Exhibit 99.1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G dated February 13, 2015 (including amendments thereto) with respect to the Common Stock of Mastech Holdings, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
Dated: February 13, 2015 |
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| AB Value Partners, L.P. | ||
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| By: | AB Value Management LLC General Partner | |
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| By: | /s/ David Polonitza | |
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| Name: | David Polonitza |
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| Title: | Chief Operating Officer |
| AB Value Management LLC | ||
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| By: | /s/ David Polonitza | |
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| Name: | David Polonitza |
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| Title: | Chief Operating Officer |
| /s/ David Polonitza |
| Name: David Polonitza as attorney-in-fact for Andrew Berger |
