Joint Filer Information

Title of Security:           Common Stock

Issuer & Ticker Symbol:      ZYGO CORPORATION (ZIGO)

Designated Filer:            MAK Capital One LLC

Other Joint Filers:          MAK Capital Fund LP (the "MAK Capital Fund");
                             Michael A. Kaufman;
                             Paloma International L.P. ("Paloma"); and
                             S. Donald Sussman

Addresses:                   The address of each of MAK Capital Fund and
                             Mr. Kaufman is 590 Madison Ave, 9th Floor,
                             New York, New York 10022.

                             The address of Paloma is Two American Lane,
                             Greenwich, Connecticut 06836.

                             The address of Mr. Sussman is 6100
                             Red Hook Quarter, 18B, Suites C, 1-6,
                             St. Thomas, United States Virgin Islands 00802.


Signatures:


Dated:  June 26, 2009

                            MAK CAPITAL FUND LP
                            By: MAK GP LLC, as General Partner


                                By: /s/ Michael A. Kaufman
                                    ----------------------
                                        Michael A. Kaufman,
                                        Managing Member



                            /s/ Michael A. Kaufman
                            ----------------------
                                Michael A. Kaufman


                            PALOMA INTERNATIONAL L.P.
                                By: Paloma Partners Company L.L.C.,
                                    general partner


                                    By: /s/ Michael J. Berner
                                        ---------------------
                                            Michael J. Berner,
                                            Vice President


                            S. DONALD SUSSMAN


                            By: /s/ Michael J. Berner
                                ---------------------
                                    Michael J. Berner,
                                    Attorney-in-Fact




                                POWER OF ATTORNEY

The undersigned hereby makes, constitutes and appoints each of Michael J. Berner
and  Douglas  W.  Ambrose  as  the  undersigned's  true  and  lawful  authorized
representative,  attorney-in-fact and agent, each with the power individually to
execute for and on behalf of the undersigned and to file with and deliver to the
United States  Securities  and Exchange  Commission  and any other  authority or
party  required or  entitled to receive the same:  (a) any Forms 3, 4 and 5, and
any  amendments  thereto,  in accordance  with Section  16(a) of the  Securities
Exchange Act of 1934,  as amended (the "1934  Act"),  and the rules  promulgated
thereunder;  and  (b) any  Schedule  13D or  Schedule  13G,  and any  amendments
thereto,  on behalf of the undersigned in accordance with Section 13 of the 1934
Act and the rules promulgated thereunder.

The undersigned also hereby grants to each such  attorney-in-fact the full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary and proper to be done in the exercise of any of the rights
and  powers  herein  granted,  hereby  ratifying  and  confirming  all that such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this power
of  attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each of the foregoing  attorneys-in-fact,  in serving in such
capacity  at  the  request  of  the  undersigned,  is  not  assuming  any of the
undersigned's  responsibilities  to comply with  Section 16 or Section 13 or any
other provision of the 1934 Act or the rules promulgated thereunder.

This Power of  Attorney  shall  remain in full force and  effect  until  earlier
revoked  by the  undersigned  in a signed  writing  delivered  to the  foregoing
attorneys-in-fact.

IN WITNESS  WHEREOF,  the  undersigned  has caused  this Power of Attorney to be
executed as of May 9, 2006.

/s/  S. Donald Sussman
- ----------------------
     S. Donald Sussman


                        ACKNOWLEDGEMENT IN NEW YORK STATE

STATE OF CONNECTICUT, COUNTY OF FAIRFIELD ss.:


     On May 9, 2006, before me, the undersigned  personally appeared,  S. Donald
Sussman,  personally  known to me or proved  to me on the basis of  satisfactory
evidence to be the individual whose name is subscribed to the within  instrument
and  acknowledged  to me that he executed the same in his capacity,  and that by
his signature on the instrument,  the  individual,  or the person upon behalf of
which the individual acted, executed the instrument.



                                     /s/  Diane R. Erickson
                                     ----------------------
                                     Diane R. Erickson, Notary Public
                                     (signature and office of individual taking
                                     acknowledgement)