Exhibit 99.2

JOINT FILERS’ SIGNATURES

HOV CAPITAL III LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager
ADESI 234 LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager
HOF 2 LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager
HOVS LLC
By:	/s/ James Reynolds
Name:	James Reynolds
Title:	Manager

HOV SERVICES LTD
By:	/s/ Vik Negi
Name:	Vik Negi
Title:	Director
HANDSON FUND 4 I LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager
HANDSON GLOBAL MANAGEMENT, LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager
HANDSON 3, LLC
By:	/s/ Par Chadha
Name:	Par Chadha
Title:	Manager