securities of the Issuer
owned by the other Reporting Persons. The filing of this Schedule 13D shall not be deemed an admission that the Reporting Persons
are, for purposes of Section 13(d) of the Exchange Act, the beneficial owners of any securities of the Issuer he or it does not
directly own. Each of the Reporting Persons specifically disclaims beneficial ownership of the securities of the Issuer reported
herein that he or it does not directly own.

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