Document:

exv10w1

	 	 	 	 	 

EXHIBIT 10.1

Commercial Barge Line Company

2011 Annual Incentive Plan

Corporate Employees

This Commercial Barge Line Company 2011 Annual Incentive Plan for Corporate Employees sets
forth the goals and administrative guidelines that reflect Commercial Barge Line Company’s (the
“Company”) expectations for performance and accountability of the leadership team. The performance
goals will be measured based on the Commercial Barge Line Company results as reported in its
audited financials for 2011.

For 2011, the weighting of the Financial Measures is:

	 	•	 	EBITDAR: 75%
	 
	 	 	 	Earnings before interest, taxes, depreciation, amortization and restructuring (“EBITDAR”) is
used to determine the financial performance from operations.

For 2011, the weighting of the Business Goals is:

	 	•	 	Safety: 12.5%
	 
	 	 	 	It is critical that we continue to provide a safe environment for all employees. Safety
will be measured by the incident rate which is defined as the number of recordable injuries
× 200,000 divided by the number of employee hours worked. This measurement/goal includes
the performance of our sub-contractors.
	 
	 	•	 	Environmental Safety (Releases): 6.25%
	 
	 	 	 	We are committed to conducting our businesses in an environmentally responsible and
proactive manner, for both the safety of our employees as well as the communities in which
we operate. Environmental Safety will be measured by the number of releases and the number
of gallons released as reported to the NRC (National Response Center). This
measurement/goal includes the performance of our sub-contractors.
	 
	 	•	 	Allisions, Collisions and Groundings (ACGs): 6.25%
	 
	 	 	 	The number of allisions, collisions and groundings (ACGs) per million barge miles. This
metric excludes ACGs and barge miles from outside towing and chartered boats.

Plan Administration

Eligibility Criteria

	 	•	 	Full-time active “Corporate” employees of Commercial Barge Line Company and its
affiliates — this applies to salaried non-represented employees that are considered
“Corporate”. This plan does not apply to employees of the Professional Services segment of
our business, or employees covered by another Company or affiliate AIP program (Hourly,
Transportation Services, Jeffboat and/or Sales/Marketing).
	 
	 	•	 	Hire date on or before September 30, 2011.
	 
	 	•	 	Employed by the Company or one of its affiliates at time the incentive awards are paid.
	 
	 	•	 	Employee is in good standing with the Company and individual performance rated at a
satisfactory level or higher.
	 
	 	•	 	Employees that change eligibility levels or AIP plans during the year will have their
award prorated based on the base salary earned and/or service at each award level/plan.

Award Opportunities

Each performance measure has a corresponding percentage of the target award opportunity. Some
incentive can still be earned if performance is close to, but falls short of the goals. Also,
higher incentives may be earned if goals are exceeded. Therefore, if actual performance falls between any of the defined levels,
the award opportunities will be calculated

Corporate

 

 

proportionately. The calculations will be based on GAAP
financials unless an exception (plus or minus) is approved by the Compensation Committee.

	 	•	 	Minimum performance (typically 80% attainment) pays 50% of the target opportunity.
	 
	 	•	 	Target performance (100% attainment) pays 100% of target opportunity.
	 
	 	•	 	Superior performance (typically 150% attainment) pays 150% of the target opportunity.

If the minimum performance level for EBITDAR is not met, the Business Goal metrics cannot pay above
target levels.

Award Calculations

The total amount of awards will be fixed at the end of the year and calculated based on the
following formula for employees employed on December 31, 2011:

2011 Base Salary Earnings × Target Award Opportunity × Performance Score for Each Goal.

Actual base salary earnings are defined as only the base compensation earned from January 1 through
December 31. In other words, the AIP payout will be prorated based on actual salary earnings for
the year. The overall performance score is determined by multiplying the achievement levels of the
financial and business objectives by their respective weighting and added together.

The awards may be adjusted upward or downward based on performance. However, the net of these
adjustments may not increase the total bonus award.

Timing of Payment

Earned disbursement of the 2011 bonus amounts will occur after the 2011 financial results have been
tabulated, outside auditors have finished their audit and the Compensation Committee has signed-off
on the payment; estimated to be completed by March 15, 2012. In all events, bonus amounts will be
paid no later than December 31, 2012, with respect to the 2011 bonus program.

Administration

The Compensation Committee designated by the Board of Directors of the Company has the full power,
authority and discretion to construe, interpret and administer this bonus program. The Compensation
Committee may delegate this authority to any appropriate person or persons and such delegates shall
have all the powers the Compensation Committee would have if it had acted itself. As a condition of
eligibility to participate in this bonus program, a participant must accept that all determinations
of the Compensation Committee or any of its delegates will be final, conclusive and binding.

Amendment

The Board of Directors or the Compensation Committee, each in its sole discretion, may, at any time
with or without notice, amend, modify, suspend or terminate this bonus program, including the right
to suspend or eliminate some or all payments under this bonus program at any time.

Assignment

Payments under this bonus program may not be assigned or alienated.

Applicable Law

This document shall be governed by the laws of the State of Indiana.

No Employment Rights

Nothing contained in this bonus program shall be construed as a contract of employment between the
Company or its affiliates and a participant or as a right of any participant to be continued in the
employment of the Company or its affiliates, or as a limitation of the right of the Company or its
affiliates to discharge any of its employees with or without cause.

CorporateExhibit 10.1

Exhibit 10.1

EXECUTION VERSION

STOCK PURCHASE AGREEMENT

by and among

PERMA-FIX ENVIRONMENTAL SERVICES, INC.,

(“PESI”)

HOMELAND SECURITY CAPITAL CORPORATION,

(“Parent”)

and

SAFETY & ECOLOGY HOLDINGS CORPORATION

(the “Company”)

for the purchase and sale of

all of the capital stock of the Company

dated as of

July 15, 2011

 

 

 

TABLE OF CONTENTS

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE I. PURCHASE AND SALE
	 	 	2	 
	 
	 	 	 	 
	1.1 The Acquisition
	 	 	2	 
	1.2 Purchase Price
	 	 	2	 
	1.3 Payment of Purchase Price
	 	 	2	 
	1.4 Estimated Net Working Capital Adjustment
	 	 	5	 
	1.5 Closing Net Working Capital Adjustment
	 	 	6	 
	1.6 Intentionally Omitted
	 	 	7	 
	1.7 Closing; Closing Transactions
	 	 	7	 
	 
	 	 	 	 
	ARTICLE II. REPRESENTATIONS AND WARRANTIES REGARDING PARENT AND THE COMPANY
	 	 	8	 
	 
	 	 	 	 
	2.1 Organization and Qualification; Company Subsidiaries
	 	 	8	 
	2.2 Authority; Binding Nature of Agreement; Approval; Governing Documents
	 	 	8	 
	2.3 Capitalization
	 	 	9	 
	2.4 No Violation; Consents
	 	 	10	 
	2.5 Compliance With Laws
	 	 	11	 
	2.6 Permits
	 	 	11	 
	2.7 Certain Business Practices
	 	 	11	 
	2.8 Financial Statements
	 	 	12	 
	2.9 Absence of Certain Changes or Events
	 	 	13	 
	2.10 Absence of Undisclosed Liabilities
	 	 	13	 
	2.11 Litigation
	 	 	14	 
	2.12 Material Contracts
	 	 	14	 
	2.13 Customers and Suppliers
	 	 	16	 
	2.14 Employee Benefit Plans
	 	 	16	 
	2.15 Properties
	 	 	21	 
	2.16 Taxes
	 	 	22	 
	2.17 Environmental Matters
	 	 	24	 
	2.18 Labor Matters; Employees
	 	 	26	 
	2.19 Affiliate Transactions
	 	 	27	 
	2.20 Disclosure Controls and Procedures
	 	 	28	 
	2.21 Insurance
	 	 	28	 
	2.22 Intellectual Property
	 	 	29	 
	2.23 Derivative Transactions and Hedging
	 	 	30	 
	2.24 Bank Accounts, Letters of Credit and Powers of Attorney
	 	 	30	 
	2.25 Disclosure of Material Information
	 	 	30	 
	2.26 Brokers
	 	 	31	 
	2.27 Accounts Receivable
	 	 	31	 
	2.28 PESI SEC Filings
	 	 	31	 

 

i

 

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE III. RESERVED
	 	 	31	 
	 
	 	 	 	 
	ARTICLE IV. REPRESENTATIONS AND WARRANTIES REGARDING PESI
	 	 	31	 
	 
	 	 	 	 
	4.1 Organization and Qualification; Subsidiaries
	 	 	31	 
	4.2 Governing Documents
	 	 	32	 
	4.3 Capitalization
	 	 	32	 
	4.4 Authority; Due Authorization; Binding Agreement; Approval
	 	 	32	 
	4.5 No Violation; Consents
	 	 	33	 
	4.6 Compliance
	 	 	33	 
	4.7 SEC Filings; Financial Statements
	 	 	34	 
	4.8 Absence of Certain Changes or Events
	 	 	34	 
	4.9 Tax Returns, Payments and Elections
	 	 	34	 
	4.10 Brokers
	 	 	35	 
	4.11 Litigation
	 	 	35	 
	4.12 Disclosure of Material Information
	 	 	35	 
	4.13 Information Statement
	 	 	35	 
	 
	 	 	 	 
	ARTICLE V. COVENANTS
	 	 	36	 
	 
	 	 	 	 
	5.1 Interim Operations of the Company
	 	 	36	 
	5.2 Acquisition Proposals
	 	 	40	 
	5.3 Access to Information and Properties
	 	 	43	 
	5.4 Further Action; Commercially Reasonable Efforts
	 	 	45	 
	5.5 Information Statement
	 	 	46	 
	5.6 Notification of Certain Matters
	 	 	47	 
	5.7 Publicity
	 	 	47	 
	5.8 Stock Exchange Listing
	 	 	47	 
	5.9 Employee Benefits
	 	 	47	 
	5.10 Tax Matters
	 	 	48	 
	5.11 No Takeover Statute Applies
	 	 	50	 
	5.12 Parent and Company Expenses
	 	 	51	 
	5.13 Non-Solicitation of Employees
	 	 	51	 
	5.14 Non-Solicitation of Customers
	 	 	51	 
	5.15 Non-Compete
	 	 	51	 
	5.16 Confidential Information
	 	 	52	 
	5.17 Remedies and Injunctive Relief
	 	 	52	 
	5.18 Acknowledgment
	 	 	53	 
	5.19 Disclosure Updates
	 	 	54	 
	5.20 Liabilities of Company and the Company Subsidiaries
	 	 	54	 
	5.21 Management Investors
	 	 	54	 
	5.22 Parent Required Vote
	 	 	55	 
	5.23 Parent Required Votes by Parent Stockholders; Shareholder Agreements
	 	 	55	 
	 
	 	 	 	 
	ARTICLE VI. CONDITIONS
	 	 	55	 
	 
	 	 	 	 
	6.1 Conditions to Each Party’s Obligation to Close the Acquisition
	 	 	55	 
	6.2 Conditions to Parent’s Obligation to Close the Acquisition
	 	 	56	 
	6.3 Conditions to PESI’s Obligations to Close the Acquisition
	 	 	58	 

 

ii

 

	 	 	 	 	 
	 	 	Page	 
	 
	 	 	 	 
	ARTICLE VII. TERMINATION
	 	 	61	 
	 
	 	 	 	 
	7.1 Termination
	 	 	61	 
	7.2 Effect of Termination
	 	 	62	 
	 
	 	 	 	 
	ARTICLE VIII. INDEMNIFICATION
	 	 	63	 
	 
	 	 	 	 
	8.1 Indemnification of PESI
	 	 	63	 
	8.2 Indemnification of Parent
	 	 	63	 
	8.3 Losses
	 	 	64	 
	8.4 Indemnification Procedures
	 	 	64	 
	8.5 Limitations on Indemnification
	 	 	65	 
	8.6 Exclusive Remedy
	 	 	67	 
	8.7 Application of Escrow Amount
	 	 	67	 
	 
	 	 	 	 
	ARTICLE IX. MISCELLANEOUS
	 	 	67	 
	 
	 	 	 	 
	9.1 Fees and Expenses
	 	 	67	 
	9.2 Amendment; Waiver
	 	 	68	 
	9.3 Offsets
	 	 	69	 
	9.4 Notices
	 	 	69	 
	9.5 Rules of Construction and Interpretation; Certain Definitions
	 	 	70	 
	9.6 Headings; Disclosure Letters
	 	 	75	 
	9.7 Counterparts
	 	 	75	 
	9.8 Entire Agreement
	 	 	75	 
	9.9 Severability
	 	 	76	 
	9.10 Governing Law
	 	 	76	 
	9.11 Assignment
	 	 	76	 
	9.12 Parties in Interest
	 	 	76	 
	9.13 Intentionally Omitted
	 	 	77	 
	9.14 Jurisdiction
	 	 	77	 

Exhibit List:

	 	 	 	 	 
	Exhibit A = Promissory Note
	 	 	 	 
	Exhibit B = Escrow Agreement
	 	 	 	 
	Exhibit C = Representations, Warranties and Covenants as to Payoff Shares
	 	 	 	 
	Exhibit D = Registration Rights Agreement
	 	 	 	 
	Exhibit E = Subscription Agreement
	 	 	 	 
	Exhibit F = Leichtweis Employment Agreement
	 	 	 	 

 

iii

 

TABLE OF DEFINED TERMS 

	 	 	 
	Defined Term	 	Location
	Acceptable Confidentiality Agreement
	 	Section 5.2(b)
	Acquisition
	 	Section 1.1
	Acquisition Agreement
	 	Section 5.2(d)
	Acquisition Proposal
	 	Section 5.2(f)
	Affiliates
	 	Section 5.1(n)
	Agreement
	 	Preamble
	Annual Report Purposes
	 	Section 5.3(b)
	Audited Financial Statements
	 	Section 6.3(v)
	Business
	 	Preamble
	Business Day
	 	Section 9.5(d)(i)
	Cash Consideration
	 	Section 1.2(a)
	CERCLA
	 	Section 2.17(a)
	Claim
	 	Section 9.5(d)(ii)
	Cleanup
	 	Section 9.5(d)(iii)
	Closing
	 	Section 1.7
	Closing Date
	 	Section 1.7
	Closing Net Working Capital Amount
	 	Section 1.5(a)
	Closing Statement
	 	Section 1.5(a)
	COBRA
	 	Section 2.14(j)
	Code
	 	Section 9.5(d)(iv)
	Commercially Reasonable Efforts
	 	Section 9.5(d)(v)
	Company
	 	Preamble
	Company 401(k) Plan
	 	Section 5.9(b)
	Company Board
	 	Preamble
	Company Common Stock
	 	Preamble
	Company Credit Agreement
	 	Section 9.5(d)(vi)
	Company Employee Benefit Plan
	 	Section 2.14(a)
	Company IP
	 	Section 9.5(d)(vii)
	Company Material Contract
	 	Section 2.12(a)
	Company Series A Preferred
	 	Preamble
	Company Shares
	 	Preamble
	Company Stock Plans
	 	Section 2.14(o)
	Company Subsidiary/Subsidiaries
	 	Section 2.1(b)
	Confidentiality Agreement
	 	Section 7.2
	Continuing Employees
	 	Section 5.9(a)
	Current Assets
	 	Section 1.4(b)
	Current Liabilities
	 	Section 1.4(c)
	Default Date
	 	Section 1.3.2
	Disclosure Update
	 	Section 5.19
	DGCL
	 	Section 5.11
	DOL
	 	Section 2.14(c)
	Employment and Withholding Taxes
	 	Section 9.5(d)(viii)
	Environmental Laws
	 	Section 2.17(a)
	Environmental Permits
	 	Section 2.17(b)
	Environmental Reports
	 	Section 2.17(i)
	ERISA
	 	Section 2.14(a)
	ERISA Affiliate
	 	Section 2.14(b)
	Escrow Agent
	 	Section 1.3.1(b)

 

iv

 

	 	 	 
	Defined Term	 	Location
	Escrow Agreement
	 	Section 1.3.1(b)
	Estimated Closing Balance Sheet
	 	Section 1.4
	Estimated Net Working Capital Adjustment
	 	Section 1.4(d)
	Estimated Net Working Capital Amount
	 	Section 1.4
	Estimated Net Working Capital Deficiency
	 	Section 1.4
	Estimated Net Working Capital Surplus
	 	Section 1.4
	Exchange Act
	 	Section 2.4(b)
	FCPA
	 	Section 2.7(b)
	Final Net Working Capital Amount
	 	Section 1.5(b)
	Final Net Working Capital Deficiency
	 	Section 1.5(c)
	Final Net Working Capital Surplus
	 	Section 1.5(c)
	Financial Statements
	 	Section 2.8
	Fundamental Warranty
	 	Section 8.5(a)
	GAAP
	 	Section 2.8
	GAAP Liabilities
	 	Section 9.5(d)(ix)
	Governmental Entity
	 	Section 2.4(a)
	Hazardous Material
	 	Section 9.5(d)(x)
	Independent Accounting Firm
	 	Section 1.5(b)
	Indemnitee
	 	Section 8.4
	Indemnifying Party
	 	Section 8.4
	Information Statement
	 	Section 5.5(a)
	Initial Cash Consideration
	 	Section 1.3.1(a)
	Intellectual Property
	 	Section 9.5(d)(xi)
	IRS
	 	Section 2.14(c)
	Knowledge
	 	Section 9.5(d)(xii)
	Law
	 	Section 9.5(d)(xiii)
	Leichtweis
	 	Section 9.5(d)(xiv)
	Leichtweis Employment Agreement
	 	Section 6.2(k)
	Liability/Liabilities
	 	Section 9.5(d)(xv)
	Lien
	 	Section 9.5(d)(xvi)
	Litigation
	 	Section 9.5(d)(xvii)
	Losses
	 	Section 8.3
	Management Investor/Management Investors
	 	Section 5.21
	Material Adverse Effect
	 	Section 9.5(d)(xviii)
	Material Customers
	 	Section 2.13
	Money Laundering Laws
	 	Section 2.7(c)
	Most Recent Company Balance Sheet
	 	Section 2.8
	NASDAQ
	 	Section 4.5(a)
	Net Working Capital Amount
	 	Section 1.4(a)
	Note
	 	Section 1.2(b)
	Note Consideration
	 	Section 1.2(b)
	Notice of Claim
	 	Section 8.4(a)
	Order
	 	Section 2.4(a)
	Out-of-Pocket Expenses
	 	Section 9.1(b)
	Parent
	 	Preamble

 

v

 

	 	 	 
	Defined Term	 	Location
	Parent Adverse Recommendation Change
	 	Section 5.2(d)
	Parent and Company Secretary Certificates
	 	Section 6.3(c)
	Parent Board
	 	Preamble
	Parent Common Stock
	 	Section 2.3(b)
	Parent Disclosure Letter
	 	Article II
	Parent Indemnitees
	 	Section 8.2
	Parent Non-Solicitation Period
	 	Section 5.13
	Parent Notice of Change
	 	Section 5.2(d)
	Parent Release
	 	Section 6.3(k)
	Parent Required Votes
	 	Section 2.2(a)
	Parent Restricted Party/Parties
	 	Section 5.13(a)
	Parent Termination Fee
	 	Section 9.1(b)
	Parent Stockholders
	 	Section 5.5(e)
	Payoff Amount
	 	Section 1.3.2(a)
	Payoff Shares
	 	Section 1.3.2(b)
	PBGC
	 	Section 2.14(f)
	Permits
	 	Section 2.6
	Permitted Lien
	 	Section 9.5(d)(xviii)
	Person
	 	Section 9.5(d)(xix)
	PESI
	 	Preamble
	PESI Common Stock
	 	Section 5.21
	PESI DC Plan
	 	Section 5.9(b)
	PESI Disclosure Letter
	 	Article IV
	PESI Governing Documents
	 	Section 4.2
	PESI Indemnitees
	 	Section 8.1
	PESI Lender
	 	Section 4.5(a)
	PESI Options
	 	Section 4.3
	PESI Preferred Stock
	 	Section 4.3
	PESI Restricted Party/Parties
	 	Section 5.16
	PESI SEC Documents
	 	Section 4.7(a)
	PESI Secretary’s Certificate
	 	Section 6.2(g)
	PESI Subsidiary
	 	Section 4.1(b)
	Piggyback Rights
	 	Section 1.3.2(b)
	Pre-Closing Tax Period
	 	Section 5.10(a)
	Purchase Price
	 	Section 1.2
	Registered IP
	 	Section 2.22(a)
	Registration Rights Agreement
	 	Section 1.3.2(b)
	Release
	 	Section 9.5(d)(xx)
	Remaining Escrow Amount
	 	Section 9.3
	Representatives
	 	Section 5.2(a)
	Retained Portion of Purchase Price
	 	Section 1.3.1(a)
	SEC
	 	Section 2.20(a)
	Securities Act
	 	Section 9.5(d)(xxi)
	Series F Preferred Stock
	 	Section 2.3(b)
	Series H Preferred Stock
	 	Section 2.3(b)

 

vi

 

	 	 	 
	Defined Term	 	Location
	Series I Preferred Stock
	 	Section 2.3(b)
	SOX
	 	Section 2.20(a)
	SPRU Project
	 	Section 9.5(d)(xxii)
	Straddle Period
	 	Section 5.10(b)
	Subscription Agreement
	 	Section 5.21
	Subsidiary
	 	Section 9.5(d)(xxiii)
	Superior Proposal
	 	Section 5.2(f)
	Tax
	 	Section 9.5(d)(xxiv)
	Tax Claim
	 	Section 5.10(h)(ii)
	Tax Return
	 	Section 9.5(d)(xxv)
	Termination Date
	 	Section 7.1(b)(i)
	Title IV Plan
	 	Section 2.14(b)
	USG Authorities
	 	Section 5.4(e)
	WARN Act
	 	Section 2.18(c)
	Welfare Plan
	 	Section 2.14(j)
	Written Demand Notice
	 	Section 1.3.2
	Yorkville
	 	Section 6.3(p)

 

vii

 

STOCK PURCHASE AGREEMENT

THIS STOCK PURCHASE AGREEMENT (this “Agreement”) is made and entered into as of July
15, 2011, by and among PERMA-FIX ENVIRONMENTAL SERVICES, INC., a Delaware corporation
(“PESI”); HOMELAND SECURITY CAPITAL CORPORATION, a Delaware corporation (“Parent”);
and SAFETY & ECOLOGY HOLDINGS CORPORATION, a Nevada corporation (the “Company”).

WHEREAS, the Company is a subsidiary of Parent, and the Company and its Subsidiaries are an
international provider of environmental, nuclear and radiological infrastructure remediation,
disaster relief solutions and advanced construction services (the “Business”);

WHEREAS, Parent is the owner of all of the issued and outstanding shares of capital stock of
the Company, consisting of 20 shares of common stock, par value $0.001 per share (the “Company
Common Stock”) and 10,550,000 shares of Series A Preferred Stock, par value $0.001 per share
(the “Company Series A Preferred”);

WHEREAS, the issued and outstanding shares of the Company Common Stock and the Company Series
A Preferred are collectively referred to herein as the “Company Shares”;

WHEREAS, the Company Shares represent all of the issued and outstanding shares of capital
stock of the Company, and there shall not at the Closing be any other issued and outstanding
securities, notes, options, rights or other instruments convertible or exercisable into any capital
stock of the Company;

WHEREAS, PESI desires to purchase from Parent, and Parent desires to sell to PESI, all of the
Company Shares, subject to the terms of this Agreement;

WHEREAS, the Parent Board of Directors (the “Parent Board”) and the Company Board of
Directors (the “Company Board”) have approved the execution, delivery and performance by
Parent and the Company of this Agreement and the transactions contemplated herein and the
obligations of Parent and the Company hereunder, respectively, and the Parent Board has determined
to recommend that the stockholders of Parent approve the transactions contemplated herein; and

WHEREAS, in addition to those capitalized terms defined above, the parties intend that certain
other capitalized terms used throughout this Agreement have the respective meanings set forth in
the Sections of this Agreement described in the Table of Defined Terms which precedes this
preamble.

 

 

 

NOW, THEREFORE, in consideration of the premises and the representations, warranties and
agreements contained herein, the benefits to be derived by each party hereunder and other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties
agree as follows:

ARTICLE I.

PURCHASE AND SALE

1.1 The Acquisition. Pursuant to, and subject to the terms of, this Agreement, at the
Closing, Parent shall sell, assign and transfer to PESI, and PESI shall purchase from Parent, all
of the Company Shares, free and clear of any and all Liens (the “Acquisition”). The
Company Shares to be purchased by PESI represent 100% of the issued and outstanding capital stock
of the Company.

1.2 Purchase Price. Subject to Section 1.3 and the other terms of this Agreement, the
aggregate purchase price for the Company Shares shall be the amount equal to the sum of the
following (the “Purchase Price”):

(a) $22,000,000, in cash, as may be adjusted pursuant to the Estimated Net Working Capital
Adjustment Amount and the Closing Net Working Capital Adjustment Amount calculated as set forth in
Sections 1.4 and 1.5, respectively (the “Cash Consideration”), payable to Parent as set
forth in Section 1.3.1 hereof, and

(b) a three (3) year unsecured promissory note in the principal amount of $2,500,000 (the
“Note”) issued by PESI to the order of Parent, with the Note providing, among other things,
the terms as set forth in Section 1.3.2 and the Note being substantially in the form and substance
as set forth in the Promissory Note attached hereto as Exhibit A (the “Note
Consideration”).

1.3 Payment of Purchase Price. Subject to the terms of this Agreement, the Purchase
Price will be paid to Parent, as follows:

	 	1.3.1	 	Cash Consideration. At the Closing, PESI will pay:

	 	(a)	 	$20,000,000 of the Cash Consideration, as may
be adjusted by the Estimated Net Working Capital Adjustment Amount,
less the aggregate amount of the purchase price due and owing PESI for
the PESI Common Stock to be purchased by the Management Investors in
accordance with Section 5.21 (“Retained Portion of Purchase
Price”), to Parent by wire transfer of immediately available funds,
to the bank account designated in writing by Parent (the “Initial
Cash Consideration”), and

	 	(b)	 	$2,000,000 of the Cash Consideration to
SunTrust Bank, as escrow agent (the “Escrow Agent”), by wire
transfer of immediately available funds, to be held and administered
pursuant to the terms of the escrow agreement attached hereto as
Exhibit B (the “Escrow Agreement”), to satisfy all or
part of any claims for indemnity
pursuant to Section 8.1 hereof and for any other purpose specifically
set forth in the Escrow Agreement.

 

2

 

	 	1.3.2	 	Note Consideration. The Note in the principal amount
of $2,500,000 shall be issued by PESI to the order of Parent. The Note (i)
shall be unsecured and subordinated; (ii) shall bear an annual interest rate
equal to 6%; (iii) shall be non-negotiable; (iv) may not be sold, transferred
or assigned by Parent without the prior written consent of PESI which may be
withheld by PESI in PESI’s sole discretion; (v) shall be subject to offset as
provided in Section 9.3 hereof; and (vi) shall be payable over a three (3) year
period in thirty-six (36) monthly installments of principal and interest, with
each monthly installment to be as follows: the principal sum of $69,444.44,
plus accrued interest, with the final installment to be in the sum of the
remaining unpaid principal balance due under the Note plus accrued interest,
due thereon. The first installment shall be payable on the 15th
day of the month following the Closing Date and an installment due on the
15th day of each of the next 35 months thereafter. The Note further
provides that on the failure of PESI to pay any monthly installment of
principal and interest within 30 days when due thereunder (“Default
Date”), (x) the annual interest rate will automatically increase (without
any action on the part of Parent) as of such Default Date to 12% during the
period of such default, and (y) Parent will have the option to declare the Note
in default and to be immediately due and payable where upon the Note shall
become forthwith due and payable upon written demand received by PESI
(“Written Demand Notice”), and Parent will thereafter, at its option
and in its sole discretion, have the right to elect by written election
delivered to PESI to receive in full and complete satisfaction of all of PESI’s
obligations under the Note, as more fully set forth therein, either:

	 	(a)	 	the cash amount equal to the sum of the unpaid
principal balance owing under the Note and all accrued and unpaid
interest thereon, plus the Expenses (as defined in the Note) (the
“Payoff Amount”);

	 	(b)	 	the number of fully paid and non-assessable
 shares of PESI restricted Common Stock (the “Payoff Shares”),
equal to the quotient determined by dividing the Payoff Amount by the
average of the closing prices per share of the PESI Common Stock as
reported by the primary national securities exchange or automatic
quotation system on which PESI Common Stock is traded during the 30
consecutive trading day period ending on the trading day immediately
prior to receipt by PESI of the Written Demand Notice in accordance
with Section 9.4 and Parent’s written election to receive Payoff Shares
in full and complete satisfaction of PESI’s obligations under the
Note; provided, however, that the number of Payoff Shares plus the
number of shares of PESI Common Stock to be issued to the Management
Investors pursuant
to Section 5.21 hereof shall not exceed 19.9% of the voting power of
all of PESI voting securities issued and outstanding as of the date
of this Agreement. In addition, the Parent shall not, at anytime or
for any reason, assign, transfer or convey the Payoff Shares or any
portion thereof, if issued by PESI to Parent, to Yorkville.

 

3

 

If the Parent elects to receive the Payoff Shares, the issuance of
the Payoff Shares will be subject to PESI having received from
Parent, within three (3) Business Days prior to the issuance of the
Payoff Shares, substantially the same representations, warranties and
covenants as set forth in Exhibit C attached hereto, duly
executed by the Parent. If issued, the Payoff Shares will not be
registered, and the Parent will not be entitled to registration
rights with respect to the Payoff Shares, except for certain
piggyback rights (“Piggyback Rights” as set forth in the
Registration Rights Agreement in substantially the form attached
hereto as Exhibit D (the “Registration Rights
Agreement”), which Registration Rights Agreement shall be
executed by HOMS and PESI immediately prior to issuance of the Payoff
Shares. The Payoff Shares that will be issued to Parent will be
subject to the restrictions, qualifications, and limitations set
forth in Exhibit C, this Agreement and the Note, including
without limitation, compliance with federal and state securities
laws, the percentage of the Payoff Shares to be issued to Parent, and
the limitations on the maximum number of Payoff Shares to be issued
to Parent.

	 	(c)	 	any combination of the Payoff Amount or the
Payoff Shares, provided, however, that the aggregate amount of the
Payoff Amount and the Payoff Shares shall not exceed the unpaid
principal balance and accrued interest due under the Note as of receipt
by PESI of the Written Demand Notice, with the number of Payoff Shares
to be determined by dividing the amount of the Payoff Amount which is
to be paid in Payoff Shares by the average of the closing prices per
share of the PESI Common Stock as reported by the primary national
securities exchange or automatic quotation system on which PESI Common
Stock is traded during the thirty (30) consecutive trading day period
ending on the trading day immediately prior to receipt by PESI of the
Written Demand Notice and Parent’s written election to receive a
portion of the Payoff Amount in Payoff Shares, with such notice to
specify the amount of the Payoff Amount to be paid in Payoff Shares;

	 	(d)	 	If the Payoff Shares are to be issued, Parent
shall be entitled to the Piggyback Rights with respect to such shares
for a period of two (2) years from the date such Payoff Shares are
issued to the Parent,
pursuant to the terms and conditions as set forth in Exhibit
D attached hereto.

 

4

 

1.4 Estimated Net Working Capital Adjustment. At least five (5) Business Days before
Closing, Parent shall deliver to PESI a balance sheet representing Parent’s good faith estimate of
the consolidated balance sheet of the Company and the Company Subsidiaries as of the Closing Date
(without giving effect to the transactions contemplated herein) (the “Estimated Closing Balance
Sheet”), which shall include the estimated net working capital of the Company as of the Closing
Date (the “Estimated Net Working Capital Amount”). The Estimated Closing Balance Sheet and
the calculations of the Estimated Net Working Capital Amount shall be determined pursuant to GAAP,
except as otherwise provided in this Section 1.4. If the Estimated Net Working Capital Amount, as
stated in and calculated in accordance with the Estimated Closing Balance Sheet, is greater than
$10,500,000, then the Initial Cash Consideration to be paid to Parent at Closing pursuant Section
1.3.1(a) will be increased by such excess amount (such amount, the “Estimated Net Working
Capital Surplus”). If the Estimated Net Working Capital Amount is less than $9,500,000, then
the Initial Cash Consideration to be paid to Parent at Closing pursuant Section 1.3.1(a) will be
decreased by such deficiency (such amount, the “Estimated Net Working Capital Deficiency”).
The Estimated Closing Balance Sheet of the Company shall be subject to the reasonable approval of
PESI. For purposes of this Agreement:

(a) “Net Working Capital Amount” shall mean the difference between the Company’s
“Currents Assets” minus “Current Liabilities;”

(b) “Current Assets” shall mean the balance as of the date of the Estimated Closing
Balance Sheet of the Company’s cash and cash equivalents, restricted cash, trade and other
receivables (less allowance for bad debts, receivables outstanding longer than [120] days,
obligations under all capital leases surviving the Closing, both current and long-term),
inventories, prepaid expenses and other current assets (as determined under GAAP). Prior to the
Closing, PESI shall have the opportunity to review all receivables and identify any receivables it
considers to be at risk. The parties shall mutually agree, at least three (3) Business Days prior
to delivery of the Estimated Closing Balance Sheet, as to which receivables of the Company and the
Company Subsidiaries are at risk of collection and the calculation of the Company’s Current Assets
for purposes of calculating the Estimated Closing Balance Sheet. All intercompany agreements,
receivables and payables between the Company and/or the Company Subsidiaries, the Parent or its
Affiliates shall have been terminated and estimated prior to the Closing. Termination of such
intercompany accounts shall be a condition to the Closing of this Agreement by PESI.

(c) “Current Liabilities” shall mean the balance, as of the date of the Estimated
Closing Balance Sheet, of accounts payable, accrued expenses, accrued compensation payable, and all
amounts owing under the Company’s Credit Agreement.

(d) “Estimated Net Working Capital Adjustment” shall mean the Estimated Net Working
Capital Surplus or Estimated Net Working Capital Deficiency, as applicable.

 

5

 

1.5 Closing Net Working Capital Adjustment.

(a) Within 75 days after the Closing, PESI shall prepare and deliver to Parent a statement
(the “Closing Statement”) which reflects, in reasonable detail, the Net Working Capital
Amount of the Company as of the Closing (the “Closing Net Working Capital Amount”). The
items reflected in the Closing Statement shall be determined using the same principles, policies
and methods used in connection with the determination of the Estimated Working Capital Adjustment
Amount, except Current Liabilities and Current Assets shall be determined as of the Closing Date.
The parties agree to cooperate with each other in connection with the preparation of the Closing
Statement and PESI shall make available to Parent all records and workpapers used in preparing the
Closing Statement.

(b) Parent may dispute the Closing Net Working Capital Amount and the Closing Statement by
notifying PESI in writing of any disputed amounts, and provide a reasonably detailed description of
the basis of any such dispute, within 45 days after Parent’s receipt of the Closing Statement. If
Parent disputes the Closing Net Working Capital Amount and the Closing Statement, Parent and PESI
shall attempt to reconcile their differences and any resolution by them as to any disputed amounts
shall be final, binding and conclusive on the parties. If Parent and PESI are unable to reach a
resolution of any such differences within 30 days after PESI’s receipt of Parent’s written notice
of dispute, Parent and PESI shall submit the amounts remaining in dispute for determination and
resolution to a firm of independent certified public accountants selected jointly by Parent and
PESI (or if Parent and PESI cannot agree within such 30 day period, a firm of independent certified
public accountants as selected jointly by Parent’s and PESI’s respective choices of independent
certified public accountants) (the “Independent Accounting Firm”), which shall be
instructed to determine and report to the parties, within 30 days after such submission, a
resolution of such remaining disputed amounts, and such resolution shall be final, binding and
conclusive on the parties hereto with respect to the remaining amounts disputed. The Independent
Accounting Firm may not assign a value to any item in dispute greater than the greatest value for
such item assigned by PESI, on the one hand, or Parent, on the other hand. The Independent
Accounting Firm’s determination will be based solely on written submissions made by PESI and Parent
prepared in accordance with the guidelines and procedures set forth in this Agreement and not on
the basis of an independent review. PESI and Parent will each pay their own fees and expenses
(including any fees and expenses of their accountants and other representatives) in connection with
the resolution of any dispute under this Section 1.5 (excluding the fees and expenses of the
Independent Accounting Firm). The fees and expenses of the Independent Accounting Firm pursuant to
this Section 1.5(b) shall be borne by PESI and Parent, in inverse proportion as they may prevail on
matters resolved by the Independent Accounting Firm, which proportionate allocations shall also be
determined by the Independent Accounting Firm at the time the determination of such firm is
rendered on the merits of the matters submitted. The Closing Net Working Capital Amount shall be
deemed to be modified to the extent of any changes thereto that become final, binding and
conclusive on the parties based on mutual agreement or a determination of the Independent
Accounting Firm in accordance with this Section 1.5(b). As used in this Agreement, the term
“Final Net Working Capital Amount” shall mean, as applicable, (i) the Closing Net Working
Capital Amount, if undisputed by Parent, (ii) the Closing Net Working Capital Amount, as adjusted
by mutual agreement pursuant to this Section 1.5(b), or (iii) the Closing Net Working Capital
Amount, as adjusted pursuant to this Section 1.5(b) by the Independent Accounting Firm.

 

6

 

(c) Within five (5) Business Days after the later of (i) the date on which Parent’s written
notice of dispute would have been required to be delivered to PESI by Parent in accordance with
Section 1.5(b), or (ii) the resolution of all timely disputed amounts in accordance with Section
1.5(b), the Purchase Price shall be increased or decreased pursuant to this Section 1.5(c) and the
amount of such increase or decrease paid pursuant to this Section 1.5(c). If the Closing Net
Working Capital Amount is greater than $10,000,000, PESI shall pay to Parent an amount equal to
such excess, less the Estimated Net Working Capital Surplus, if any (such amount, the “Final
Net Working Capital Surplus”). If the Final Closing Net Working Capital Amount is less than
$10,000,000, then Parent shall pay to PESI an amount equal to such deficiency, less the Estimated
Net Working Capital Deficiency, if any (such amount, the “Final Net Working Capital
Deficiency”). Any Final Net Working Capital Deficiency or Final Net Working Capital Surplus
shall bear interest at the prime rate of Citibank, N.A. in effect on the Closing Date commencing on
the Closing Date through the date of payment and calculated daily on the basis of a year of 365
days and the actual number of days elapsed, without compounding, and shall be paid, together with
such interest, by wire transfer of immediately available funds to an account designated in writing
by the party to whom payment is owed.

1.6 Intentionally Omitted.

1.7 Closing; Closing Transactions. The closing (the “Closing”) of the
transactions contemplated by this Agreement will take place at 10:00 a.m. (local time) on a date to
be specified by the parties, which shall be no later than the second Business Day after
satisfaction or (to the extent permitted by applicable Law) waiver of the conditions set forth in
Article VI (other than any such conditions which by their nature cannot be satisfied until the
Closing Date, which shall be so satisfied or (to the extent permitted by applicable Law) waived by
the party entitled to the benefit of those conditions on the Closing Date), at the offices of
Conner & Winters, LLP, 1700 One Leadership Square, 211 North Robinson, Oklahoma City, Oklahoma
73102, or remotely via the exchange of documents and signatures, unless another time, date or place
is agreed to in writing by the parties (such date upon which the Closing occurs, the “Closing
Date”). For all purposes, the Closing shall be deemed to have occurred as of 12:01 a.m. on the
Closing Date.

	 	1.7.1	 	Parent’s Closing Deliveries. Subject to the
conditions set forth in this Agreement, at or prior to the Closing, Parent
shall deliver to PESI all closing deliverables set forth in Section 6.3.

	 
	 	1.7.2	 	PESI’s Closing Deliveries. Subject to the conditions
set forth in this Agreement, at or prior to the Closing, PESI shall deliver to
Parent or the Company, as appropriate, the closing deliverables set forth in
Section 6.2 of this Agreement.

 

7

 

ARTICLE II.

REPRESENTATIONS AND WARRANTIES REGARDING PARENT AND THE COMPANY

Parent and the Company, jointly and severally, hereby represent and warrant to PESI that,
except as set forth in Parent’s disclosure letter delivered to PESI at or prior to the execution of
this Agreement (the “Parent Disclosure Letter”), which letter has been arranged to
correspond to the numbered and lettered Sections in this Article II, provided that disclosure of
any item in any Section of the Parent Disclosure Letter shall not be deemed to be disclosed with
respect to any other Section of this Article II:

2.1 Organization and Qualification; Company Subsidiaries.

(a) The Company is a corporation duly incorporated and validly existing in good standing under
the laws of the State of Nevada and Parent is a corporation duly incorporated and validly existing
in good standing under the laws of the State of Delaware. Each of the Company and Parent has the
requisite corporate power and authority to own or lease its properties and to carry on its business
as it is now being conducted and is duly licensed or qualified to do business in each jurisdiction
in which the nature of the business conducted by it or the character of the properties owned or
leased by it makes such licensing or qualification necessary, except where the failure to be so
qualified has not had, and could not reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect.

(b) Each Subsidiary of the Company (each, a “Company Subsidiary”, and collectively,
“Company Subsidiaries”) (i) is duly incorporated and validly existing under the laws of
its respective jurisdiction of organization, (ii) has the requisite corporate or other business
entity power and authority to own or lease its properties and to carry on its business as it is now
being conducted, and (iii) is duly licensed or qualified to do business in each jurisdiction in
which the nature of the business conducted by it or the character of the properties owned or leased
by it makes such licensing or qualification necessary, in each case, except as has not had, and
could not reasonably be expected to have, individually or in the aggregate, a Material Adverse
Effect. Section 2.1(b) of the Parent Disclosure Letter sets forth a true and complete list of all
of the Company Subsidiaries, the state of incorporation or formation of each Company Subsidiary
and, as of the date hereof, the jurisdictions in which each Company Subsidiary is qualified or
licensed to do business. Other than with respect to the Company Subsidiaries, the Company does not
directly or indirectly own any equity interest in, or any interest convertible into or exchangeable
or exercisable for, any equity interest in, any corporation, partnership, joint venture or other
business entity.

2.2 Authority; Binding Nature of Agreement; Approval; Governing Documents. 

(a) Parent
and the Company have the requisite corporate power and authority to enter into this Agreement and
to perform its obligations under this Agreement subject to the approval of this Agreement by the
affirmative vote of the holders of a majority of the outstanding capital stock of Parent, with the
holders of Parent’s Series I Convertible Preferred Stock and Parent’s Series H Convertible
Preferred Stock, voting as a single class with the Parent Common Stock on an as-converted basis,
and the affirmative vote of the holders of 66% of the issued and
outstanding shares of Parent’s Series H Convertible Preferred Stock, voting as a separate
class (the “Parent Required Votes”).

(b) The execution, delivery and performance of this Agreement by Parent and the Company and
the consummation by Parent and the Company of the transactions contemplated hereby have been duly
and validly authorized by all requisite corporate action on the part of Parent and the Company
(other than, the approval of this Agreement by the Parent Required Votes).

(c) This Agreement has been duly executed and delivered by Parent and the Company and,
assuming the due authorization, execution and delivery hereof by PESI, constitutes a valid and
binding obligation of Parent and the Company, enforceable against Parent and the Company in
accordance with its terms, except as limited by bankruptcy, insolvency, moratorium, fraudulent
transfer, reorganization and other laws of general applicability relating to or affecting the
rights or remedies of creditors and by general equitable principles (whether considered in a
proceeding in equity or at law).

 

8

 

(d) The Parent Board, at a meeting duly called and held, duly adopted resolutions, among other
things, (i) determining that this Agreement and the transactions contemplated hereby are advisable
and in the best interests of the stockholders of Parent and the Company, (ii) approving this
Agreement and transactions contemplated hereby and all other corporate action required to be taken
in connection with the consummation of the transactions contemplated hereby, (iii) directing that
the approval of this Agreement be submitted to the stockholders of Parent for consideration, and
(iv) recommending approval of this Agreement by the stockholders of Parent, which resolutions have
not been, and will not be, subsequently rescinded, modified or withdrawn in any way.

(e) The Parent represents and warrants that it can obtain more than the number of holders of
its capital stock necessary to obtain, the written consents of holders of its outstanding capital
stock having not less than the minimum number of votes that would be necessary to obtain the Parent
Required Votes to approve this Agreement and the transactions contemplated by this Agreement at a
meeting at which all shares of Parent’s capital stock entitled to vote thereon were present and
voted pursuant to Section 228 of the DGCL.

(f) Parent and the Company have heretofore made available to PESI true and complete copies of
their respective certificates of incorporation and bylaws and the comparable organizational
documents of each Company Subsidiary, each as amended to date. Such certificates of incorporation,
bylaws and organizational documents are in full force and effect.

2.3 Capitalization. 

(a) The authorized capital stock of the Company consists of
50,000,000 shares of Company Common Stock and 16,500,000 shares of Company Series A Preferred. As
of the date of this Agreement, (i) 20 shares of Company Common Stock and 10,500,000 shares of the
Company’s Series A Preferred are issued and outstanding, all of which were validly issued, fully
paid and non-assessable, and none of which were issued in violation of any preemptive or similar
rights of any Company securityholder, and (ii) no shares of Company Common Stock were held
by the Company in its treasury. There are no outstanding (i) options, warrants or other
rights, agreements, arrangements or commitments of any character obligating the Company or any
Company Subsidiary to issue or sell any shares of capital stock of, or other equity interests in
the Company or any Company Subsidiary, or (ii) agreements of the Company or any Company Subsidiary
to repurchase, redeem or otherwise acquire any shares of capital stock of the Company or any
Company Subsidiary.

(b) The authorized capital stock of the Parent consists of 2,000,000,000 shares of the
Parent’s Common Stock, par value $0.001 per share (“Parent Common Stock”) and 10,000,000
shares of the Parent’s Preferred Stock. As of the date of this Agreement, Parent has issued and
outstanding the following: (i) 54,491,449 shares of the Parent’s Common Stock, (ii) 1,000,000
shares of the Parent’s Series F Preferred Stock, (iii) 9,574 shares of the Parent’s Series H
Preferred Stock, and (iv) 550,000 shares of the Parent’s Series I Preferred Stock, par value $0.01
per share (respectively, the “Series F Preferred Stock, Series H Preferred, and
Series I Preferred”) and such shares of Preferred Stock are convertible into shares of the
Parent’s Common Stock, subject to certain limitations. All of the shares of Series F Preferred
Stock and Series H Preferred Stock are owned by Yorkville. In addition, Parent has issued (i) to
Yorkville, warrants to purchase up to 85,133,333 shares of the Parent’s Common Stock under certain
conditions, (ii) to the Management Investors, warrants to purchase up to 22,000,000 shares of
Parent’s Common Stock, and (iii) to certain third parties, warrants to purchase up to 400,000
shares of Parent’s Common Stock.

 

9

 

(c) All of the issued and outstanding shares of capital stock of the Company and each Company
Subsidiary have been duly authorized and validly issued, are fully paid and non-assessable, and all
outstanding shares of Company Common Stock are owned by Parent, free and clear of any Lien, other
than Liens in favor of Yorkville and SunTrust Bank, and all outstanding shares of the Company
Series A Preferred are owned by Parent, free and clear of any Liens, other than Liens in favor of
Yorkville and SunTrust Bank. All outstanding capital stock of the Company Subsidiaries are owned
by the Company, free and clear of any Lien other than Liens in favor of Yorkville and SunTrust
Bank. None of the outstanding shares of capital stock or equivalent equity interest of the Company
and the Company Subsidiaries were issued in violation of any preemptive or similar rights arising
by operation of law, or under the charter, bylaws or other comparable organizational documents of
the Company or any of the Company Subsidiaries or under any agreement to which the Company or any
Company Subsidiary is a party. There are no outstanding bonds, debentures, notes, warrants,
options, rights or other indebtedness of the Company or any Company Subsidiary having the right to
vote (or convertible into, or exchangeable for, securities having the right to vote) on any matter
on which the Company’s stockholders may vote. As a condition to Closing of this Agreement by PESI,
all Liens covering the capital stock of, and all Liens, other than Permitted Liens, covering the
assets of, the Company and the Company Subsidiaries held by Yorkville and SunTrust Bank must be
released and terminated in all respects on or prior to the Closing, with the terms of such release
and termination to be reasonably satisfactory to PESI.

2.4 No Violation; Consents. 

(a) Except as set forth on Section 2.4(a) of the Parent Disclosure Letter, the execution and
delivery of this Agreement by each of Parent and the Company does not, and the
consummation by Parent and the Company of the transactions contemplated hereby will not (i)
conflict with or violate the certificate of incorporation and bylaws of Parent or the Company or
the comparable organizational documents of any of the Company Subsidiaries, (ii) constitute a
breach or violation of, a default (or an event which, with notice or lapse of time or both, would
constitute such a default) under, require consent under, or give rise to a right of termination,
cancellation, creation or acceleration of any obligation, payment of any consent or similar fee, or
to the loss of any benefit under, or result in the creation of any Lien upon any of the properties
or assets of the Company or any of the Company Subsidiaries under, any indenture, mortgage, deed of
trust, loan or credit agreement, note, bond, lease or other agreement, including any Company
Material Contract, instrument or Permit to which Parent, the Company or any Company Subsidiary is a
party or by which any of them or any of their respective properties are bound or subject, (iii)
(assuming that the consents and approvals referred to in Section 2.4(b) are duly and timely
obtained and that the adoption of this Agreement by the Parent Required Votes are obtained)
conflict with or violate any Law or any order, judgment, decree or injunction (each, an
“Order”) of any federal, state or local or foreign government, any court, administrative,
regulatory or other governmental agency, commission or authority or any non-governmental United
States or foreign self-regulatory agency, commission, body, entity or authority or any arbitral
tribunal (each, a “Governmental Entity”) directed to Parent or the Company or any of the
Company Subsidiaries or any of their properties, except, in the case of clause (ii) and (iii), for
such conflicts, breaches, violations, consent requirements, terminations, obligations, fees, loss
of benefits, defaults or Liens, that have not had, and could not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect.

 

10

 

(b) Except for (i) obtaining the Parent Required Votes approving transactions contemplated by
this Agreement pursuant to the laws of the State of Delaware, the Parent’s Certificate of
Incorporation, the requirements of the Securities Exchange Act of 1934 (the “Exchange Act”)
and any other applicable U.S. state or federal securities laws and the laws of the State of Nevada,
(ii) authorizations, consents, approvals or filings under any Environmental Laws relating to the
transfer or issuance of Environmental Permits in connection with the Acquisition, and (iii) the
consents, approvals, and authorizations listed on Section 2.4(b) of the Parent Disclosure Letter,
no other consent, approval or authorization of, or registration with, any Governmental Entity or
any third party is required to be obtained or made by Parent or the Company for the execution and
delivery by Parent and the Company of this Agreement or the consummation by Parent or the Company
of the transactions contemplated hereby.

2.5 Compliance With Laws. Except as set forth on Section 2.5 of the Parent Disclosure
Letter, the Company and each Company Subsidiary is, and at all times since June 27, 2010, has been,
in material compliance with all applicable Law and any Order of any Governmental Entity having
jurisdiction over it.

2.6 Permits. The Company and the Company Subsidiaries hold all material licenses,
permits, variances, consents, authorizations, waivers, grants, franchises, concessions, exemptions,
registrations and approvals (“Permits”) from Governmental Entities or other Persons
necessary
for the conduct of their respective businesses as currently conducted. None of Parent, the
Company nor any of the Company Subsidiaries has received written notice that any such Permit will
be terminated or modified or cannot be renewed in the ordinary course of business, and, to Parent’s
Knowledge, there is no basis for any such termination, modification or nonrenewal. The execution,
delivery and performance of this Agreement and the consummation of the transactions contemplated
hereby do not and will not violate any such Permit, or result in any termination, modification or
nonrenewals thereof, except as have not, individually or in the aggregate, had, or could not be
reasonably expected to have, a Material Adverse Effect.

2.7 Certain Business Practices. 

(a) None of the Company, any of the Company Subsidiaries, to Parent’s or the Company’s
Knowledge, any of their directors, officers, employees or agents, or Parent, or to Parent’s
Knowledge, any of Parent’s Affiliates acting on behalf of the Company or any of the Company
Subsidiaries, has, directly or indirectly, (i) made, authorized or offered any contribution,
payment or gift of funds or property to any official, employee or agent of any Governmental Entity
or (ii) made any contribution to any candidate for public office, in either case, where either the
payment or the purpose of such contribution, payment or gift was, is or would be prohibited under
any applicable anti-bribery or anti-corruption Law of any relevant jurisdiction covering a similar
subject matter as in effect on or prior to the Closing applicable to the Company or any of the
Company Subsidiaries or their respective operations.

 

11

 

(b) None of the Company or any of the Company Subsidiaries and to Parent’s and the Company’s
Knowledge, none of their directors, officers, employees or agents, or Parent or any of their
Affiliates acting on behalf of the Company or any of the Company Subsidiaries, is aware of or has
taken any action, directly or indirectly, that would result in a violation of the U.S. Foreign
Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder
(“FCPA”), including, without limitation, any action in furtherance of any offer, payment,
promise to pay or authorization of the payment of any money or other property, or offer, gift,
promise to give, or authorization of the giving of anything of value to any “foreign official” (as
such term is defined in the FCPA) or any foreign political party or official thereof or any
candidate for foreign political office, in contravention of FCPA, and the Company and the Company
Subsidiaries and, to Parent’s Knowledge, the Company and the Company Subsidiaries have conducted
their respective businesses in compliance with FCPA.

(c) To Parent’s and the Company’s Knowledge, the operations of the Company and the Company
Subsidiaries are and have been at all times since April 1, 2008 conducted in material compliance
with applicable financial recordkeeping and reporting requirements of the Currency and Foreign
Transactions Reporting Act of 1970, as amended, the money laundering statutes of all jurisdictions,
the rules and regulations thereunder and any related or similar rules, regulations or guidelines,
issued, administered or enforced by any Governmental Entity (collectively, “Money Laundering
Laws”), and no action, suit or proceeding by or before any Governmental Entity or any
arbitrator involving the Company or any of the Company Subsidiaries with respect to the Money
Laundering Laws is pending or, to Parent’s or the Company’s Knowledge, threatened.

(d) None of the Company or any of the Company Subsidiaries or, to the Parent’s or the
Company’s Knowledge, any Representatives or Affiliates of the Company or any Company Subsidiary is
in violation of any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S.
Treasury Department.

2.8 Financial Statements. The historical consolidated financial statements of the
Company, together with the related schedules and notes thereto, for fiscal year ended June 27,
2010, together with the unaudited consolidated balance sheet of the Company as of March 31, 2011
(the “Most Recent Company Balance Sheet”) and unaudited statements of operations, cash
flows and stockholders’ equity for the nine months ended March 31, 2011, together with notes
thereto, which are attached to Section 2.8 of the Parent Disclosure Letter (collectively, the
“Financial Statements”), present fairly in all material respects the consolidated financial
position of the Company and the Company Subsidiaries at the dates indicated and the operations,
cash flows and stockholders’ equity of the Company and the Company Subsidiaries, on a consolidated
basis, for the periods specified (except, in the case of Financial Statements, subject to normal
inter-period and year-end adjustments that are not material in amount or significance in any
individual case or in the aggregate). All of such Financial Statements of the Company have been
prepared in accordance with generally accepted accounting principles in the United States
(“GAAP”) applied on a consistent basis throughout the periods involved, except as noted
therein. Except as reflected in such historical financial statements, including the notes thereto,
or as otherwise disclosed in the Financial Statements, neither the Company nor any of the Company
Subsidiaries is a party to any material off-balance sheet arrangement (as defined in Item 303 of
Regulation S-K of the Securities Act).

 

12

 

2.9 Absence of Certain Changes or Events. Since June 27, 2010, except as contemplated
by this Agreement or disclosed in Section 2.9 of the Parent Disclosure Letter, each of the Company
and the Company Subsidiaries has conducted its business only in the ordinary course consistent with
past practice and there has not been any event, circumstance, change, occurrence or state of facts
that has had, or could reasonably be expected to have, individually or in the aggregate, a Material
Adverse Effect. Since June 27, 2010, except as contemplated by this Agreement or disclosed in
Section 2.9 of the Parent Disclosure Letter, there has not been (u) any change by the Company in
any of its Tax methods or elections or in any of its accounting methods, principles or practices
materially affecting the consolidated assets, liabilities or results of operations of the Company
and its consolidated Company Subsidiaries, except insofar as may have been required by a change in
GAAP, applicable Law or regulatory guidelines, (v) any declaration, setting aside or payment of any
dividend or distribution in respect of any capital stock of the Company or any redemption, purchase
or other acquisition for value of any of the Company’s capital stock, (w) any granting by the
Company or any of the Company Subsidiaries of any increase in compensation or fringe benefits to
any employee, officer or director (except for increases in the ordinary course of business
consistent with past practice), or any payment by the Company or any of the Company Subsidiaries of
any bonus (except for bonuses made in the ordinary course of business consistent with past
practice), or any entry by the Company or any of the Company Subsidiaries into any contract (or
amendment of an existing contract) to grant or provide severance, acceleration of
vesting, termination pay or other similar benefits (except in the ordinary course of business
consistent with past practice), (x) any revaluation by the Company or any of the Company
Subsidiaries of any of their respective assets, including writing off notes or accounts receivable
or any sale of assets of the Company or any of the Company Subsidiaries, in excess of $75,000 in
the aggregate, (y) any sale, transfer or other disposition outside of the ordinary course of
business of any material property or material assets (whether real, personal or mixed, tangible or
intangible) by the Company or any of the Company Subsidiaries, or (z) any commitment or agreement
with respect to the items described in the preceding clauses (u) through (y).

2.10 Absence of Undisclosed Liabilities. Except (a) as described on Section 2.10 to
the Parent Disclosure Letter, (b) as reflected or reserved against in the Most Recent Company
Balance Sheet, (c) for obligations arising under this Agreement and transactions contemplated by
this Agreement, and (d) for Liabilities and obligations incurred since the date of the Most Recent
Company Balance Sheet in the ordinary course of business consistent with past practice, to the
Parent’s or Company’s Knowledge, neither the Company nor any of the Company Subsidiaries has any
Liabilities or obligations of any nature, whether or not accrued, contingent or otherwise, and
whether due or to become due, that have had, or could reasonably be expected to have, individually
or in the aggregate, a Material Adverse Effect. Except as set forth on Section 2.10 of the Parent
Disclosure Letter, notwithstanding anything herein to the contrary, neither the Company nor any of
the Company Subsidiaries has any debts, obligations or Liabilities of any kind, absolute or
contingent, due or owing to Yorkville. The Parent shall not permit the Company or any Company
Subsidiary to enter into any debt, obligation or Liability of any kind to Yorkville.

 

13

 

2.11 Litigation.

Except as described in Section 2.11 of the Parent Disclosure Letter, (a) there is no action,
suit, investigation or proceeding pending before or by any Person or, to Parent’s or the Company’s
Knowledge, threatened, against the Company or any of the Company Subsidiaries or any of their
respective assets, and (b) the Company and the Company Subsidiaries and their respective assets are
not subject to any Order, except as would not, individually or in the aggregate, have a Material
Adverse Effect.

2.12 Material Contracts. 

(a) Except as otherwise disclosed in Section 2.12 of the Parent Disclosure Letter, neither the
Company nor any Company Subsidiary is a party to or bound by any contract, arrangement, commitment
or understanding (whether written or oral):

(i) which is an employment agreement between the Company or a Company
Subsidiary, on the one hand, and any of its officers, directors or employees, on the
other hand, excluding any unwritten agreement that provides de minimis working
condition benefits and is terminable unilaterally by the Company or the Company
Subsidiaries without liability;

(ii) which, upon the consummation of this Agreement and the transactions
contemplated by this Agreement, will (either alone or upon the
occurrence of any additional acts or events, including the passage of time)
result in any material payment or benefit (whether of severance pay or otherwise)
becoming due, or the acceleration or vesting of any right to any material payment or
benefits, from the Company or any of the Company Subsidiaries to any officer,
director, consultant, agent or employee of any of the foregoing;

(iii) which is a material contract (as defined in Item 601(b)(10)(i) or
601(b)(10)(ii) of Regulation S-K of the Securities Act) to be performed on or after
the date of this Agreement;

(iv) except for intercompany transactions among the Company and the Company
Subsidiaries in the ordinary course of business consistent with past practice,
relating to the borrowing of money (including any guarantee thereof) or that is a
mortgage, security agreement, capital lease or similar agreements, in each case in
excess of $75,000 or that creates a Lien on any asset of the Company or any Company
Subsidiary;

(v) relating to the sale of any of the assets or properties of the Company or
any of the Company Subsidiaries, except inventory sold or to be sold in the ordinary
course of the Company’s or the Company Subsidiaries’ business;

 

14

 

(vi) relating to the acquisition by the Company or any of the Company
Subsidiaries of any assets, operating business or the capital stock of any other
Person, except inventory purchased in the ordinary course of the Company’s or the
Company Subsidiaries’ business;

(vii) which limits the ability of the Company or any Company Subsidiary to (x)
compete in or conduct any line of business or compete with any Person or in any
geographic area or distribution or sales channel, (y) sell, supply or distribute any
service or product, or (z) offer or purchase the assets or equity securities of
another Person, in each case, during any period of time;

(viii) which is a joint venture agreement, joint operating agreement,
partnership agreement or other similar contract or agreement involving a sharing of
profits and expenses with one or more other Persons;

(ix) which is a shareholder rights agreement or which otherwise provides for
the issuance, registration or voting of any securities of the Company or any of the
Company Subsidiaries; or

(x) which requires a consent to a change of control of the Company or any of
the Company Subsidiaries or to an assignment of the contract, arrangement,
commitment or understanding by the Company to another Person, as the case may be; or

(xi) other than those agreements listed in clauses (i) to (x) above, which
provides for the annual aggregate payment or receipt by the Company or any of the
Company Subsidiaries of amounts in excess of $75,000 individually within
the next 12 months and is not terminable without premium or penalty on less
than 30 days’ notice.

Each contract, arrangement, commitment or understanding of the type described in this Section
2.12(a) is referred to herein as a “Company Material Contract” and is listed in Section
2.12 of the Parent Disclosure Letters. The Company has made available to PESI true, complete and
correct copies of each Company Material Contract.

(b) Each Company Material Contract is valid and binding and in full force and effect and the
Company and each of the Company Subsidiaries has performed all obligations required to be performed
by them to date under each Company Material Contract, the failure of which, individually or in the
aggregate, have a Material Adverse Effect. Except as set forth on Section 2.12 of the Parent
Disclosure Letter, and except for such matters as have not had, and could not reasonably be
expected to have, individually or in the aggregate, a Material Adverse Effect (i) none of Parent,
the Company or any of the Company Subsidiaries has received written notice of, and to Parent’s or
the Company’s Knowledge, there does not exist, any breach of or violation or default under any of
the terms, conditions or provisions of any Company Material Contract and (ii) neither Parent, the
Company nor any of the Company Subsidiaries has received written notice of, and to Parent’s or the
Company’s Knowledge there does not exist, the desire of the other party or parties to any such
Company Material Contract to exercise any rights such party has to cancel, terminate or repudiate
such Company Material Contract or exercise remedies thereunder. Each Company Material Contract is
enforceable by the Company or a Company Subsidiary in accordance with its terms, except as such
enforcement may be subject to or limited by (x) bankruptcy, insolvency, reorganization, moratorium
or other Laws, now or hereafter in effect, affecting creditors’ rights generally and (y) the effect
of general principles of equity (regardless of whether enforceability is considered in a proceeding
at law or in equity).

 

15

 

(c) Except for the Company Credit Agreement and except as disclosed in Section 2.12 of the
Parent Disclosure Letter, no agreement relating to any indebtedness for borrowed money of the
Company or any of the Company Subsidiaries contains any restrictions (other than customary notice
provisions) upon (i) the prepayment of any indebtedness of the Company or any of the Company
Subsidiaries, (ii) the incurrence by the Company or any of the Company Subsidiaries of any
indebtedness for borrowed money, or (iii) the ability of the Company or any of the Company
Subsidiaries to grant any Lien on the properties or assets of the Company or any of the Company
Subsidiaries. Under the terms of the Company Credit Agreement, the Company is permitted to prepay,
upon 30 days prior written notice and without any form of prepayment penalty, all indebtedness
outstanding thereunder and obtain a release of all Liens on the assets of the Company and the
Company Subsidiaries which secure such indebtedness.

2.13 Customers and Suppliers. Section 2.13 of the Parent Disclosure Letter sets forth
the 15 largest customers of the Company and the Company Subsidiaries (including, without
limitation, primary contractors for which the Company or the Company Subsidiaries provide goods or
services as subcontractors) by revenue for the fiscal year ended June 27, 2010, and for the eleven
months ended May 31, 2011 (“Material Customers”). Since June 27, 2010, except as disclosed
in Section 2.13 of the
Parent Disclosure Letter, (a) no Material Customer of the Company or any of the Company
Subsidiaries has canceled or terminated its relationship with the Company or any of the Company
Subsidiaries, (b) no Material Customer of the Company or any of the Company Subsidiaries has
overtly threatened in writing, and to Parent’s or the Company’s Knowledge, has not threatened to
cancel or renegotiate, terminate (other than pursuant to the termination provisions contained in
such currently existing agreements with such Material Customers) or modify (other than
modifications in the ordinary course of performing a contract) its relationship with the Company or
any of the Company Subsidiaries or its usage of the services of the Company or any of the Company
Subsidiaries, and (c) the Company and the Company Subsidiaries have no direct or indirect ownership
interest that is material to the Company and the Company Subsidiaries taken as a whole in any
customer of the Company or any of the Company Subsidiaries.

2.14 Employee Benefit Plans.

(a) Section 2.14(a) of the Parent Disclosure Letter sets
forth a true and complete list of all written and oral plans, programs, arrangements or agreements
which the Company or any of the Company Subsidiaries either sponsor, maintain or contribute to or
have any obligation to maintain or contribute to, or have any direct or indirect liability, whether
contingent or otherwise, and under which any current or former officer or director, employee,
leased employee or consultant (or their respective beneficiaries) of the Company or the Company
Subsidiaries has any present or future right to receive any pension, profit-sharing, savings,
retirement, employment or consulting (excluding any unwritten agreement that provides de minimis
working condition fringe benefits and is terminable unilaterally by the Company or any of the
Company Subsidiaries without liability), severance pay, termination, executive

 

16

 

  compensation,
incentive compensation, deferred compensation, bonus, stock purchase, stock option, phantom stock
or other equity-based compensation, change-in-control, retention, salary continuation, vacation,
sick leave, disability, death benefit, group insurance, hospitalization, medical, dental, life
(including all individual life insurance policies as to which the Company is the owner, the
beneficiary, or both), Code Section 125 “cafeteria” or “flexible” benefit plans, employee loan,
educational assistance or other similar benefit plans, policies or arrangements (each a
“Company Employee Benefit Plan”). The Company Employee Benefit Plans include, without
limitation, any (i) “employee benefit plan” within the meaning of Section 3(3) of the Employee
Retirement Income Security Act of 1974 (“ERISA”) or (ii) other employee benefit plans,
agreements, programs, policies, arrangements or payroll practices, whether or not subject to ERISA
(including any funding mechanism therefor now in effect or required in the future as a result of
the transaction contemplated by this Agreement or otherwise).

(b) Except as described in Section 2.14(b) of the Parent Disclosure Letter, the Company, its
Subsidiaries and its ERISA Affiliates do not maintain, contribute or have any liability, whether
contingent or otherwise, with respect to, and have not within the preceding six years maintained,
contributed or had any liability, whether contingent or otherwise, with respect to any employee
benefit plan, program, agreement or arrangement (including, for such purpose, any “employee benefit
plan,” within the meaning of Section 3(3) of ERISA, which the Company, the Company Subsidiaries or
an ERISA Affiliate previously maintained or contributed to within such preceding six years), that
is, or has been, (i) subject to Title IV of ERISA (a “Title IV Plan”) or Section 412 of the
Code, (ii) maintained by more than one employer within the
meaning of Section 413(c) of the Code, (iii) subject to Sections 4063 or 4064 of ERISA, (iv) a
“multiemployer plan,” within the meaning of Section 4001(a)(3) of ERISA, (v) a “multiple employer
welfare arrangement” as defined in Section 3(40) of ERISA, (vi) funded by a voluntary employees’
beneficiary association within the meaning of Section 501(c)(9) of the Code or (vii) an “employee
pension benefit plan” within the meaning of Section 3(2) of ERISA and that is not intended to be
qualified under Section 401(a) of the Code. For purposes of this Section 2.14, “ERISA
Affiliate” means any Person that would be considered a single employer with the Company under
Sections 414(b), (c), (m) or (o) of the Code.

(c) Each Company Employee Benefit Plan has been established and administered in all material
respects in accordance with its terms and in compliance with the applicable provisions of ERISA,
the Code and all other applicable Laws. All reports, returns, notices and other documentation with
respect to each Company Employee Benefit Plan that are required to have been filed with or
furnished to the Internal Revenue Service (the “IRS”), the United States Department of
Labor (“DOL”) or any other Governmental Entity, or to the participants or beneficiaries of
such Company Employee Benefit Plan, have been filed or furnished on a timely basis, or there is a
remaining period of time in which to timely file. Each Company Employee Benefit Plan that is
intended to be qualified within the meaning of Section 401(a) of the Code is so qualified and has
received a favorable determination letter or is subject to an opinion letter from the IRS to the
effect that the Company Employee Benefit Plan satisfies the requirements of Section 401(a) of the
Code and that its related trust is exempt from taxation under Section 501(a) of the Code, and to
Parent’s or the Company’s Knowledge, there are no facts or circumstances that could reasonably be
expected to cause the loss of such qualification or the

 

17

 

imposition of any material liability,
penalty or tax under ERISA, the Code or any other
applicable Laws. Other than routine claims for
benefits, no Liens, lawsuits or complaints to or by any Person or Governmental Entity have been
filed against any Company Employee Benefit Plan or the Company with respect to any Company Employee
Benefit Plan or, to Parent’s or the Company’s Knowledge, against any other Person relating to a
Company Employee Benefit Plan and, to Parent’s or the Company’s Knowledge, no such Liens, lawsuits
or complaints are contemplated or threatened with respect to any Company Employee Benefit Plan or
the Company with respect to any Company Employee Benefit Plan. No individual who has performed
services for the Company has been improperly excluded from participation in any Company Employee
Benefit Plan. The Company has not initiated any proceedings pursuant to the IRS Employee Plans
Compliance Resolution System (currently set forth in Revenue Procedure 2008-50), the Company has
made the required payments and filings necessary to satisfy the requirements of the DOL’s
Delinquent Filer Voluntary Fiduciary Correction Program and the DOL’s Voluntary Fiduciary
Compliance Program with respect to all returns, reports or other documentation required to have
been filed with the IRS or the DOL and that initially were not properly filed, and there are no
audits or similar proceedings pending with the IRS or the DOL with respect to any Company Employee
Benefit Plan.

(d) For each Title IV Plan set forth in Sections 2.14(a) and (b) of the Parent Disclosure
Letter, as of the last day of the most recent plan year ended prior to the date hereof, there is no
“amount of unfunded benefit liabilities,” as defined in Section 4001(a)(18) of ERISA, and there has
been no material change in the financial condition of any such Title IV Plan since the last day of
its most recent fiscal year.

(e) There has been no “reportable event,” as that term is defined in Section 4043 of ERISA and
the regulations thereunder, with respect to any Title IV Plan set forth in Sections 2.14(a) and (b)
of the Parent Disclosure Letter that would require the giving of notice or any event requiring
disclosure under Section 4041(c)(3)(C) or 4063(a) of ERISA, and neither the execution and delivery
of this Agreement nor the consummation of the transactions contemplated hereby will constitute a
reportable event.

(f) Neither the Company nor any ERISA Affiliate has terminated any Title IV Plan set forth in
Sections 2.14(a) and (b) within the last six years or incurred any outstanding liability under
Section 4062 of ERISA to the Pension Benefit Guaranty Corporation (the “PBGC”), or to a
trustee appointed under Section 4042 of ERISA, which could result in liability of the Company or
any of the Company Subsidiaries. All premiums due the PBGC with respect to the Title IV Plans set
forth in Sections 2.14(a) and (b) of the Parent Disclosure Letter have been paid. Neither the
Company nor any ERISA Affiliate has filed a notice of intent to terminate any Title IV Plan set
forth in Section 2.14(a) of the Parent Disclosure Letter and has not adopted any amendment to treat
such Title IV Plan as terminated. The PBGC has not instituted or, to Parent’s or the Company’s
Knowledge, threatened to institute, proceedings to treat any Title IV Plan set forth in Sections
2.14(a) and (b) of the Parent Disclosure Letter as terminated. No event has occurred or
circumstance exists that may constitute grounds under Section 4042 of ERISA for the termination of,
or the appointment of a trustee to administer, any Title IV Plan set forth in Sections 2.14(a) and
(b) of the Parent Disclosure Letter.

 

18

 

(g) Neither the Company nor any of its ERISA Affiliates or organizations to which the Company
or an ERISA Affiliate is a successor, within the meaning of Section 4069(b) of ERISA, has engaged
in any transaction described in Sections 4069 or 4212(c) of ERISA.

(h) Neither the Company nor, to Parent’s or the Company’s Knowledge, any other “party in
interest” or “disqualified person” with respect to any Company Employee Benefit Plan has engaged in
a non-exempt “prohibited transaction” within the meaning of Section 406 of ERISA or Section 4975 of
the Code involving such Company Employee Benefit Plan which, individually or in the aggregate,
could reasonably be expected to subject the Company to a tax or penalty imposed by Section 4975 of
the Code or Sections 501, 502 or 510 of ERISA. To Parent’s or the Company’s Knowledge, no
fiduciary has any liability for breach of fiduciary duty or any other failure to act or comply with
the requirements of ERISA, the Code or any other applicable Laws in connection with the
administration or investment of the assets of any Company Employee Benefit Plan.

(i) All liabilities or expenses of the Company which have not been paid in respect of any
Company Employee Benefit Plan have been properly accrued as a Liability on the Company’s Financial
Statements in compliance with GAAP. All contributions (including all employer contributions and
employee salary reduction contributions) or premium payments required to have been made under the
terms of any Company Employee Benefit Plan, or in accordance with applicable Law, have been timely
made or reflected on the Company’s financial statements in accordance with GAAP.

(j) Neither the Company nor any Company Subsidiary has any obligation to provide or make
available any post-employment benefit under any Company Employee Benefit
Plan which is a “welfare plan” (as defined in Section 3(1) of ERISA) (“Welfare Plan”)
for any current or former officer, director, employee, leased employee, consultant or agent (or
their respective beneficiaries) of the Company or any of the Company Subsidiaries, except as may be
required under the Consolidated Omnibus Budget Reconciliation Act of 1985 (“COBRA”) or
other applicable Law, and at no expense to the Company or any Subsidiary of the Company except as
imposed by applicable Law.

(k) Except for as described in Section 2.14(k) of the Parent Disclosure Letter, neither the
execution and delivery of this Agreement nor the consummation of the transactions contemplated
hereby will (either alone or in combination with another event) (i) result in any payment becoming
due, or increase the amount of any compensation due, to any current or former officer, director,
employee, leased employee, consultant or agent (or their respective beneficiaries) of the Company
or any of the Company Subsidiaries; (ii) increase any benefits otherwise payable under any Company
Employee Benefit Plan; (iii) result in the acceleration of the time of payment or vesting of any
such compensation or benefits; (iv) result in a non-exempt “prohibited transaction” within the
meaning of Section 406 of ERISA or Section 4975 of the Code; or (v) result in the payment of any
amount that could, individually or in combination with any other such payment, constitute an
“excess parachute payment,” as defined in Section 280G(b)(1) of the Code. No current or former
officer, director, employee, leased employee, consultant or agent (or their respective
beneficiaries) has or will obtain a right to receive a gross-up payment from the Company with
respect to any excise taxes that may be imposed upon such individual pursuant to Section 409A of
the Code, Section 4999 of the Code or otherwise.

 

19

 

(l) Parent has made available to PESI with respect to each Company Employee Benefit Plan, to
the extent applicable: (i) the most recent documents constituting the Company Employee Benefit Plan
and all amendments thereto; (ii) any related trust agreement or other funding instrument and all
other material contracts currently in effect with respect to such Company Employee Benefit Plan
(including all administrative agreements, group insurance contracts and group annuity contracts);
(iii) the most recent IRS determination or opinion letter; (iv) the most recent summary plan
description, summary of material modifications and any other written communication (or a written
description of any oral communications) by the Company to its employees concerning the extent of
the benefits provided under a Company Employee Benefit Plan; (v) the three most recent (x) Forms
5500 and attached schedules, and (y) audited financial statements; and (vi) for the last three
years, all correspondence with the IRS, the DOL and any other Governmental Entity regarding the
operation or the administration of any Company Employee Benefit Plan.

(m) Neither the Company nor any of the Company Subsidiaries has any contract or commitment,
whether legally binding or not, to create any additional employee benefit or compensation plans,
policies or arrangements relating to the Company or any of the Company Subsidiaries or, except as
may be required by Law, to modify any Company Employee Benefit Plan.

(n) No disallowance of a deduction under Section 162(m) of the Code for any amount paid or
payable by the Company or any Company Subsidiaries has occurred or is reasonably expected to occur.
All Company Employee Benefit Plans that are subject to Section
409A of the Code are in compliance with the requirements of such Code Section and regulations
thereunder.

(o) Parent, the Company, the Parent Board, the Company Board or Parent’s compensation
committee have taken all actions necessary under the Company’s 2008 Equity Incentive Plan and each
other incentive program providing for the issuance of Company Common Stock or rights thereto or
equivalents therein (the “Company Stock Plans”) and the award agreements thereunder to
terminate all options or other awards granted under the Company Stock Plan and to terminated the
Company Stock Plan without any liability to the Company or any Company Subsidiary, and Parent and
the Company have made or will make available to PESI all documentation relating to such actions.

(p) Neither the Company nor any Company Subsidiary is liable to any employee under any
agreement (written or otherwise) providing for payment by the Company or any Company Subsidiary to
the employee immediately prior to or on or after the Closing for any cash amount set forth in such
agreement in exchange for the waiver by the employee of all of the employee’s rights and benefits
under the employee’s existing contractual agreements with the Company and any of the Company
Subsidiaries.

(q) Upon the expiration of the term of the contract between SEC Radcon Alliance, LLC with
Bechtel Jacobs Company, LLC, with respect to services provided to the Department of Energy, SEC
Radcon Alliance, LLC may incur withdrawal liability under ERISA §4201 with respect to the Betchel
Jacobs Company LLC Pension Plan. The 2010 Annual Funding Notice for the Betchel Jacobs Company LLC
Pension Plan states that as of January 1, 2010, the plan’s funded percentage is 82.46%.

 

20

 

2.15 Properties. 

(a) Section 2.15(a) of the Parent Disclosure Letter sets forth a true and complete list of all
real property, facilities and office space leased or subleased by or from the Company and the
Company Subsidiaries having an annual payment, individually, in excess of $50,000, together with
the physical address of and primary use for each such property. The Company and the Company
Subsidiaries do not own any real property.

(b) Each of the Company and the Company Subsidiaries has a valid leasehold interests or other
comparable contract right in, all its real properties and other assets necessary for the conduct of
its business as currently conducted, except as have been disposed of in the ordinary course of
business and except for defects in title, easements, restrictive covenants and similar encumbrances
that, individually or in the aggregate, have not materially interfered with, and could not
reasonably be expected to materially interfere with, its ability to conduct its business as
presently conducted. All such properties and other assets, other than properties and other assets
in which the Company or any of the Company Subsidiaries has a leasehold interest or other
comparable contract rights, are free and clear of all Liens, except for Permitted Liens and certain
Liens described in Section 2.15(b) of the Parent Disclosure Letter which were granted pursuant to
the Company Credit Agreement and which will be discharged upon payment of the indebtedness
outstanding under the Company Credit Agreement on or prior to the Closing. Except for any
violations or non-compliances which could, individually or in the aggregate, not
reasonably be expected to have a Material Adverse Effect, neither the Company nor any of the
Company Subsidiaries is in violation of any covenant, or not in compliance with any condition,
restriction, zoning, land use Law or Lien, affecting any leased real property.

(c) Each of the Company and the Company Subsidiaries has complied in all material respects
with the terms of all material leases to which it is a party and under which it is in occupancy,
and all leases to which the Company or any of the Company Subsidiaries is a party and under which
it is in occupancy are in full force and effect, except for any such failures to be in full force
and effect that have not had, and could not reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect. Each of the Company and the Company Subsidiaries is in
possession of the properties or assets purported to be leased under all its material leases.

(d) All items of operating equipment owned or leased by the Company and the Company
Subsidiaries are in good condition, ordinary wear and tear excepted. Neither the Company nor any of
the Company Subsidiaries has delivered, within the last twelve months, a notice to the landlord of
any leased real property complaining about the physical condition of such leased real property.

 

21

 

2.16 Taxes. 

(a) Except as otherwise disclosed in Section 2.16 of the Parent Disclosure Letter, (i) the
Company and the Company Subsidiaries have filed all Returns required to be filed by or with respect
to the Company and the Company Subsidiaries in accordance with all applicable Laws and all such
returns are true, correct and complete in all material respects; (ii) the Company and the Company
Subsidiaries have timely paid or deposited in full all Taxes due or claimed to be due, except for
those Taxes being contested in good faith and for which adequate reserves have been established in
the Financial Statements of the Company, and listed as a Liability in the Financial Statements;
(iii) all Employment and Withholding Taxes and any other material amounts required to be withheld
from any employee, contractor, customer, shareholder or other Person with respect to Taxes have
been withheld and either duly and timely paid to the proper Governmental Entity or properly set
aside in accounts for such purpose in accordance with applicable Laws; and (iv) all sales or
transfer Taxes required to be collected by the Company or any of the Company Subsidiaries have been
duly and timely collected, or caused to be collected, and either duly and timely remitted to the
proper Governmental Entity or properly set aside in accounts for such purpose in accordance with
applicable Laws. The charges, accruals and reserves for Taxes with respect to the Company and the
Company Subsidiaries are reflected as Liabilities in the Most Recent Company Balance Sheet and are
adequate under GAAP to cover Tax liabilities accrued through the date of such balance sheets, and
no deficiencies for any material Taxes have been asserted or assessed, or, to Parent’s or the
Company’s Knowledge, proposed, against the Company or any of the Company Subsidiaries that have not
been paid in full, except for those Taxes being contested in good faith and for which adequate
reserves have been established in such balance sheet. There is no judicial or administrative
action, suit, proceeding, investigation, audit or claim underway, pending or, to Parent’s or the
Company’s Knowledge, threatened or scheduled to commence, against or with respect to the Company or
any of the Company Subsidiaries in respect of any material Tax.

(b) Neither the Company nor any of the Company Subsidiaries has any liability for Taxes under
Treasury Regulations Section 1.1502-6 or any similar provision under the Laws of the United States,
any foreign jurisdiction or any state or locality.

(c) Other than any tax sharing agreements with Parent to be terminated as of the Closing,
there are no Tax sharing, allocation, indemnification or similar agreements (other than such an
agreement or arrangement exclusively between or among the Company and the Company Subsidiaries and
other than customary Tax indemnifications contained in credit or similar agreements) in effect as
between the Company or any of the Company Subsidiaries or any predecessor or affiliate of any of
them and any other Person under which the Company or any of the Company Subsidiaries could be
liable for any Taxes of any Person other than the Company or any Subsidiary of the Company;
provided, however, that the Company and the Company Subsidiaries file a consolidated income tax
return with Parent.

(d) Neither Parent, the Company nor any of the Company Subsidiaries has made an election under
former Section 341(f) of the Code, prior to repeal by the Jobs and Growth Tax Relief Act of 2003
(P.L. 108-27), which effect, directly or indirectly, the Company or any of the Company
Subsidiaries.

(e) Neither Parent, the Company nor any of the Company Subsidiaries has entered into an
agreement or waiver extending any statute of limitations relating to the payment or collection of
Taxes owing by the Company or the Company Subsidiaries or the time with respect to the filing of
any Tax Return relating to any Taxes owing by the Company or the Company Subsidiaries.

 

22

 

(f) There are no Liens for Taxes on any asset of the Company or the Company Subsidiaries,
except for Liens for Taxes being contested in good faith and for which adequate reserves are
reflected in the Financial Statements and such are noted as a Liability in the Financial
Statements.

(g) Neither the Company nor any of the Company Subsidiaries has requested or is the subject of
or bound by any private letter ruling, technical advice memorandum, closing agreement or similar
ruling, memorandum or agreement with any Governmental Entity with respect to any material Taxes,
nor is any such request outstanding.

(h) Each of the Company and the Company Subsidiaries has disclosed on its Returns all material
positions taken therein that could give rise to a “substantial understatement of income tax” within
the meaning of Section 6662 of the Code.

(i) Neither the Company nor any of the Company Subsidiaries has entered into, has any
Liability in respect of, or has any filing obligations with respect to, any transaction that
constitutes a “reportable transaction,” as defined in Treasury Regulations Section 1.6011-4(b)(1).

(j) Neither the Company nor any of the Company Subsidiaries (i) will be required to include
any material item of income in, or exclude any material item of deduction from, taxable income for
any taxable period (or portion thereof) ending after the Closing Date as a result of the
installment method of accounting, the long-term contract method of accounting,
the cash method of accounting or any change in method of accounting for a taxable period
ending on or prior to the Closing Date under Section 481(a) of the Code (or any corresponding or
similar provision of state, local or foreign Tax Law) or (ii) is a party to a “closing agreement”
as described in Section 7121 of the Code (or any corresponding or similar provision of state, local
or foreign Tax Law) executed on or prior to the Closing Date.

(k) Except as shall occur in connection with the Acquisition, no ownership change (within the
meaning of Section 382(g) of the Code) has occurred for the Company or any of the Company
Subsidiaries that has caused or will cause a Section 382 limitation (within the meaning of Section
382(b) of the Code) to become applicable.

(l) Neither the Company nor any of the Company Subsidiaries has distributed the stock of any
corporation, or had its stock distributed by another Person, in a transaction satisfying or
intended to satisfy the requirements of Code Section 355 or Section 361. Neither the Company nor
any of the Company Subsidiaries has been, within the past two years, a “distributing corporation”
or a “controlled corporation” (within the meaning of Section 355(a)(1)(A) of the Code), and neither
the Company nor any of the Company Subsidiaries has been, within the past two years or otherwise, a
party to a “plan (or series of related transactions)” (within the meaning of Section 355(e) of the
Code) of which the Acquisition is a part, in which the Company or any of the Company Subsidiaries
is a “distributing corporation” or a “controlled corporation” (within the meaning of Section
355(a)(1)(A) of the Code) in a distribution of stock intending to qualify for tax-free treatment
under Section 355 of the Code.

 

23

 

(m) Parent and the Company have made available to PESI correct and complete copies of (i) all
U.S. federal and state Returns of Parent, the Company and the Company Subsidiaries relating to
taxable periods ending on or after December 31, 2004, filed through the date hereof, (ii) any audit
report (or notice of proposed adjustment to the extent not included in an audit report) within the
last three years relating to any material Taxes due from or with respect to the Company or any of
the Company Subsidiaries, and (iii) any substantive correspondence and memoranda relating to the
matters described in clause (ii) of this Section 2.16(m).

(n) Neither the Company nor any of the Company Subsidiaries is obligated to make any payment
of any salary or compensation that is not deductible under Section 162(a) of the Code or that is an
“excess parachute payment” as defined in Section 280G of the Code.

(o) Each of the Company’s Subsidiaries is a United States person for purposes of the Code.

(p) Other than Safety and Ecology Corporation Limited, a United Kingdom corporation, neither
the Company nor any of the Company Subsidiaries is or has ever been a Real Property Holding
Corporation within the meaning of Section 897(c)(2) of the Code.

2.17 Environmental Matters. Except as described in Section 2.17 of the Parent
Disclosure Letter:

(a) Each of the Company and the Company Subsidiaries is in compliance with all applicable Laws
relating to (i) the protection of human health, welfare, the environment, natural resources, plant
or animal life, or ecological systems, (ii) worker or public safety, (iii) the use, generation,
handling, treatment, storage, disposal, discharge, release, emission, transportation of or exposure
to Hazardous Materials), including, but not limited to, the Comprehensive Environmental Response,
Compensation, and Liability Act of 1980, 42 U.S.C. § 9601, et seq. (“CERCLA”), the Resource
Conservation and Recovery Act of 1976, 42 U.S.C. § 6901, et seq., the Clean Air Act, 42 U.S.C. §
7401, et seq., the Federal Water Pollution Control Act, 33 U.S.C. § 1251, et seq., the Oil
Pollution Act of 1990, 33 U.S.C. § 2701, et seq., the Toxic Substances Control Act, 15 U.S.C. §
2601 et seq., the Endangered Species Act, 16 U.S.C. § 1531 et seq., the Safe Drinking Water Act, 42
U.S.C. § 300f et seq., and the Atomic Energy Act, 42 U.S.C. § 2011 et seq., as each has been
amended, and the regulations promulgated or directives issued pursuant thereto, as well as any
analogous applicable international, foreign, state or local Laws (collectively, “Environmental
Laws”).

(b) Each of the Company and the Company Subsidiaries has obtained all Permits required for the
operations of the Company and the Company Subsidiaries under all applicable Environmental Laws
(“Environmental Permits”), and made all filings and maintained all material data,
documentation and records as required under such Permits and all applicable Environmental Laws, and
all such Permits and filings remain in full force and effect. Neither the Company nor any of the
Company Subsidiaries is in default or violation, nor has received from any Governmental Entity any
written, or to the Parent’s or the Company’s Knowledge, any verbal notice of default, nor, to
Parent’s or the Company’s Knowledge, has any event occurred which, with notice or the lapse of time
or both, could reasonably be expected to constitute a material default or violation, of any term,
condition or provision of any such Permit to which it is a party or by which it is bound or of any
term, condition or provision under any contract or agreement to which it is a party or by which it
is bound establishing environmental, health or safety obligations. Section 2.17(b) of the Parent
Disclosure Letter contains a true and complete list of all Environmental Permits now held by the
Company and the Company Subsidiaries, and true and complete copies of such Permits have been made
available to PESI.

 

24

 

(c) Except as described in Section 2.17(c) of the Parent Disclosure Letter, to Parent’s or the
Company’s Knowledge, there are no conditions or circumstances related to any property currently or
formerly owned or leased by the Company or any of the Company Subsidiaries or on which the Company
or any of the Company Subsidiaries conducts or conducted any operations and which conditions or
circumstances arise or arose from the operations of the Company, or for which the Company or any of
the Company Subsidiaries have otherwise assumed responsibility that could reasonably be expected to
subject any of them to liability or obligations under Environmental Laws, that could reasonably be
expected to result in a material fine or penalty, material expenditure, or material impact on
operations of the Company and the Company Subsidiaries taken as a whole.

(d) To Parent’s or the Company’s Knowledge, no Hazardous Material has been released into the
environment on or from any property currently or formerly owned or leased by the Company or the
Company Subsidiaries which is required, under applicable Environmental Laws or the terms of any
Permit or contract to which the Company or any of the Company Subsidiaries is a party or is bound,
to be investigated, abated, remediated by the
Company or any of the Company Subsidiaries or would otherwise impose a Cleanup obligation on
the Company or any of the Company Subsidiaries.

(e) No Governmental Entity or other Person has asserted in writing or, to Parent’s or the
Company’s Knowledge, threatened or has grounds to assert a claim, make a demand, or institute any
administrative proceeding, enforcement action, lawsuit, investigation or other proceeding against,
the Company or any of the Company Subsidiaries relating to a failure to comply with Environmental
Laws in any material respect that could reasonably be expected to result in a material fine or
penalty, material expenditure, or material impact on operations.

(f) Neither the Company nor any of the Company Subsidiaries has received any written notice of
violation or compliance orders or complaints under applicable Environmental Laws from any
Governmental Entity or other Person that has not been resolved.

(g) Neither the Company nor any of the Company Subsidiaries (nor to Parent’s or the Company’s
Knowledge, any predecessor of the Company or any of the Company Subsidiaries) has used any waste
disposal site, or otherwise disposed of, transported, or arranged for the transportation of, any
Hazardous Materials to any place or location (i) in material violation of any Environmental Laws,
(ii) listed on the “National Priorities List” established under CERCLA or any comparable list of
sites under the laws of states or foreign jurisdictions, or (iii) in a manner that has given or
would reasonably expected to give rise to material liabilities pursuant to any Environmental Laws.
Section 2.17(g) of the Parent Disclosure Letter contains a true and complete list of all disposal
sites or facilities owned or leased by Persons other than the Company and the Company Subsidiaries
which have been used by the Company or the Company Subsidiaries for the disposal of any Hazardous
Materials.

 

25

 

(h) Except as described in the Environmental Reports described in Section 2.17(h), there are,
to the Knowledge of Parent or the Company, no past or present conditions, events, circumstances,
facts, activities, practices, incidents, actions, omissions or plans that could reasonably be
expected to give rise to any material liability on the Company or any of the Company Subsidiaries
under applicable Environmental Laws.

(i) Section 2.17(i) of the Parent Disclosure Letter contains a true and complete list of all
material environmental assessments, material audits, and any other material reports, studies,
analyses, tests, or monitoring possessed or initiated by the Company or the Company Subsidiaries
(all, collectively, “Environmental Reports”) in connection with or pertaining to compliance
with, or potential liability under, any Environmental Laws at property owned or leased by the
Company or any of the Company Subsidiaries. The Company has delivered, or made available, to PESI
true and complete copies of such Environmental Reports.

(j) Section 2.17(j) of the Parent Disclosure Letter contains a true and complete list of all
guaranties, performance bonds, letters of credit, insurance policies and other forms of financial
assurance which have been provided by the Company and the Company Subsidiaries to any Governmental
Entity and are now outstanding in connection with each Environmental Permit now held by the Company
or any of the Company Subsidiaries.

2.18 Labor Matters; Employees. 

(a) Except as described in Section 2.18(a) of the Parent Disclosure Letter, (i) none of the
Company or any of the Company Subsidiaries is a party to or bound by any collective bargaining or
similar agreement with any labor organization, or work rules or practices agreed to with any labor
organization or employee association applicable to employees of the Company or any of the Company
Subsidiaries, (ii) none of the employees of the Company or any of the Company Subsidiaries are
represented by any labor organization, and (iii) to Parent’s or the Company’s Knowledge, there are
no current union organizing activities among the employees of the Company or any of the Company
Subsidiaries.

(b) Except as described in Section 2.18(b) of the Parent Disclosure Letter, none of the
Company or any of the Company Subsidiaries is, or since June 30, 2008 has been, subject to any
pending or, to Parent’s or the Company’s Knowledge, threatened, (i) labor strike, dispute,
slowdown, work stoppage or lockout, (ii) written notice or written claim asserting that the Company
or any of the Company Subsidiaries is not in compliance with any applicable Law respecting
employment and employment practices, terms and conditions of employment, wages, hours of work, or
occupational safety and health practices, (iii) unfair labor practice charge or complaint against
the Company or any of the Company Subsidiaries before the National Labor Relations Board or any
similar state or foreign agency, (iv) grievance or arbitration proceeding arising out of any
collective bargaining agreement or other grievance procedure relating to the Company or any of the
Company Subsidiaries, (v) citation issued by the Occupational Safety and

 

26

 

Health Administration or
any other similar foreign, federal or state agency relating to the Company or any of the Company
Subsidiaries, (vi) claim submitted to a Governmental Entity or an investigation or other proceeding
by a Governmental Entity, whether initiated by an employee or Governmental Entity, with respect to
employment, terms or conditions of employment or working conditions, including any charges
submitted to the Equal Employment Opportunity Commission or state employment practice agency,
audits by the DOL or state agency with respect to wages and hours of work or investigations
regarding Fair Labor Standards Act compliance, audits by the Office of Federal Contractor
Compliance Programs, or workers’ compensation claims, or (vii) claim, suit, action or governmental
investigation, in respect of which any director, officer, employee or agent of the Company or any
Company Subsidiary is or may be entitled to claim indemnification from the Company or any Company
Subsidiary.

(c) Each of the Company and the Company Subsidiaries is in compliance with all applicable Law
respecting employment and employment practices, terms and conditions of employment, wages, hours of
work, occupational safety and health and unfair labor practices. None of the Company or any Company
Subsidiary has any liabilities under the Worker Adjustment and Retraining Act and the regulations
promulgated thereunder (the “WARN Act”) or any similar Law as a result of any action taken
by the Company or any of the Company Subsidiaries that could reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect.

(d) Section 2.18(d) of the Parent Disclosure Letter contains a true, complete and correct list
of the names of all directors and officers of the Company and each of the Company Subsidiaries,
together with such Person’s position or function. The Company has previously made available to PESI
true and correct information with respect to each such
officer’s annual base salary or wages, target bonus percentage and amount for 2009, 2010, and
2011, and any of the Company Subsidiaries currently estimated severance payment due as a result of
the Acquisition, assuming such Person’s employment is terminated in connection therewith.

2.19 Affiliate Transactions. Section 2.19 of the Parent Disclosure Letter contains a
true, complete and correct list of all agreements, contracts, transfers of assets or liabilities or
other commitments or transactions (other than Company Employee Benefit Plans described in Section
2.14 of the Parent Disclosure Letter and the Company Material Contracts), whether or not entered
into in the ordinary course of business, between the Company or any of the Company Subsidiaries, on
the one hand, and any of their respective Affiliates (other than the Company or any of its Company
Subsidiaries) on the other hand, that (i) are currently pending, in effect or have been in effect
at any time since June 30, 2008 or (ii) involve continuing liabilities and obligations that,
individually or in the aggregate, have been, are or could be material to the Company and the
Company Subsidiaries taken as a whole. Each such agreement, contract, transfer of assets or
liabilities or other commitment or transaction contains terms no less favorable to the Company or
to such Company Subsidiary than could be obtained with an unaffiliated third party on an
arm’s-length basis.

 

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2.20 Disclosure Controls and Procedures.

(a) The Company has established and maintains “disclosure controls and procedures” (as defined
in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) that are reasonably designed to ensure that
all material information (both financial and non-financial) required to be disclosed by the Company
in the reports that Parent files or submits under the Exchange Act is recorded, processed,
summarized and reported within the time periods specified in the rules and forms of the U.S.
Securities and Exchange Commission (the “SEC”) and that all such information is accumulated
and communicated to Parent’s management as appropriate to allow timely decisions regarding required
disclosure and to make the certifications of the chief executive officer and chief financial
officer of Parent required under the Exchange Act with respect to such reports. Since January 1,
2008, Parent has not identified, and has not been advised by its independent auditors as to, any
“significant deficiencies” or “material weaknesses” in the Company’s or any of the Company
Subsidiaries’ internal controls as contemplated under Section 404(a) of the Sarbanes-Oxley Act of
2002 (“SOX”).

(b) Except as disclosed on Section 2.20 of the Parent Disclosure Letter, since June 27, 2010,
none of the Company, any of the Company Subsidiaries nor the auditor or accountant of the Company
or any of the Company Subsidiaries has received any material complaint, allegation, assertion or
claim, whether written or oral, regarding the accounting or auditing practices, procedures,
methodologies or methods of the Company or any of the Company Subsidiaries, including any material
complaint, allegation, assertion or claim that the Company or any of the Company Subsidiaries has a
`significant deficiency” or “material weakness” (as such terms are defined in the Public Company
Accounting Oversight Board’s Auditing Standard No. 2, as in effect on the date hereof) in the
Company’s or such Subsidiary’s internal control over financial reporting.

2.21 Insurance. Section 2.21 of the Parent Disclosure Letter lists each insurance
policy (including fire and casualty, general liability, workers’ compensation, employment
practices, liability, pollution liability, directors and officers and other liability policies)
owned by the Company or any of the Company Subsidiaries or which names the Company or any of the
Company Subsidiaries as an insured (or loss payee) or self-insurance arrangements that are
currently in effect, and the Company has made available to PESI a true and complete copy of each
such policy or the binder therefore, but excluding any such policy maintained in connection with a
Company Employee Benefit Plan made available pursuant to Section 2.14(l). Each such policy is in
full force and effect, is in such amount and covers such losses and risks as is reasonable, in the
judgment of senior management of the Company, to protect the properties and businesses of the
Company and the Company Subsidiaries, and all premiums due under each such policy have been paid.
With respect to each such insurance policy, none of the Company, any of the Company Subsidiaries
or, to Parent’s and the Company’s Knowledge, any other party to the policy is in breach or default
thereunder (including with respect to the payment of premiums or the giving of notices), and to
Parent’s and the Company’s Knowledge, no event has occurred that (with notice or the lapse of time
or both) would constitute such a breach or default or permit termination under the policy, except
for such breaches or defaults which have not had or could not reasonably be expected to have,
individually or in the aggregate, a Material Adverse Effect. None of the Company or any of the
Company Subsidiaries has been refused to purchase any insurance with respect to its assets or
operations since April 1, 2008.

 

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2.22 Intellectual Property. 

(a) Schedule 2.22(a) of the Parent Disclosure Letter (i) lists all U.S., international
and foreign patents, published patent applications, trademark and service mark applications and
registrations, copyright registrations (the “Registered IP”), as well as custom software
(not including off-the-shelf software) which are part of the Company IP and are owned or licensed
by the Company or any Company Subsidiary or are material to the business of the Company or any
Company Subsidiary as currently conducted, (ii) indicates the owner of the Registered IP, (iii)
lists all agreements (excluding shrinkwrap or other similar licenses with respect to
off-the-shelf-software) whereby the Company or any Company Subsidiary has the legal right to use
any Company IP which the Company or any Company Subsidiary does not own, and (iv) lists all
agreements whereby the Company or any of the Company Subsidiaries has granted to any Person the
right to use any Company IP that the Company or any Company Subsidiary owns.

(b) The Company or the Company Subsidiaries owns or has the legal right to use, free and clear
of all Liens, all the Company IP, in each case free of any claims or infringements known to the
Company or any of the Company Subsidiaries. The Registered IP identified on Section 2.22(a) of the
Parent Disclosure Letter as being owned by the Company or a Company Subsidiary is owned by either
the Company or such Company Subsidiary. No consent of any Person will be required for the use of
any of the Company IP by PESI or any of its Subsidiaries in connection with the conduct of the
business now being conducted by the Company and the Company Subsidiaries. No governmental
registration of any of the Registered IP has lapsed or expired or been canceled, abandoned, opposed
or the subject of any
reexamination request, and the Company and each of the Company Subsidiaries has diligently
protected its legal rights to the Company IP, including paying all fees and meeting all deadlines
reasonably necessary to maintain the Registered IP. To the Knowledge of Parent, the Company and
the Management Investors, the Company IP is sufficient to enable the Company and all of the Company
Subsidiaries, following the Acquisition, to operate the business of the Company and the Company
Subsidiaries as currently conducted.

(c) There is no prohibition or restriction invoked by a Governmental Entity on the use of any
of the Company IP, except for any prohibitions or restrictions imposed by any Law pursuant to which
such Company IP has been established, and no Claim against the Company or any of the Company
Subsidiaries regarding any Company IP is pending or, to Parent’s or the Company’s Knowledge,
threatened. To Parent’s or the Company’s Knowledge, no Person is infringing or misappropriating the
Company IP, and to Parent’s or the Company’s Knowledge, no product or service of the Company or any
of the Company Subsidiaries infringes or misappropriates the Intellectual Property of any Person.
Neither Parent, the Company nor any of the Company Subsidiaries has received any written charge,
complaint, claim or notice alleging any infringement, misappropriation or violation by the Company
or any of the Company Subsidiaries of the Intellectual Property of any Person or alleging that the
operation of the business of the Company or any of the Company Subsidiaries as currently conducted
requires a license to the Intellectual Property of any Person. Neither Parent, the Company nor any
of the Company Subsidiaries has received any charge, complaint, claim or notice that any of the
Registered IP is unenforceable or invalid.

 

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(d) The execution, delivery and performance of this Agreement and the consummation of the
transactions contemplated hereby will not (i) constitute a breach of any instrument or agreement
governing any Company IP other than consents required for licenses, (ii) cause the forfeiture or
termination or give rise to a right of forfeiture or termination of any Company IP or (iii) to
Parent’s or the Company’s Knowledge, otherwise impair the right of PESI, the Surviving Entity or
their Subsidiaries, following the Acquisition, to use or otherwise exploit, assert or enforce any
Company IP.

(e) No employee of the Company or any of the Company Subsidiaries has entered into any
contract or agreement that restricts or limits in any way the scope or type of work in which the
employee may be engaged or requires the employee to transfer, assign, or disclose information
concerning such employee’s work to anyone other than the Company or the Company Subsidiaries. Each
Person who has participated in the authorship, invention or creation of Company IP (other than
those rights required to be listed pursuant to Section 2.22(a)(iii)) has entered into an agreement
with the Company or the applicable Company Subsidiary assigning all rights, title and interests in
such Company IP to the Company or such Subsidiary. Neither the Company nor any of the Company
Subsidiaries has received written notice from any of its current or prior directors, officers,
employees, consultants or contractors claiming to have an ownership interest in any of the Company
IP and, to Parent’s or the Company’s Knowledge, there is no basis for any such claim.

2.23 Derivative Transactions and Hedging. There are no outstanding commodity, financial or other hedging positions entered into by the
Company or any Company Subsidiary or for the account of any of its customers as of the date of this
Agreement.

2.24 Bank Accounts, Letters of Credit and Powers of Attorney. Section 2.24 of the
Parent Disclosure Letter lists (i) all bank accounts, lock boxes and safe deposit boxes relating to
the Business and operations of the Company and the Company Subsidiaries (including the name of the
bank or other institution where such account or box is located and the name of each authorized
signatory thereto), and (ii) all outstanding letters of credit issued by financial institutions for
the account of the Company or any of the Company Subsidiaries (setting forth, in each case, the
financial institution issuing such letter of credit, the maximum amount available under such letter
of credit, the expiration date of such letter of credit and the party or parties in whose favor
such letter of credit was issued), and (iii) the name and address of Person who has a power of
attorney to act on behalf of the Company or such Subsidiary. The Company has heretofore made
available to PESI true and complete copies of each such letter of credit.

2.25 Disclosure of Material Information. To the Parent’s or the Company’s Knowledge,
neither this Agreement (including the Schedules and Exhibits) nor any document, certificate, or
instrument furnished in connection herewith contains, with respect to the Company or any of the
Company Subsidiaries, any untrue statement of a material fact or omits to state a material fact
necessary to make the statements therein not misleading, except as would not, individually or in
the aggregate, be reasonably expected to have a Material Adverse Effect. There is no fact known to
Parent, the Company or any of the Company Subsidiaries which has or would reasonably be expected in
the future to result in a Material Adverse Effect and which has not been set forth in this
Agreement or in any other document delivered in connection herewith.

 

30

 

2.26 Brokers. Except for fees or commissions for which Parent is solely liable, no
broker, finder or investment banker is entitled to any brokerage, finder’s or other fee or
commission payable by the Company or any of the Company Subsidiaries in connection with the
transactions contemplated by this Agreement.

2.27 Accounts Receivable. The unpaid balance owing on all of the accounts receivable
and notes receivable of the Company and the Company Subsidiaries reflected in the Financial
Statements, as well as those arising between June 27, 2010, and the Closing, are and will be good
and collectible and will be paid in full in the ordinary and usual course of business, except to
the extent that a reserve against the accounts receivable has been established and is reflected on
the Estimated Company Balance Sheet.

2.28 PESI SEC Filings. Neither the information supplied, or to be supplied, by or on
behalf of Parent, the Company and/or any of the Company Subsidiaries for inclusion or
incorporation by reference into any document to be filed by PESI with the SEC in connection
with the Acquisition and the other transactions contemplated herein, contains or will, on the date
of its filing or at the date it is mailed to the stockholders of PESI, contain any untrue statement
of material fact or omit to state any material fact required to be stated therein or necessary to
make the statements therein, in light of the circumstances under which they were made, not
misleading. If, at any time prior to the Closing, any event with respect to Parent and/or the
Company or any of the Company Subsidiaries shall occur which is required under applicable SEC rules
to be described in the Information Statement or any of PESI SEC Filings, Parent shall promptly
disclose such event to PESI.

ARTICLE III.

RESERVED.

ARTICLE IV.

REPRESENTATIONS AND WARRANTIES REGARDING PESI

PESI hereby represents and warrants to Parent that, except as otherwise set forth in PESI’s
disclosure letter delivered to Parent at or prior to the execution of this Agreement (the “PESI
Disclosure Letter”), which letter has been arranged to correspond to the numbered and lettered
Sections in this Article IV, provided that disclosure of any item in any section of the PESI
Disclosure Letter shall not be deemed to be disclosed with respect to any other Section of this
Article IV):

4.1 Organization and Qualification; Subsidiaries.

(a) PESI is a corporation duly incorporated and validly existing in good standing under the
laws of the State of Delaware. PESI has the requisite corporate power and authority to own or lease
its properties and to carry on its business as it is now being conducted and as proposed to be
conducted, and is duly licensed or qualified to do business in each jurisdiction in which the
nature of the business conducted by it or the character of the properties owned or leased by it
makes such licensing or qualification necessary, except where the failure to be so licensed or
qualified has not had, and could not reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect.

 

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(b) Each Subsidiary of PESI, except for those PESI Subsidiaries that have been classified as a
discontinued operations in Section 4.1(b) of the PESI Disclosure Letter, (each a “PESI
Subsidiary”), (i) is duly incorporated and validly existing under the laws of its respective
jurisdiction of organization, (ii) has the requisite corporate or other business entity power and
authority to own or lease its properties and to carry on its business as it is now being conducted,
and (iii) is duly licensed or qualified to do business in each jurisdiction in which the nature of
the business conducted by it or the character of the properties owned or leased by it makes such
licensing or qualification necessary, in each case, except as has not had, and could not reasonably
be expected to have, individually or in the aggregate, a Material Adverse Effect.

(c) Section 4.1(c) of the PESI Disclosure Letter sets forth a true and complete list of all of
the PESI Subsidiaries, the state of incorporation or formation of each PESI
Subsidiary and, as of the date hereof, the jurisdictions in which each PESI Subsidiary is
qualified or licensed to do business.

4.2 Governing Documents. PESI has heretofore furnished to Parent true and complete
copies of its certificate of incorporation and bylaws (the “PESI Governing Documents”),
each as amended to date. The PESI Governing Documents are in full force and effect.

4.3 Capitalization. The authorized capital stock of PESI consists of 75,000,000
shares of PESI Common Stock and 2,000,000 shares of preferred stock, $0.001 par value per share
(“PESI Preferred Stock”). As of June 30, 2011, (i) 55,137,687 shares of PESI Common Stock
were issued and outstanding, but excluding shares held in treasury), all of which were validly
issued, fully paid and non-assessable, and none of which were issued in violation of any preemptive
or similar rights of any PESI securityholder, (ii) 38,210 shares of PESI Common Stock were held in
treasury, (iii) options to purchase an aggregate of 2,466,833 shares of PESI Common Stock
(“PESI Options”) were issued and outstanding, and (iv) no shares of PESI Preferred Stock
were issued and outstanding.

4.4 Authority; Due Authorization; Binding Agreement; Approval. 

(a) PESI has all requisite corporate power and authority to enter into this Agreement and to
perform its obligations under this Agreement.

(b) The execution, delivery and performance of this Agreement by PESI and the consummation by
PESI of the transactions contemplated hereby have been duly and validly authorized by all
requisite corporate action on the part of PESI.

(c) This Agreement has been duly executed and delivered by PESI and, assuming the due
authorization, execution and delivery hereof by Parent and the Company, constitutes a valid and
binding obligation of PESI, enforceable against PESI in accordance with its terms, except as
limited by bankruptcy, insolvency, moratorium, fraudulent transfer, reorganization and other Laws
of general applicability relating to or affecting the rights or remedies of creditors and by
general equitable principles (whether considered in a proceeding in equity or at law).

 

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(d) The Board of Directors of PESI, at a meeting duly called and held, duly adopted
resolutions unanimously (i) determining that this Agreement and the transactions contemplated
hereby are advisable and in the best interests of the stockholders of PESI and (ii) approving this
Agreement and transactions contemplated hereby and all other corporate action required to be taken
in connection with the consummation of the transactions contemplated hereby, which resolutions, as
of the date of this Agreement, have not been subsequently rescinded, modified or withdrawn in any
way.

4.5 No Violation; Consents. 

(a) Except as disclosed in Section 4.5 of the PESI Disclosure Letter, the execution and
delivery of this Agreement by PESI does not, and the consummation by PESI of the transactions
contemplated hereby will not (i) conflict with or violate the PESI Governing Documents, (ii)
constitute a breach or violation of, a default (or an event which, with notice or lapse of time or
both, would constitute such a default) under, require consent under, or give rise to a right of
termination, cancellation, creation or acceleration of any obligation, payment of any consent or
similar fee, or to the loss of any benefit under, or result in the creation of any Lien upon any of
the properties or assets of PESI under any indenture, mortgage, deed of trust, loan or credit
agreement, note, bond, lease or other agreement, instrument or Permit to which PESI is a party,
except the consent of PNC Bank, National Association (the “PESI Lender”) and the listing of
the PESI Shares on the Nasdaq Capital Market (“NASDAQ”) and compliance with the Securities
Act, the Exchange Act and other applicable federal and state securities laws in connection
herewith; (iii) (assuming that the consents and approvals referred to in Section 4.5(b) are duly
and timely made or obtained) conflict with or violate any Law or any Order of any Governmental
Entity to which PESI is subject or by which any of its properties are bound, except, in the case of
clause (ii) or (iii), for such conflicts, breaches, violations, consent requirements, terminations,
obligations, fees, loss of benefits, defaults or Liens, that have not had, and could not reasonably
be expected to have, individually or in the aggregate, a Material Adverse Effect.

(b) Except for (i) compliance with any applicable requirements of (x) the Securities Act, the
Exchange Act and any other applicable U.S. state or federal securities laws and (y) the NASDAQ,
(ii) authorizations, consents, approvals or filings under any Environmental Laws relating to the
transfer or issuance of Environmental Permits in connection with the Acquisition, (iii) consents
and approvals of the PESI Lender, and (iv) such other authorizations, consents, approvals or
filings the failure of which to obtain or make has not had, and could not reasonably be expected to
have, individually or in the aggregate, a Material Adverse Effect, no authorizations, consents or
approvals of, or filings with, any Governmental Entity or any third party is required to be
obtained or made by PESI for the execution and delivery by PESI of this Agreement or the
consummation by PESI of the transactions contemplated hereby.

4.6 Compliance. PESI is not, and at all times since January 1, 2011 has not been, in
(i) violation of its certificate of incorporation and bylaws, (ii) except as disclosed in Section
4.6 of the PESI Disclosure Letter, violation of any Law applicable to it or Order of any
Governmental Entity having jurisdiction over it, or (iii) except as disclosed in Section 4.6 of the
PESI Disclosure Letter, default in the performance of any obligation, agreement, covenant or
condition under any indenture, mortgage, deed of trust, loan, credit agreement, note, bond, lease
or other agreement, instrument or Permit to which PESI is a party or by which it or any of its
properties are bound or subject, except, in the case of clauses (ii) and (iii), for such violations
or defaults that have not had, and would not reasonably be expected to have, individually or in the
aggregate, a Material Adverse Effect.

 

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4.7 SEC Filings; Financial Statements. 

(a) PESI has timely filed all reports, registration statements, proxy statements and exhibits
to the foregoing documents required to be filed by it with the SEC since January 1, 2011
(collectively, the “PESI SEC Documents”). As of their respective dates of filing with the
SEC, (i) PESI SEC Documents complied in all material respects with the applicable requirements of
the Securities Act or the Exchange Act, as the case may be, and the rules and regulations
thereunder, and (ii) except to the extent that information contained in any PESI SEC Document has
been revised or superseded by a later-filed PESI SEC Document, none of PESI SEC Documents contained
any untrue statement of a material fact or omitted to state a material fact required to be stated
therein or necessary to make the statements therein, in light of the circumstances under which they
were made, not misleading. No PESI Subsidiary is currently required to file any form, report or
other document with the SEC under Section 13(a) or 15(d) of the Exchange Act. No event has occurred
since the filing of the most recent PESI SEC Documents that would require PESI to file a current
report on Form 8-K other than the execution of this Agreement and amendments to the loan agreement
with the PESI Lender.

(b) The historical financial statements of PESI, together with the related schedules and notes
thereto, included in PESI SEC Documents (i) comply as to form in all material respects with
applicable accounting requirements and the published rules and regulations of the SEC as of their
respective dates of filing with the SEC and (ii) present fairly the consolidated financial position
of PESI and its consolidated Subsidiaries at the dates indicated and the income, cash flows and
stockholders’ equity of PESI and its consolidated Subsidiaries for the periods specified; (except,
in the case of such unaudited financial statements, subject to normal year-end adjustments that are
not material in amount or significance in any individual case or in the aggregate). All of such
historical financial statements of PESI have been prepared in accordance with GAAP (except, in the
case of the unaudited statements, as permitted by the SEC) applied on a consistent basis throughout
the periods involved, except as noted therein.

4.8 Absence of Certain Changes or Events. Since January 1, 2011, there has not been
any event, circumstance, change, occurrence or state of facts that has had, or could reasonably be
expected to have, individually or in the aggregate, a Material Adverse Effect with respect to PESI.

4.9 Tax Returns, Payments and Elections. To PESI’s Knowledge, PESI has filed all tax
returns and reports (federal, state and local) as required by law, and such returns and reports are
true and correct in all material respects. To PESI’s Knowledge, PESI has paid all taxes and other
assessments due. PESI has not made any elections pursuant to the Code (other than elections that
relate solely to methods of accounting, depreciation or amortization) that would have a Material
Adverse Effect on PESI’s business, properties, assets or financial condition; except that PESI’s
consolidated income tax return for 2010 is on extension and has not been filed and the related
taxes, if any, have not been paid.

 

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4.10 Brokers. No broker, finder or investment banker is entitled to any brokerage,
finder’s or other fee or commission in connection with the transactions contemplated by this
Agreement based upon arrangements made by or on behalf of PESI.

4.11 Litigation. Except as disclosed in Section 4.11 of the PESI Disclosure Letter,
there is no action, suit, investigation or proceeding pending before or by any Person or, to PESI’s
Knowledge, threatened, against PESI or any of the PESI Subsidiaries or any of their respective
assets, and (b) to PESI’s Knowledge, PESI and the PESI Subsidiaries and their respective assets are
not subject to any Order, except as would not, individually or in the aggregate, have a Material
Adverse Effect.

4.12 Disclosure of Material Information. To PESI’s Knowledge, neither this Agreement
(including the Schedules and Exhibits) nor any document, certificate, or instrument furnished in
connection herewith contains, with respect to PESI, any untrue statement of a material fact or
omits to state a material fact necessary to make the statements therein not misleading, except as
would not, individually or in the aggregate, have a Material Adverse Effect. There is no fact
known to PESI which has or would reasonably be expected in the future to result in a Material
Adverse Effect and which has not been set forth in this Agreement or in any other document
delivered in connection herewith.

4.13 Information Statement. Neither the information supplied, or to be supplied, by
or on behalf of PESI for inclusion or incorporation by reference into the Information Statement or
any other documents to be filed by Parent with the SEC in connection with the Acquisition and the
other transactions contemplated herein, contains or will, on the date of its filing or at the date
it is mailed to the Parent Stockholders, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary to make the statements therein,
in light of the circumstances under which they were made, not misleading. If, at any time prior to
the Closing, any event with respect to PESI shall occur which is required under applicable SEC
rules to be described in the Information Statement, PESI shall promptly disclose such event to
Parent.

 

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ARTICLE V.

COVENANTS

5.1 Interim Operations of the Company. Parent and the Company, jointly and severally,
covenant and agree as to the Company and the Company Subsidiaries that during the period from the
date of this Agreement until the Closing or the date, if any, on which this Agreement is earlier
terminated pursuant to Section 7.1, except as (w) set forth in Section 5.1 of the Parent Disclosure
Letter, (x) expressly permitted by this Agreement, including Section 5.2 of this Agreement, (y)
required by applicable Law, or (z) consented to in writing by PESI after the date of this Agreement
and prior to the Closing, which consent shall not be unreasonably withheld or conditioned:

(a) the business of the Company and its Subsidiaries shall be conducted only in the ordinary
course of business consistent with past practice, and Parent and the Company shall use Commercially
Reasonable Efforts to (i) preserve intact the Company’s business organization and goodwill and the
business organization and goodwill of the Company Subsidiaries and (ii) to keep available the
services of their current officers and key employees and preserve and maintain existing relations
with material customers, suppliers, officers, employees, creditors and other Persons having
business dealings with them;

(b) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to (i) enter into any new line of business or (ii) incur or commit to any capital
expenditures, or any obligations or liabilities in connection with any capital expenditures, other
than in the ordinary course of business consistent with past practice

(c) the Company shall not, nor shall Parent or the Company permit any the Company Subsidiaries
to, amend any of their respective certificates of incorporation or bylaws or similar organizational
documents;

(d) the Company shall not declare, set aside or pay any dividend or other distribution,
whether payable in cash, stock or any other property or right, with respect to its capital stock;

(e) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries, to split, combine or reclassify any capital stock or issue or authorize the issuance
of any other securities in lieu of, or in substitution for, shares of its capital stock;

(f) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries, to redeem, repurchase or otherwise acquire directly or indirectly any of its capital
stock;

(g) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, issue, sell, dispose of or encumber, or authorize the issuance, sale, disposition
or encumbrance of, any shares of its capital stock or grant, enter into or accept any options,
warrants, convertible securities or other rights to acquire any shares of such capital stock or any
other ownership interest in the Company or any Company Subsidiary;

(h) other than in the ordinary course of business, the Company shall not, nor shall Parent or
the Company permit any of the Company Subsidiaries to: (i) grant any increase in the compensation
or benefits payable to any officer of the Company or any of the Company Subsidiaries, (ii) except
as required to comply with applicable Law or any agreement in existence on the date of this
Agreement or as expressly provided in this Agreement, adopt, enter into, amend or otherwise
increase, or accelerate the payment or vesting of the amounts, benefits or rights payable or
accrued or to become payable or accrued under any Company Employee Benefit Plan, or (iii) enter
into or amend any employment agreement or, except in accordance with existing contracts or
agreements, grant any severance or termination pay to any officer, director or employee of the
Company or any of the Company Subsidiaries;

 

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(i) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, revalue any of its material assets or change its methods of accounting in effect
at June 27, 2010, except changes in accordance with and required by GAAP, applicable Law or
regulatory guidelines as concurred with by the Company’s independent auditors;

(j) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to (i) acquire or invest in any Person or other business organization, division or
business of such Person (whether by merger or consolidation or by purchase of an equity interest in
such Person or by any other manner) or (ii) other than in the ordinary course of business
consistent with past practice, acquire any material assets;

(k) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, sell, lease, exchange, transfer or otherwise dispose of, or agree to sell, lease,
exchange, transfer or otherwise dispose of, any material assets of the Company or the Company
Subsidiaries, except for inventory and equipment in the ordinary course of business consistent with
past practice;

(l) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, mortgage, pledge, hypothecate, sell and leaseback, grant any security interest in,
or otherwise subject to any other Lien, other than Permitted Liens, any material assets of the
Company or Company Subsidiaries;

(m) except for Taxes, to which Section 5.1(o) shall apply, the Company shall not, nor shall
Parent or the Company permit any of the Company Subsidiaries to, (i) except as set forth in clause
(ii) below, pay, discharge or satisfy any material Claims (including claims of stockholders),
liabilities or obligations (absolute, accrued, asserted or unasserted, contingent or otherwise)
where such payment, discharge or satisfaction would require any material payment except for the
payment, discharge or satisfaction of liabilities or obligations in accordance with the terms of
the Company Material Contracts as in effect on the date of this Agreement or entered into after the
date of this Agreement in the ordinary course of business consistent with past practice and not in
violation of this Agreement, in each case to which the Company or any of the Company Subsidiaries
is a party; provided, however, that nothing in this Section 5.1(m) shall prohibit the Company or
any of the Company Subsidiaries from paying, discharging or satisfying accounts payable existing
on or arising after, in each case in the ordinary course of business consistent with past practice,
the date of this Agreement, or (ii) compromise, settle or grant any waiver or release relating to
any Litigation, other than settlements or compromises of Litigation fully covered by insurance or
where the amount paid or to be paid does not exceed $75,000 in the aggregate for all Claims;

(n) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, engage in any transaction with (except pursuant to agreements in effect at the
time of this Agreement insofar as such agreements are disclosed in Section 2.19 of the Parent
Disclosure Letter), or enter into any agreement, arrangement, or understanding, directly or
indirectly, with any of the Company’s Affiliates; provided that, for the avoidance of doubt, for
purposes of this Agreement, the term “Affiliates” shall not include any employees of the
Company or any of its Subsidiaries other than the directors and executive officers thereof and
employees who share the same household with such directors and executive officers;

 

37

 

(o) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, enter into any closing agreement with respect to material Taxes, make any change
to any material Tax method of accounting, fail to prepare all Returns using Tax principles
consistent with those used for preceding tax periods, unless a change is required by applicable
Law, make, revoke or change any material Tax election, authorize any indemnities for Taxes, extend
any period for assessment of any Tax, file any request for a ruling or determination, amend any
material Return (including by way of a claim for refund) or settle or compromise any material Tax
liability or any material Tax refund;

(p) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, adopt or enter into a plan of complete or partial liquidation, dissolution,
merger, consolidation, restructuring, recapitalization or other reorganization of the Company or
any of its Subsidiaries (other than the Acquisition) or any agreement relating to an Acquisition
Proposal, except as provided under Section 5.2;

(q) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, (i) incur or assume any indebtedness for borrowed money, (ii) modify any material
indebtedness or other liability to increase the Company’s (or any of its Subsidiaries’) obligations
with respect thereto, (iii) assume, guarantee, endorse or otherwise become liable or responsible
(whether directly, contingently or otherwise) for the obligations of any other Person (other than a
Company Subsidiary), except in the ordinary course of business and consistent with past practice
and in no event exceeding $75,000 in the aggregate at any time outstanding, (iv) make any loans,
advances or capital contributions to, or investments in, any other Person (other than to a Company
Subsidiary, or by such Company Subsidiary to the Company, or customary loans or advances to
employees consistent with past practice or short-term investments of cash in the ordinary course of
business in accordance with the Company’s cash management procedures), or (v) enter into any
material commitment or transaction, except in the ordinary course of business and consistent with
past practice and in no event exceeding $75,000 in the aggregate, except as permitted under Section
5.1(b); provided, however, that the restrictions in this Section 5.1(m) shall not prohibit the
incurrence of any long-term debt or short-term indebtedness or other liability or obligation
between the Company and any Company Subsidiaries;

(r) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, enter into any agreement, understanding or commitment that restrains, limits or
impedes the ability of the Company or any Company Subsidiary, or would limit the ability of the
Company or any Company Subsidiary after the Closing, to compete in or conduct any line of business
or to solicit customers or employees;

(s) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, enter into any material agreement, understanding or commitment containing any
restriction on the ability of the Company or any of Company Subsidiaries to assign its rights,
interests or obligations thereunder, unless such restriction excludes or is not applicable to any
assignment to PESI or any of its Subsidiaries in connection with or following the consummation of
the transactions contemplated by this Agreement;

 

38

 

(t) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, enter into any material joint venture, partnership or other similar arrangement or
materially amend or modify in an adverse manner the terms of (or waive any material rights under)
any existing material joint venture, partnership or other similar arrangement (other than any such
action between the Company’s Subsidiaries);

(u) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, terminate any Company Material Contract to which it is a party or waive, release,
relinquish or assign any of its rights or Claims under any Company Material Contract in a manner
that is materially adverse to the Company or, except in the ordinary course
of business consistent with past practice, modify or amend in any material respect any Company
Material Contract;

(v) the Company shall not, nor shall Parent or the Company permit any of its Subsidiaries to,
take any action that would give rise to a claim under the WARN Act or any similar state Law because
of a “plant closing” or “mass layoff” (each as defined in the WARN Act) without in good faith
attempting to comply with the WARN Act or such state Law;

(w) the Company shall not enter into, amend or otherwise change the terms of any agreements
with brokers, finders or investment bankers (including the Parent Financial Advisor) that would
result in the Company or the Company Subsidiaries being liable in any manner for any fees,
commissions or otherwise to such brokers, finders or investment bankers;

(x) the Company shall not, nor shall Parent or the Company permit any of the Company
Subsidiaries to, enter into an agreement, contract, commitment or arrangement to do any of the
actions described in clauses (b) through (w) above; or take any action that would prevent Parent or
the Company from performing or cause Parent or the Company not to perform its covenants under this
Agreement; and

(y) prior to the Closing the Company shall obtain, and Parent and the Company shall cause each
Company Subsidiary to obtain, and shall deliver to PESI at the Closing, resignations of each of the
directors of the Company and each Company Subsidiary and Michael T. Brigante as an officer of the
Company and the Company Subsidiaries, with such resignations to become effective as of the Closing.
Notwithstanding the foregoing, with respect to SEC Radcon Alliance, LLC, only the directors
appointed by the Company will resign.

 

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5.2 Acquisition Proposals. 

(a) Parent agrees that, except as expressly contemplated by this Agreement, neither it nor the
Company shall, and Parent shall cause its and the Company’s officers, directors, investment
bankers, attorneys, accountants, financial advisors, agents and other representatives
(collectively, “Representatives”) not to, (i) directly or indirectly, initiate, solicit or
encourage or take any action to facilitate (including by way of furnishing non-public information)
any inquiry regarding or the making or submission of any proposal that constitutes, or could
reasonably be expected to lead to, an Acquisition Proposal, (ii) participate or engage in
discussions or negotiations with, or disclose to any Person (other than a party hereto or its
Representatives) any information relating to the Company or any of the Company’s Subsidiaries, or
afford access to the properties, books or records of the Company or any of the Company’s
Subsidiaries to, or otherwise cooperate in any way with, any Person that has made an Acquisition
Proposal or that the Company, any of the Company’s Subsidiaries or any of their respective
Representatives knows or has reason to believe is contemplating making an Acquisition Proposal, or
(iii) accept an Acquisition Proposal or enter into any agreement, arrangement or understanding,
including any letter of intent or agreement in principle (other than an Acceptable Confidentiality
Agreement under circumstances contemplated in Section 5.2(b)), (x) providing for, constituting or
relating to an Acquisition Proposal or (y) that would require, or could have the effect of causing,
the Company to abandon, terminate or fail to consummate the Acquisition or any other transaction
contemplated by this Agreement. Other than with respect to PESI, Parent
shall not (A) waive, modify, terminate, or fail to enforce any “standstill” obligation of any
Person, and (B) render the restrictions, if any, under the Nevada Corporate Code relating to
business combinations inapplicable to any Person. Any violation of the foregoing restrictions of
this Section 5.2(a) by any of Parent, the Company, or any of their Subsidiaries or by any
Representative of Parent, the Company or any of their Subsidiaries, whether or not such
Representative is so authorized and whether or not such Representative is purporting to act on
behalf of Parent, the Company or any of their Subsidiaries or otherwise, shall be deemed to be a
breach of this Agreement by Parent.

(b) Notwithstanding anything to the contrary in Section 5.2(a) or elsewhere in this Agreement,
Parent and the Parent Board may take any actions described in clause (ii) of Section 5.2(a) with
respect to a third party at any time prior to obtaining the Parent Required Votes if, prior to such
vote, (i) the Company receives a bona fide written Acquisition Proposal from such third party (and
such Acquisition Proposal was not initiated, solicited, encouraged or facilitated by Parent, the
Company or any of their Subsidiaries or any of their respective Representatives in violation of
this Section 5.2), (ii) the Parent Board determines in good faith by resolution duly adopted (after
consultation with financial advisors and its outside legal counsel, Mintz Levin Cohn Ferris Glovsky
and Popeo, P.C., that such proposal constitutes or is reasonably likely to result in a Superior
Proposal from the third party that made the applicable Acquisition Proposal, (iii) the Parent Board
determines in good faith by resolution duly adopted after consultation with financial advisors and
its outside legal counsel (Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.) that the third party
making such Acquisition Proposal has the financial capacity to consummate such Acquisition
Proposal, and (iv) the Parent Board determines after the receipt of advice from such outside legal
counsel (Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.) that the failure to take such action
would result in a breach of its fiduciary duties under applicable Law; provided that (x) Parent or
the Company shall not deliver any information to such third party without entering into a
confidentiality agreement on terms no less favorable to Parent and the Company than the
Confidentiality Agreement between the Company and PESI and which shall in no event permit Parent
and the Company not to comply with the terms of this Agreement (an “Acceptable Confidentiality
Agreement”) and (y) Parent shall immediately provide or make available to PESI any material
non-public information concerning the Company or any of its Subsidiaries that is provided to any
Person making such Acquisition Proposal or such Person’s Representatives that was not previously
provided or made available to PESI. Nothing contained in this Section 5.2(b) shall prohibit Parent
from disclosing any information as required by applicable Law.

 

40

 

(c) Parent agrees that in addition to the obligations of Parent set forth in Sections 5.2(a)
and (b), as promptly as practicable after receipt thereof (but in no event more than 24 hours after
Parent’s receipt thereof), Parent shall advise PESI orally and in writing in the event that Parent
or any of its Subsidiaries or Representatives receives, directly or indirectly: (i) any Acquisition
Proposal or indication by any Person that it is considering making an Acquisition Proposal or
proposals or offers with respect to an Acquisition Proposal, (ii) any request for non-public
information relating to the Company and/or any of the Company Subsidiaries other than a request for
information in the ordinary course of business or unrelated to an Acquisition Proposal, or (iii)
any inquiry or request for discussions or negotiations regarding any Acquisition Proposal or
potential Acquisition Proposal. Parent shall promptly (and in any event within 48 hours) notify
PESI orally and in writing of the identity of any such
Person and provide to PESI a copy of any such Acquisition Proposal, inquiry or request (or,
where no such copy is available, a written description of such Acquisition Proposal, inquiry or
request), including any material modification to any Acquisition Proposal. Parent shall keep PESI
reasonably informed (orally and in writing) on a prompt basis (and in any event within 48 hours) of
the status and details of any such Acquisition Proposal, indication, inquiry or request (including
the material terms and conditions thereof and of any modification thereto). Without limiting the
foregoing, Parent shall promptly (and in any event within 24 hours) notify PESI orally and in
writing if it determines to engage in any actions described in clause (ii) of Section 5.2(a) and
shall keep PESI reasonably informed (orally and in writing) on a prompt basis (and in any event
within 24 hours) of the status and details of any such actions. In addition, Parent shall not, and
shall cause its Subsidiaries not to, enter into any confidentiality agreement with any Person that
would restrict Parent’s ability to provide information to PESI as required by Section 5.2(b) or
this Section 5.2(c).

(d) Neither (i) Parent Board nor any committee thereof shall directly or indirectly (x)
withdraw (or amend, qualify or modify in a manner adverse to PESI), or propose to withdraw (or
amend, qualify or modify in a manner adverse to PESI), the approval, recommendation or declaration
of advisability by the Parent Board or any such committee thereof of this Agreement, the
Acquisition or the other transactions contemplated by this Agreement or (y) recommend, adopt or
approve, or propose publicly to recommend, adopt or approve, any Acquisition Proposal (any action
described in this clause (i) being referred to as a “Parent Adverse Recommendation
Change”), nor (ii) shall Parent or any of its Subsidiaries execute or enter into, any
agreement, including any letter of intent, memorandum of understanding, agreement in principle,
merger agreement, acquisition agreement, option agreement, joint venture agreement, partnership
agreement or other similar agreement, arrangement or understanding, (x) constituting or related to,
or that is intended to or could reasonably be expected to lead to, any Acquisition Proposal (other
than an Acceptable Confidentiality Agreement permitted pursuant to Section 5.2(b)) (each an
“Acquisition Agreement”) or (y) requiring it to abandon, terminate or fail to consummate
the Acquisition or any other transaction contemplated by this Agreement. Notwithstanding anything
to the contrary in this Agreement, at any time prior to obtaining the Parent Required Vote, and
subject to Parent’s compliance at all times with the provisions of this Section 5.2 and Section
5.6, Parent Board may, in response to a Superior Proposal, make a Parent Adverse Recommendation
Change if Parent Board (A) determines in good faith, after consultation with outside legal counsel,
that the failure to make a Parent Adverse Recommendation Change would be reasonably likely to
result in a breach of its fiduciary duties to the 

 

41

 

stockholders of Parent, and (B) provides prior
written notice to PESI (a “Parent Notice of Change”) advising PESI that the Parent Board is
contemplating making such Parent Adverse Recommendation Change and specifying the material facts
and information constituting the basis for such contemplated determination, including the terms and
conditions of such Superior Proposal; provided, however, that (1) Parent Board may not make such
Parent Adverse Recommendation Change until the third Business Day after receipt by PESI of the
Parent Notice of Change (it being understood and agreed that any change to the financial terms or
any other material term of such Superior Proposal shall require a new Parent Adverse
Recommendation, a new Parent Notice of Change and a new three Business Day period) and (2) during
such third Business Day period, at the request of PESI, Parent shall negotiate in good faith with
respect to any changes or modifications to this Agreement which
would allow Parent Board not to make such Parent Adverse Recommendation Change consistent with
its fiduciary duties.

(e) Nothing contained in Section 5.2(d) shall prohibit Parent or the Parent Board from taking
and disclosing to Parent’s stockholders a position with respect to an Acquisition Proposal pursuant
to Rules 14d-9 and 14e-2(a) promulgated under the Exchange Act or from making any similar
disclosure, in either case to the extent required by applicable Law, provided, however, that (i)
compliance with such rules shall in no way limit or modify the effect that any such action pursuant
to such rules has under this Agreement and (ii) in no event shall the Parent Board or any committee
thereof take any action prohibited by Section 5.2(a) except as specifically permitted by Section
5.2(b).

(f) For purposes of this Agreement, “Acquisition Proposal” shall mean any proposal,
whether or not in writing (other than by PESI or any of its Subsidiaries), for the (i) direct or
indirect acquisition or purchase of a business or assets that generates or constitutes 20% or more
of the net revenues, net income or the assets (based on the book or fair market value thereof) of
the Company and the Company Subsidiaries, taken as a whole (including capital stock of or ownership
interest in the Company and/or any Company Subsidiary), (ii) direct or indirect acquisition or
purchase of 20% or more of any class of equity securities or capital stock of the Company or any of
the Company Subsidiaries, or (iii) merger, consolidation, restructuring, transfer of assets or
other business combination, sale of shares of capital stock, tender offer, exchange offer,
recapitalization, stock repurchase program or other similar transaction that if consummated would
result in any Person or Persons beneficially owning, directly or indirectly, equity securities or
capital stock in the Company or equity securities or capital stock of any of the Company’s
Subsidiaries, or (iv) other transaction the consummation of which would reasonably be expected to
impede, interfere with, prevent or materially delay the Acquisition, in each case other than the
transactions contemplated by this Agreement. The term “Superior Proposal” shall mean any
bona fide written Acquisition Proposal that was not initiated, solicited, encouraged or facilitated
by Parent or any of its Subsidiaries or any of its Representatives in violation of this Agreement,
made by a third party to acquire, directly or indirectly, pursuant to a tender offer, exchange
offer, merger, share exchange, asset purchase or other business combination, (x) all or
substantially all of the assets of the Company and the Company Subsidiaries, taken as a whole, or
(y) 50% or more of the equity securities of Parent or the Company, in each case on terms which the
Parent Board determines (after consultation with its financial advisors and outside legal counsel,
Mintz Levin Cohn Ferris Glovsky and Popeo, P.C., in good faith by resolution duly adopted (A) would
result in a transaction that, if

 

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consummated, is more favorable to the stockholders of Parent (in
their capacity as stockholders) than the
Acquisition, taking into account all the terms and
conditions of such Acquisition Proposal, the Person making such proposal, and the terms and
conditions of this Agreement (including, without limitation, any break-up fees, expense
reimbursement provisions, conditions to consummation and any changes to the terms of this Agreement
offered by PESI in response to such Superior Proposal or otherwise pursuant to this Section 5.2)
and (B) is reasonably likely to be completed on the terms proposed, taking into account all
financial, regulatory, legal and other aspects of such Acquisition Proposal; provided, further,
that a proposal shall be deemed to be a Superior Proposal: (x) if such proposal sets forth
consideration that is greater than the Purchase Price (plus the payment of Out of Pocket Expenses
and Parent Termination Fee) and such proposal is subject to a financing condition (unless the
Parent Board, after consultation with its
financial advisors, concludes that the proposed acquiror has adequate financial resources to
consummate the transaction); or (y) such proposal sets forth consideration that is equal to the
Purchase Price (plus the payment of Out of Pocket Expenses and Parent Termination Fee) and there is
no financing condition.

(g) Immediately after the execution and delivery of this Agreement, Parent shall, and shall
cause its Subsidiaries and Representatives to, cease and terminate any existing activities,
discussions or negotiations with any Person conducted heretofore with respect to any possible
Acquisition Proposal. Parent agrees that it shall promptly inform its Representatives involved in
the transactions contemplated by this Agreement of the obligations undertaken in this Section 5.2.

5.3 Access to Information and Properties. 

(a) Upon reasonable notice and subject to the Confidentiality Agreement and applicable Laws
relating to the exchange of information, Parent shall, and shall cause each of its Subsidiaries to,
afford to the authorized Representatives of PESI reasonable access during normal business hours
during the period prior to the Closing, to all of the Company’s and the Company Subsidiaries
properties, offices, contracts, books, commitments, records, and data and, during such period, it
shall, and shall make available to the Representatives of PESI all information concerning its
business, properties and personnel of the Company and the Company Subsidiaries as PESI may
reasonably request. Without limiting the foregoing, Parent shall cooperate and provide the
authorized Representatives of PESI with all relevant information reasonably required by PESI or any
of such Representatives, in order to successfully transition to PESI, the business of the Company
and the Company Subsidiaries. In connection with the overall transitioning, Parent and its
Subsidiaries will make reasonably available the Company’s and the Company Subsidiaries’ personnel,
including senior management and personnel responsible for compliance, internal audit, finance,
investigations, logistics, sales and marketing and other areas PESI reasonably considers to be
relevant to overall transitioning of the business. Parent understands and agrees that the matters
discussed in this Section 5.3(a) may extend to and include on-site interviews and visits to the
Company’s and the Company Subsidiaries’ locations and that the determination of the site of any
such interviews and visits shall be at the sole decision of PESI acting reasonably. PESI shall
coordinate all such on-site interviews and visits through SunTrust Robinson Humphrey or Leichtweis.
The cooperation provisions of this Section 5.3(a) extend fully to all of the Company’s and the
Company Subsidiaries’ business locations. Parent shall have the right, in its sole discretion, to
have a Company Representative present for all interviews and visits. Notwithstanding the foregoing
provisions of this Section 5.3(a), neither Parent, the Company nor any of the Company Subsidiaries
shall be required to provide access to or to disclose information where such access or disclosure
would violate or prejudice the rights of its customers, jeopardize any attorney-client privilege or
contravene any Law or binding agreement entered into prior to the date of this Agreement; provided,
however, that Parent shall use Commercially Reasonable efforts to provide such access or
information in a manner that avoids or removes the impediments described in this sentence.

 

43

 

(b) Upon reasonable notice and subject to the Confidentiality Agreement and applicable Laws
relating to the exchange of information, for a period not to exceed twelve (12) months from the
Closing Date, PESI shall, and shall cause the Company and the Company
Subsidiaries to, afford to the authorized Representatives of Parent reasonable access during
normal business hours, to all of the Company’s and the Company Subsidiaries books, records and
data, and it shall, and shall make available to the Representatives of Parent, all information
concerning its business, properties and personnel of the Company and the Company Subsidiaries as
Parent or its Representatives may reasonably request, in connection with Parent’s preparation of
its audited financial statements and annual report on Form 10-K for its fiscal year ended June 30,
2011 and income tax returns for fiscal year ended June 30, 2011 (collectively, “Annual Report
Purposes”). In connection therewith, PESI will make reasonably available the Company’s
personnel during normal business hours in a manner not to interfere with such personnel performing
his or her duties that Parent reasonably considers to be relevant to Annual Report Purposes.
Parent shall coordinate all such access with PESI’s Chief Financial Officer, and PESI shall have
the right to have a Representative present during all such inspection of such Company’s and the
Company’s Subsidiaries books, records and data. Notwithstanding the foregoing provisions of this
Section 5.3(b), neither PESI, the Company nor any of the Company Subsidiaries shall be required to
provide access to or to disclose information where such access or disclosure would violate or
prejudice the rights of its customers, jeopardize any attorney-client privilege or contravene any
Law or binding agreement entered into prior to the date of this Agreement; provided, however, that
PESI shall use Commercially Reasonable efforts to provide such access or information in a manner
that avoids or removes the impediments described in this sentence.

(c) Subject to compliance with applicable Law, from the date hereof until the Closing, each
party shall confer, to the extent reasonably needed, with one or more Representatives of the other
parties to report operational matters of materiality and the general status of ongoing operations.

 

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5.4 Further Action; Commercially Reasonable Efforts.

(a) Upon the terms and subject to the conditions herein provided, and subject to Section 5.2,
each of the parties hereto agrees to use its Commercially Reasonable Efforts to take, or cause to
be taken, all action and to do, or cause to be done, all things necessary, proper or advisable
under applicable Laws or otherwise to consummate and make effective the transactions contemplated
by this Agreement, including (i) to satisfy the conditions precedent to the obligations of any of
the parties hereto, (ii) preparing and filing as promptly as practicable with any Governmental
Entity or other third party all documentation to effect all necessary filings, notices, petitions,
statements, registrations, submissions of information, applications and other documents and (iii)
obtaining and maintaining all authorizations, consents, approvals, and filings required to be
obtained from any Governmental Entity or other third party that are necessary, proper or advisable
to consummate the transactions contemplated by this Agreement. Each of the parties will furnish to
the other parties such necessary information and reasonable assistance as such other parties may
reasonably request in connection with the foregoing and, subject to applicable Laws and any
applicable privilege relating to the exchange of information, will provide the other parties with
copies of all filings made by such party with any Governmental Entity (except for filings available
publicly on the SEC’s EDGAR system) or any other information supplied by such party to or received
from a Governmental Entity in connection with this Agreement and the transactions contemplated
hereby.

(b) Each of PESI and Parent shall use their respective Commercially Reasonable Efforts and
shall cooperate with the other parties to resolve such objections, if any, as may be asserted with
respect to the transactions contemplated hereby under any applicable Law.

(c) Each of the parties shall use Commercially Reasonable Efforts to prevent the entry of, and
to cause to be discharged or vacated, any Order of a Governmental Entity precluding, restraining,
enjoining or prohibiting the consummation of the Acquisition; provided, however, that no party
hereto shall be required to dispose of any assets or limit its freedom of action with respect to
any of its businesses, or to consent or commit to consent to such disposition or limit on its
freedom of action, which, in the reasonable good faith judgment of the parties, could be reasonably
likely to (i) give rise to a Material Adverse Effect to either party or (ii) materially impair the
benefits or advantages that either expects to receive from the Acquisition and the transactions
contemplated thereby.

(d) Each of PESI, Parent and the Company shall give the other reasonable opportunity to
participate in the defense of (i) any inquiry by a Governmental Entity and (ii) any Litigation
against PESI, Parent or the Company, as applicable, or their respective directors relating to the
transactions contemplated by this Agreement.

(e) Parent will provide PESI advance notice and the opportunity to participate in any
discussions relating to any investigation by any U.S. government agency such as the Department of
Justice, the Department of Energy or other government bodies with enforcement authority
(collectively, the “USG Authorities”) relating to the SPRU Project or any other material
matter relating to the Company or any of the Company Subsidiaries; and with respect to any
discussions by Parent or the Company with the USG Authorities where PESI has agreed not to
participate, Parent or the Company will in all such cases provide PESI with a review of all
discussions held with the USG Authorities regarding such issues. Prior to the Closing, PESI and
Parent shall jointly consider in good faith whether and, if so, how to disclose or attempt to
resolve any issues with the USG Authorities as contemplated by this Section 5.4(e).

 

45

 

5.5 Information Statement.

(a) The Parent shall, in accordance with the requirements of Section 14(c) of the Exchange Act
and Regulation 14C promulgated under the Exchange Act, file a preliminary and definitive
information statement with the SEC and transmit to all of its holders of record of its capital
stock the definitive information statement in accordance with the requirements of Regulation 14C.
Parent shall use its Commercially Reasonable Efforts to furnish the information and documents
contained in the information statement as required by the SEC to be included in the information
statement to be filed with the SEC and sent to Parent stockholders of record in connection with the
Parent Required Votes obtained by written consents, as described in this Section 5.5 (such
information statement, as amended and supplemented, the “Information Statement”).

(b) The Parent shall, at the same time that it transmits the Information Statement to its
stockholders, transmit such Information Statement to all of the Management Investors.

(c) PESI shall cooperate with Parent in the preparation of such Information Statement. PESI
shall use its Commercially Reasonable Efforts to furnish to Parent the information and documents
relating to PESI required by the SEC to be included in the Information Statement.

(d) Neither the information supplied, or to be supplied, by or on behalf of Parent, the
Company and/or any of the Company Subsidiaries for inclusion or incorporation by reference into any
document to be filed by PESI with the SEC in connection with the Acquisition and the other
transactions contemplated herein, contains or will, on the date of its filing or at the date it is
mailed to the stockholders of PESI, contain any untrue statement of material fact or omit to state
any material fact required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they were made, not misleading. If, at any time prior to the
Closing, any event with respect to Parent and/or the Company shall occur which is required under
applicable SEC rules to be described in the Information Statement, Parent shall promptly disclose
such event to PESI.

(e) Neither the information supplied, or to be supplied, by or on behalf of PESI for inclusion
or incorporation by reference into the Information Statement or any other documents to be filed by
Parent with the SEC in connection with the Acquisition and the other transactions contemplated
herein, contains or will, on the date of its filing or at the date it is mailed to the stockholders
of Parent (the “Parent Stockholders”), contain any untrue statement of a material fact or
omit to state any material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not misleading. If, at any time
prior to the Closing, any event with respect to PESI shall occur which is required under applicable
SEC rules to be described in the Information Statement, PESI shall promptly disclose such event to
Parent.

(f) If at any time prior to the Closing, any event or circumstance relating to Parent, PESI,
the Company or any of their respective Affiliates, or its or their respective officers or
directors, should be discovered by Parent or PESI that should be set forth in a supplement to the
Information Statement so that such document, including documents and financial statements
incorporated by reference therein, would not include any untrue statement of a material fact or
omit to state a material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not misleading, Parent or PESI
shall promptly inform the other party in writing. All documents that Parent or PESI is responsible
for filing with the SEC in connection with the transactions contemplated herein, respectively, will
comply as to form in all material respects with applicable requirements of the Securities Act and
the Exchange Act. Parent shall promptly notify PESI of the receipt of any comments from the staff
of the SEC, including any request by the staff of the SEC for amendments or supplements to the
Information Statement or for additional information. Parent shall also supply PESI with copies of
all correspondence between it or any of its Representatives, on the one hand, and the staff of the
SEC, on the other hand, with respect to the Information Statement or the Acquisition. No filing of,
or amendment or supplement to the Information Statement will be made by Parent, without providing
PESI and its respective counsel the reasonable opportunity to review and comment thereon and giving
due consideration to such comments.

 

46

 

5.6 Notification of Certain Matters. Parent shall give prompt notice to PESI of any
fact, event or circumstance as to which Parent obtains Knowledge that would be reasonably likely to
result in a failure of a condition set forth in Section 6.3(a) or 6.3(b). PESI shall give prompt
notice to Parent of any fact, event or circumstance as to which PESI obtains Knowledge that would
be reasonably likely to result in a failure of a condition set forth in Section 6.2(a) or 6.2(b).

5.7 Publicity. Neither Parent nor PESI, nor any of their respective Affiliates, shall
issue or cause the publication of any press release or other announcement or hold any press
conferences, analyst calls or other meetings with respect to the Acquisition, this Agreement or the
other transactions contemplated by this Agreement without the prior consultation of such other
party (including giving such other party a reasonable opportunity to review and comment on such
publication or the subject matter of such conferences, calls or meetings), except as may be
required by Law or by any listing agreement with, or regulation of, any securities exchange or
regulatory authority if all Commercially Reasonable Efforts have been made to consult with the
other party. In addition, prior to Closing, each party shall, to the extent reasonably practicable,
consult with such other party regarding the form and content of any public disclosure of any
material developments or matters involving such other party, including, without limitation,
earnings releases, reasonably in advance of such publication or release.

5.8 Stock Exchange Listing. If required under the rules and regulations of the
NASDAQ, PESI shall use its Commercially Reasonable Efforts to cause PESI Common Stock to be issued
in connection with the Acquisition to be listed on the NASDAQ, subject to official notice of
issuance as of the Closing.

5.9 Employee Benefits. 

(a) PESI and Parent agree that if the Acquisition becomes effective, all employees of the
Company and the Company Subsidiaries immediately prior to the Closing shall be deemed to be
employed by the Company or the Company Subsidiaries upon the Closing (“Continuing
Employees”); it being understood, however, that none of PESI or any of their Subsidiaries shall
have any obligation to continue employing the Continuing Employees for any length of time
thereafter.

 

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(b) Prior to the Closing, Parent or the Company shall take or shall cause the Company
Subsidiary that sponsors the Safety and Ecology Corporation 401(k) Profit Sharing Plan
maintained for employees of the Company and certain of its Subsidiaries (the “Company 401(k)
Plan”) to take such action immediately prior to the Acquisition, as is necessary, assuming and
subject to the Acquisition becoming effective, to (i) adopt amendments to the Company 401(k) Plan
required to be adopted in accordance with the Code to reflect qualification requirements that apply
as of the date of termination of the Company 401(k) Plan, (iii) take all necessary action to
terminate the Company 401(k) Plan , and (iv) ensure that each Company employee is fully vested in
his or her account balance under the Company 401(k) Plan.
Following the Closing, to the extent provided under the terms of the Company 401(k) Plan at
the time of termination, PESI shall permit participants in the Company 401(k) Plan who are employed
by PESI or its Subsidiaries to (x) make in-service withdrawals from the Company 401(k) Plan and (y)
continue to receive and repay any loans from the Company 401(k) Plan. Following the Closing, PESI
shall permit each participant in the Company 401(k) Plan who terminates employment with the Company
or its Subsidiaries after the Closing Date the right to receive a distribution of such
participant’s interest under the Company 401(k) Plan, in accordance with the terms of the Company
401(k) Plan. As soon as reasonably practicable following IRS approval of the termination of the
Company 401(k) Plan, PESI shall, with respect to Continuing Employees who remain actively employed
with PESI at that time (A) provide an election to roll over their interest under the Company 401(k)
Plan, including plan loans only if the entire balance of the participant’s account in the Company
401(k) Plan is rolled over, to a tax-qualified defined contribution plan maintained by PESI or an
affiliate of PESI (a “PESI DC Plan”), (B) cause the trustee of the Company 401(k) Plan to
roll over the interest which the participant elects to roll over to PESI DC Plan (including plan
loans only if the entire balance of the participant’s account in the Company 401(k) Plan is rolled
over), and (C) cause PESI DC Plan to accept any such rollovers (including plan loans only if the
entire balance of the participant’s account in the Company 401(k) Plan is rolled over). The
Continuing Employees shall be eligible to participate in PESI’s or a Subsidiary’s 401(k) plan
immediately following the Closing.

5.10 Tax Matters. 

(a) Parent shall pay and indemnify and hold harmless PESI, the Company and the Company
Subsidiaries from and against: (i) all income Taxes (or the nonpayment thereof) owing by the
Company with respect to business performed by the Company and the Company Subsidiaries for any
period ending on or before the Closing Date (a “Pre-Closing Tax Period”) and any
pre-Closing Straddle Period; (ii) any and all Taxes of Parent or any Affiliate of Parent or any
other business entity or other Person imposed on the Company, the Company Subsidiaries or on PESI,
as a transferee or successor, by contract or pursuant to any Law, which Taxes relate to their
conduct of business or any other event or transaction occurring on or before the Closing Date or as
a result of the closing of the transactions contemplated by this Agreement; and (iii) all Claims
arising out of or incident to the imposition, assessment or assertion of any Tax described in
clauses (i) and (ii) above. Notwithstanding anything in this Agreement to the contrary, all
matters relating to Taxes will be governed by this Section 5.10 and no provision of Section 5.10
will limit, modify or offset the rights or obligations of the parties hereunder.

 

48

 

(b) For purposes of this Agreement, the portion of any income Tax, with respect to the income,
property or operations of the Company and the Company Subsidiaries that is attributable to any Tax
period that begins on or before the Closing Date and ends after the Closing Date (a “Straddle
Period”) will be apportioned between the period of the Straddle Period that extends before the
Closing Date through the Closing Date and the period of the Straddle Period that extends from the
day after the Closing Date to the end of the Straddle Period in accordance with this Section 5.10.
The portion of such Tax attributable to the pre-Closing Straddle Period will be deemed equal to
the amount that would be payable if the Straddle Period ended on and included the Closing Date,
except for periodic Taxes that are not based on or related to income, such Taxes shall be
apportioned based on the number of days in the Tax
period through the Closing Date compared to the number of days in the Tax period following the
Closing Date. The portion of Tax attributable to a post-closing Straddle Period will be calculated
in a corresponding manner.

(c) Any indemnity payment to be made pursuant to this Section 5.10 must be paid by wire
transfer of immediately available funds no later than ten (10) days after PESI makes written demand
upon Parent therefor.

(d) The indemnification provisions in this Section 5.10 are in addition to the indemnity
provision of Article VIII and will survive the Closing until thirty (30) days after the expiration
of the applicable statute of limitations.

(e) Parent shall prepare, or caused to be prepared, and timely file, all original Tax Returns
of the Company and Parent with respect to any Pre-Closing Tax Period that have not yet been filed,
on a basis consistent with past practice, except to the extent required by applicable Law, and
shall timely pay, or cause to be timely paid, all Taxes shown as due and owing on such Tax Returns.
Parent shall allow PESI at least fifteen (15) days in which to review any portion relating to the
Company in such Pre-Closing Tax Period Tax Returns, prior to their filing and shall provide to PESI
such information that is reasonably requested by PESI to confirm Parent’s adherence to past
practice. If PESI, within fifteen (15) days after delivery of such Tax Return, notifies Parent in
writing that it objects to any items relating to the Company in such Tax Return, the disputed items
shall be resolved pursuant to Section 1.5(b). If PESI does not respond within fifteen (15) days,
PESI shall not be entitled to object to any item in such Tax Return, and Parent shall file such Tax
Return. The cost of preparing such Tax Returns shall be borne by Parent.

(f) If Parent on the one hand, and PESI, on the other, disagree as to the treatment of any
item on any Tax Return described in this Section 5.10 hereof, Parent and PESI shall promptly
consult each other in an effort to resolve such dispute in good faith. If any such point of
disagreement cannot be resolved in ten (10) days of the date of consultation, the Independent
Accounting Firm shall resolve any remaining disagreements. The determination of the Independent
Accounting Firm shall be final, conclusive and binding on the parties. The costs, fees and
expenses of the Independent Accounting Firm shall be borne equally by PESI, on the one hand, and
Parent, on the other. Nothing in this Agreement shall prevent the timely filing of a Tax Return by
the preparing party. However, the preparing party shall file an amended Tax Return to reflect
resolution of the items in dispute by the parties or the Independent Accountant Firm, as the case
may be.

 

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(g) All transfer, documentary, sales, use, stamp, registration, value added and other such
Taxes and fees (including any penalties and interest) imposed in connection with this Agreement
will be shared equally by Parent and PESI.

(h) Cooperation; Audits; Tax Claims.

(i) In connection with the preparation of Tax Returns, audit examinations, and
any administrative or judicial proceedings relating to the Tax liabilities imposed
on the Company, Parent, on the one hand, and PESI, on the
other hand, shall cooperate fully with each other, including, without
limitation, the furnishing or making available during normal business hours of
records, personnel (as reasonably required), books of account, powers of attorney or
other materials necessary or helpful for the preparation of such Tax Returns, the
conduct of audit examinations or the defense of claims by any Governmental Entity as
to the imposition of Taxes.

(ii) Notification. If a claim shall be made by any Taxing authority,
which, if successful, might result in an indemnity payment to the indemnified
parties pursuant to this Section 5.10, the indemnified parties shall notify any
Indemnifying parties reasonably promptly of such claim (a “Tax Claim”);
provided, however, that the failure to give such notice shall not
affect the Indemnifying parties’ obligations hereunder, except to the extent the
Indemnifying parties have actually been prejudiced as a result of such failure.

(iii) Control of Proceedings. The Indemnifying Party shall control all
proceedings taken in connection with any Tax Claim for which such Indemnifying Party
is liable under this Section 5.10 and may make all decisions in connection with such
Tax Claim; provided, however, that the Indemnified Parties and their
counsel or tax accountant shall have the right, solely at the Indemnified Parties’
own expense, to participate in the prosecution or defense of such Tax Claim.

(i) Tax Sharing Agreements. All Tax sharing agreements or similar agreements with
respect to or involving the Company and the Company Subsidiaries shall be terminated as of the
Closing Date and, after the Closing Date, the Company and the Company Subsidiaries shall not be
bound thereby nor have any liability thereunder.

5.11 No Takeover Statute Applies. Parent shall take all actions necessary to be taken
such that no restrictive provision of any “moratorium,” “control share acquisition,” “fair price,”
“interested shareholder,” “affiliate transaction,” “business combination,” or other similar
anti-takeover statutes or Laws, including the State of Delaware and Section 203 of the Delaware
General Corporation Law (“DGCL”), or any applicable anti-takeover provision in the
certificate of incorporation or bylaws of Parent and the Company, are or at the Closing will be,
applicable to Parent, Company Common Stock, this Agreement or the transactions contemplated hereby.

 

50

 

5.12 Parent and Company Expenses. All legal, accounting, professional, and other
out-of-pocket expenses incurred by Parent, the Company and/or the Company Subsidiaries in
connection with or relating to the Acquisition, this Agreement and the transactions contemplated by
this Agreement shall be paid in full by Parent on or prior to the Closing, and neither the Company
nor any of the Company Subsidiaries shall be liable for or have any obligations in connection with
such legal, accounting, professional and other out-of-pocket expenses after the Closing Date.

5.13 Non-Solicitation of Employees. For the period beginning on the Closing Date and ending on the date that is two (2) years
after the Closing Date (the “Parent Non-Solicitation Period”), Parent shall not, and shall
not permit any of its Affiliates (collectively, the “Parent Restricted Parties,” and
individually, a “Parent Restricted Party”), for its own benefit or for the benefit of any
Person other than PESI, the Company and/or the Company Subsidiaries to: (i) solicit, or assist any
Person other than PESI to solicit, any employees of the Company or the Company Subsidiaries to
leave his employment with PESI, the Company or the Company Subsidiaries; or (ii) hire or cause to
be hired, any employee of PESI, the Company or Company Subsidiaries, except nothing contained
herein shall prohibit any of the Parent Restricted Parties from hiring an employee that is no
longer employed by the Company, the Company Subsidiaries, PESI or their Affiliates and such
employee solicits such Parent Restricted Party for employment after the termination of any such
individual’s employment with the Company, the Company’s Subsidiaries or PESI.

5.14 Non-Solicitation of Customers. During the Parent Non-Solicitation Period, Parent
shall not, and shall not permit any of the other Parent Restricted Parties, to solicit or encourage
any of the customers of the Company or the Company Subsidiaries to divert, terminate, curtail or
otherwise limit its business relationship with the Company or the Company Subsidiaries or otherwise
direct or divert or attempt to direct or divert any customer to any other entity or interfere with
any business relationship between the Company and/or the Company Subsidiaries and such customer.

5.15 Non-Compete. Parent acknowledges that the Company and the Company Subsidiaries
operate on an international basis and have clients throughout the world. The parties acknowledge
and agree that this covenant is reasonable and is necessary to protect the interests of PESI, the
Company and the Company Subsidiaries. During the Parent Non-Solicitation Period, Parent shall not,
and shall not permit any of the other Parent Restricted Parties, directly or indirectly, by or for
itself or any of the Parent Restricted Parties, or for any of their own account, or as an agent of
another, or through others as an agent, or by or through any joint venture, partnership,
corporation, limited liability company or other business entity in which Parent or any of the
Parent Restricted Parties has a direct or indirect interest, own, manage, operate, control, or be
engaged in any business, or be connected with or employed as an officer, employee, partner,
director, consultant, agent or otherwise in, or be involved with, any business that (i) competes,
directly or indirectly, with the Business of the Company and/or the Company Subsidiaries, or (ii)
conducts any other related business or businesses similar to the Business of the Company and/or the
Company Subsidiaries, or enter into or carry on a business, one of the activities of which is
similar to the Business of the Company and/or the Company Subsidiaries or the activities of the
Business of the Company and/or the Company Subsidiaries. Notwithstanding the above, the Parent
Restricted Parties may hold stock in a competing entity if said ownership is (i) not a direct
purchase, but merely part of a mutual-like fund investment made by its investment advisor, provided
that, the Parent Restricted Parties’ ownership of such stock does not represent more than 5% of the
issued and outstanding shares of voting stock, or securities convertible into such voting stock, of
such entity; or (ii) is limited to 5%, on a fully-diluted basis, of the total shares of common
stock of a corporation having securities listed on a national or foreign stock exchange or quoted
on an automated quotation system.

 

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5.16 Confidential Information. PESI and the Parent shall not, and shall not permit
any of the Parent Restricted Parties or PESI Restricted Parties (as defined below), as applicable,
to, during the Parent Non-Solicitation Period, directly or indirectly, by or for themselves, or as
an agent, employee, partner, joint venturer, shareholder, member, officer, director or manager of
another, or through others as an agent, or by and through any joint venture, partnership,
corporation, limited liability company, or other business entity in which he has a direct or
indirect interest:

(a) use or disclose for its benefit or the benefit of any other Person any customer lists, or
identify any customers of such other parties or the Company or any of the Company Subsidiaries; or

(b) use or disclose any proprietary, secret or confidential information, knowledge or data
relating to the business of the other parties hereto or the Company or any of the Company
Subsidiaries.

For purposes of this Section 5.16 and Section 5.17, “PESI Restricted Parties” shall
mean PESI and its Affiliates, except PESI Restricted Parties shall not include the Company, any of
the Company Subsidiaries or any Person that served as a director, officer or employee of the
Company or any of the Company Subsidiaries on or prior to the Closing Date.

5.17 Remedies and Injunctive Relief.

(a) Parent acknowledges that the provisions of Sections 5.13, 5.14, 5.15 and 5.16 of this
Agreement are reasonable and necessary for the protection of PESI, the Company and the Company
Subsidiaries and that they will be irrevocably damaged if such covenants are not specifically
enforced. The parties hereto do hereby declare and agree that it would be difficult to measure, in
money, the damages which will accrue to PESI, the Company, the Company Subsidiaries or any of them,
by reason of the failure of Parent or any of the Parent Restricted Parties to perform the
obligations under this Agreement. Therefore, if PESI or the Company shall institute any action or
proceeding to enforce the provisions of Sections 5.13, 5.14, 5.15 or 5.16, Parent hereby waives the
claim or defense therein that PESI and/or the Company has an adequate remedy at law and such other
party shall not urge in any such action or proceeding the claim or defense that such remedy at law
exists. Accordingly, Parent agrees that, in addition to any other rights or relief to which PESI
or the Company may be entitled in the form of actual damages, each party may be entitled to seek
and obtain injunctive relief from a court of competent jurisdiction (without posting a bond
therefor) for the purposes of restraining Parent or any Parent Restricted Party, as applicable,
from any actual or threatened breach of the provisions and covenants contained in Sections 5.13,
5.14, 5.15 or 5.16 hereof. Such right to injunctive relief shall be cumulative and in addition to
any other remedies that PESI and/or the Company may have at law and equity. If it becomes
necessary for PESI and/or the Company to bring legal action against Parent or any other Parent
Restricted Party as a result of Parent’s breach of any of the covenants contained in Sections 5.13,
5.14, 5.15 or 5.16 hereof, the non-prevailing party agrees to pay all of the costs and expenses of
the prevailing party in connection
therewith (including, but not limited to, reasonable attorneys’ fees). Nothing shall be
construed as prohibiting PESI and/or the Company from pursuing any other remedies available to it
against Parent or any Parent Restricted Party for a breach of such provisions, including, without
limitation, the recovery of damages.

 

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(b) PESI acknowledges that the provisions of Section 5.16 of this Agreement are reasonable and
necessary for the protection of Parent and that it will be irrevocably damaged if such covenant is
not specifically enforced. The parties hereto do hereby declare and agree that it would be
difficult to measure, in money, the damages which will accrue to Parent, by reason of the failure
of PESI or any of the PESI Restricted Parties to perform the obligations under this Agreement.
Therefore, if Parent shall institute any action or proceeding to enforce the provisions of Section
5.16, PESI hereby waive the claim or defense therein that Parent has an adequate remedy at law and
such other party shall not urge in any such action or proceeding the claim or defense that such
remedy at law exists. Accordingly, PESI agrees that, in addition to any other rights or relief to
which Parent may be entitled in the form of actual damages, Parent may be entitled to seek and
obtain injunctive relief from a court of competent jurisdiction (without posting a bond therefor)
for the purposes of restraining PESI or any PESI Restricted Party, as applicable, from any actual
or threatened breach of the provisions and covenants contained in Section 5.16 hereof. Such right
to injunctive relief shall be cumulative and in addition to any other remedies that Parent may have
at law and equity. If it becomes necessary for Parent to bring legal action against PESI or any
other PESI Restricted Party as a result of PESI’s breach of any of the covenants contained in
Section 5.16 hereof, the non-prevailing party agrees to pay all of the costs and expenses of the
prevailing party in connection therewith (including, but not limited to, reasonable attorneys’
fees). Nothing shall be construed as prohibiting Parent from pursuing any other remedies available
to it against PESI, the Company and the Company Subsidiaries or any PESI Restricted Party for a
breach of such provision, including, without limitation, the recovery of damages.

5.18 Acknowledgment. 

(a) Parent agrees that the restrictions and covenants set forth in Sections 5.13, 5.14, 5.15
and 5.16 are manifestly reasonable on their face. The parties expressly agree that the
restrictions and covenants set forth in Sections 5.13, 5.14, 5.15 and 5.16 have been designed to be
reasonable and no greater than is required for the protection of PESI, the Company and the Company
Subsidiaries. If the final judgment of a court of competent jurisdiction declares any of the terms
of Sections 5.13, 5.14, 5.15 and 5.16 invalid or unenforceable, the parties agree that such court
making such determination shall have the power to reduce the scope or duration of such provision,
to delete specific words or phrases, or to replace any invalid or unenforceable term with a term or
provision that is valid and enforceable and that comes closest to expressing the intent of the
invalid or unenforceable term or provision, and Sections 5.13, 5.14, 5.15 and 5.16 of this
Agreement shall be enforceable as so modified after the expiration of the time which the judgment
may be appealed.

 

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(b) PESI agrees that the restrictions and covenants set forth in Section 5.16 are manifestly
reasonable on their face. The parties expressly agree that the restrictions and covenants set
forth in Section 5.16 have been designed to be reasonable and no greater than is required for the
protection of Parent. If the final judgment of a court of competent jurisdiction
declares any of the terms of Section 5.16 invalid or unenforceable, the parties agree that
such court making such determination shall have the power to reduce the scope or duration of such
provision, to delete specific words or phrases, or to replace any invalid or unenforceable term
with a term or provision that is valid and enforceable and that comes closest to expressing the
intent of the invalid or unenforceable term or provision, and Section 5.16 of this Agreement shall
be enforceable as so modified after the expiration of the time which the judgment may be appealed.

5.19 Disclosure Updates. At any time, and from time to time on or prior to the
Closing Date, Parent and the Company may supplement or amend the Parent Disclosure Letter to
reflect any fact necessary to make Parent’s and the Company’s representations contained herein true
and correct (any such supplement or amendment, a “Disclosure Update”); provided, however,
that if PESI determines, in its reasonable discretion, that such Disclosure Update could result in
or be considered a Material Adverse Effect on the Company and the Company Subsidiaries, taken as a
whole, and if such Disclosure Update is incapable of being cured by Parent or the Company prior to
the Termination Date or is not cured by Parent or the Company within 30 days following receipt of
written notice of such determination from PESI, PESI may, at its option, terminate this Agreement.

5.20 Liabilities of Company and the Company Subsidiaries. As of the Closing, GAAP
Liabilities of the Company and the Company Subsidiaries, on a consolidated basis, shall not exceed
$15,000,000.

5.21 Management Investors. Contemporaneously with the Closing, Parent shall cause
certain of the individuals listed in Schedule 5.21 (each a “Management Investor”
and collectively, “Management Investors”) to purchase restricted shares of common stock of
PESI, par value $0.001 per share (“PESI Common Stock”), at a per share price determined by
dividing $1,000,000 by the average of the closing prices of PESI Common Stock as reported by the
NASDAQ for the 30 consecutive trading day period ending on the trading day immediately prior to the
earlier of (a) the Closing Date or (b) the public announcement of the Acquisition by PESI. The
Parent shall cause each Management Investor purchasing PESI Common Stock hereunder to execute and
deliver to PESI immediately prior to Closing the Subscription Agreement, substantially in the form
attached hereto as Exhibit E, which completed Subscription Agreement shall be on terms
reasonably satisfactory to PESI (“Subscription Agreement”). Such purchase by a Management
Investor shall be pursuant to this section and the Subscription Agreement. All such purchases by
the Management Investors shall meet the requirements of Rule 506 of Regulation D promulgated under
the Securities Act. Parent covenants that at the Closing it shall cause certain of the Management
Investors to purchase an aggregate number of restricted shares of PESI Common Stock valued at not
less than $900,000 nor more than $1,000,000, as calculated on the basis of the per share price set
forth in this Section 5.21, and PESI shall utilize and retain the full amount of the Retained
Portion of the Purchase Price in payment of such PESI Common Stock acquired by the Management
Investors pursuant to this Section 5.21.

 

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The Parent shall cause each of the Management Investors that is not an accredited investor (as
defined in Rule 501 of Regulation D) and that is purchasing PESI Common Stock in accordance with
this Section 5.21, to appoint a Purchaser Representative (as such term is defined in Rule 501 of
Regulation D) to evaluate the merits and risks of their investment in the PESI Common Stock;
provided that such Purchaser Representative (i) is not an Affiliate, director, officer or other
employee of PESI or the beneficial owner of 10% or more of any class of equity securities of PESI
and (ii) has such knowledge and experience in finance and business matters and is capable of
evaluating the merits and risks of the prospective investment in PESI Common Stock.

5.22 Parent Required Vote.

(a) As provided in Section 2.2 hereof, Parent shall obtain the Parent Required Votes necessary
to approve this Agreement and the transactions contemplated herein through written consents,
without a meeting of, without prior notice to, and without a vote of, Parent’s stockholders, and
pursuant to the requirements of Section 228 of the DGCL. All written consents obtained by Parent
must be obtained pursuant to, and in accordance with, Section 228 of the DGCL.

5.23 Parent Required Votes by Parent Stockholders; Shareholder Agreements.

(a) The Parent Required Votes are the only votes of the holders of capital stock of Parent or
any class or series of the capital stock of Parent required to adopt this Agreement.

(b) There are no shareholder agreements, voting trusts, proxies or similar agreements,
arrangements or commitments to which Parent, the Company or any of its Subsidiaries is a party with
respect to any shares or other equity interests of the Company or any of its Subsidiaries or any
other agreement relating to disposition or voting of any equity securities of the Company or any of
its Subsidiaries.

ARTICLE VI.

CONDITIONS

6.1 Conditions to Each Party’s Obligation to Close the Acquisition. The respective
obligation of each party to complete the Acquisition shall be subject to the satisfaction on or
prior to the Closing Date of each of the following conditions (any or all of which may be waived by
the parties in writing, in whole or in part, to the extent permitted by applicable Law):

(a) This Agreement shall have been adopted by the Parent Required Votes in accordance with the
Laws of the State of Delaware and Parent’s certificate of incorporation;

(b) No Law shall have been enacted or promulgated, and no action shall have been taken, and
there shall not be any Litigation pending or threatened, by any Governmental Entity of competent
jurisdiction or any other Person that temporarily, preliminarily or
permanently restrains, precludes, enjoins or otherwise prohibits the consummation of the
Acquisition or makes consummation of the Acquisition illegal;

(c) Parent and PESI shall have agreed upon the collectability of each of those receivables
listed in the Estimated Closing Balance Sheet, and those unbilled receivables not so listed, in
which the amount of such receivable, individually or in the aggregate, by customer is $500,000 or
more. Such agreement will include the receivables in question being part of the “allowance for
doubtful accounts” on the Estimated Closing Balance Sheet.

 

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(d) Each of the Management Investors have completed, executed and delivered to PESI the
Subscription Agreement and the Management Investor Questionnaire, in form and substance reasonably
satisfactory to PESI, and have delivered to PESI the completed Purchaser Representative
Questionnaire, executed by the Purchaser Representative, in form and substance reasonably
satisfactory to PESI.

6.2 Conditions to Parent’s Obligation to Close the Acquisition. The obligation of
Parent to close the Acquisition is further subject to the satisfaction on or prior to the Closing
Date of each of the following conditions (any or all of which may be waived by Parent in writing,
in whole or in part, to the extent permitted by applicable Law):

(a) The representations and warranties of PESI in Article IV of this Agreement shall be true
and correct in all respects (except for any de minimis inaccuracies therein) at and as of the
Closing Date, as if made at and as of such date (except to the extent expressly made as of an
earlier date, in which case as of such date), except where the failure of such representations and
warranties to be so true and correct (without giving effect to any limitation as to “materiality”
or “Material Adverse Effect” set forth therein) individually or in the aggregate has not had, and
could not reasonably be expected to have or result in, a Material Adverse Effect. Parent shall
have received a certificate signed on behalf of PESI by a senior executive officer of PESI to the
foregoing effect;

(b) PESI shall have performed or complied with in all material respects each of its covenants
and obligations under this Agreement required to be performed or complied with by it on or prior to
the Closing Date pursuant to the terms of this Agreement, and Parent shall have received a
certificate signed on behalf of PESI by a senior executive officer of PESI to the foregoing effect;

(c) Since the date of this Agreement, there shall not have been any Material Adverse Effect
with respect to PESI that has occurred and is continuing. Parent shall have received a certificate
signed on behalf of PESI by a senior executive officer of PESI to the foregoing effect;

(d) Parent shall have received from PESI (i) cash in an amount equal to the Initial Cash
Consideration, by wire transfer of immediately available funds of the United States to the bank
account designated by Parent, and (ii) the Note, duly executed by PESI, to the order of Parent.

(e) The Escrow Agent shall have received from PESI $2,000,000, by wire transfer of immediately
available funds of the United States to the bank account designated by the Escrow Agent
representing the Escrow Amount for deposit in the Escrow Account;

(f) PESI shall have delivered to Parent the Escrow Agreement, duly executed by PESI and the
Escrow Agent;

 

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(g) PESI shall have delivered a Secretary’s Certificate, in form and substance reasonably
satisfactory to Parent, dated as of the Closing Date, certifying as to the truth, accuracy and
completeness of (i) the resolutions of the board of directors of PESI, authorizing and approving,
among other things, the execution, delivery and performance of this Agreement, the Leichtweis
Employment Agreement and the transactions contemplated thereby and stating that the resolutions
thereby certified have not been amended, modified, revoked or rescinded, and (ii) PESI’s
certificate of incorporation and bylaws (as in effect from the time the resolutions described above
were adopted until the Closing) (the “PESI Secretary’s Certificate”).

(h) PESI shall have delivered to Parent certificates of good standing of PESI from the
jurisdiction of its incorporation certified by the appropriate authority of the Governmental Entity
issuing such certificate, dated within five (5) days of the Closing Date;

(i) Parent shall have received the opinion of Conner & Winters LLP, counsel to PESI, in form
and substance reasonably satisfactory to Parent and its counsel, dated as of the Closing Date;

(j) PESI shall have delivered an employment agreement, between PESI and Leichtweis, in
substantially the form attached hereto as Exhibit F, to be effective as of and commence on
the Closing Date, duly executed by PESI (the “Leichtweis Employment Agreement”);

(k) PESI shall have delivered to Parent copies of all third party consents set forth on
Schedule 6.2(k);

(l) Parent, PESI, the Company and/or the Company Subsidiaries shall have obtained all material
Permits, approvals and consents (including, without limitation, all required transfers or issuances
of Environmental Permits) required to consummate the transactions contemplated by this Agreement;

(m) The Company shall have delivered to Parent a duly executed release of all Claims against
Parent or any Subsidiary of Parent by the Company and all the Company Subsidiaries relating to
intercompany debts between the Parent, the Company and the Company Subsidiaries arising prior to
the Closing; provided, however, such release shall not release the Parent from any and all
Liabilities or Claims for Losses arising under or in connection with this Agreement (including, but
not limited to, Article VIII hereof), with such release being in form and substance reasonably
satisfactory to Parent; and

(n) Intentionally Omitted.

(o) PESI shall have delivered such other separate instruments that may be reasonably required
by Parent or the Company in connection with the consummation of the transactions contemplated
hereby.

 

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6.3 Conditions to PESI’s Obligations to Close the Acquisition. The obligations of
PESI to close the Acquisition are further subject to the satisfaction on or prior to the Closing
Date of each of the following conditions (any or all of which may be waived by PESI in writing, in
whole or in part, to the extent permitted by applicable Law):

(a) The representations and warranties of Parent and the Company set forth in Article II of
this Agreement shall be true and correct in all respects (except for any de minimis inaccuracies
therein) at and as of the Closing Date, as if made at and as of such date (except to the extent
expressly made as of an earlier date, in which case as of such date), except where the failure of
such representations and warranties to be so true and correct (without giving effect to any
limitation as to “materiality” or “Material Adverse Effect” set forth therein) individually or in
the aggregate has not had a Material Adverse Effect. PESI shall have received a certificate signed
on behalf of Parent and the Company by a senior executive officer of each of Parent and the Company
to the foregoing effect;

(b) Parent and the Company shall have performed or complied with in all material respects each
of its covenants and obligations under this Agreement required to be performed or complied with by
it at or prior to the Closing Date pursuant to the terms of this Agreement, and PESI shall have
received a certificate signed on behalf of Parent and the Company by a senior executive officer of
Parent and of the Company to the foregoing effect;

(c) Parent and the Company shall have delivered a Secretary’s Certificate, in form and
substance reasonably satisfactory to PESI, dated as of the Closing Date, certifying as to the
truth, accuracy and completeness of (i) the resolutions of the Parent Board and the Company Board,
in each case authorizing and approving, among other things, the execution, delivery and performance
of this Agreement and the transactions contemplated thereby and stating that the resolutions
thereby certified have not been amended, modified, revoked or rescinded, (ii) the resolutions of
the Parent Stockholders authorizing and approving this Agreement and the transactions contemplated
thereby and stating that such resolutions have not been amended, modified, revoked or rescinded,
and (iii) each of Parent, the Company and the Company Subsidiaries certificates of incorporation
and bylaws (the “Parent and Company Secretary Certificates”).

(d) PESI shall have received the opinion of Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.,
counsel to Parent, in form and substance reasonably satisfactory to PESI and its counsel, dated the
Closing Date;

(e) Since the date of this Agreement, there shall not have been any Material Adverse Effect
with respect to the Company or the Company Subsidiaries that has occurred and is continuing. PESI
shall have received a certificate signed on behalf of Parent by a senior executive officer of
Parent to the foregoing effect;

(f) Parent shall have delivered to PESI duly executed stock powers and assignments executed by
Parent as to all of the outstanding Company Common Stock and the Company Series A Preferred,
endorsed and assigned by Parent to PESI, free and clear of any Liens, in form and substance
reasonably satisfactory to PESI;

(g) Parent shall have delivered to PESI all original stock certificates evidencing all of the
issued and outstanding shares of the Company Shares, free and clear of all Liens, with any required
stock transfer tax stamps affixed thereto;

 

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(h) Parent shall have delivered to PESI certificates of good standing of Parent, the Company
and each Company Subsidiary from its respective jurisdiction of incorporation, and such
jurisdictions where the Company and the Company Subsidiaries are qualified as a foreign
corporation, certified by the appropriate authorities of the Governmental Entities issuing such
certificates, each dated within five (5) days of the Closing Date;

(i) Parent shall have delivered to PESI organizational record books, minute books and
corporate seal of the Company and each Company Subsidiary and all other books and records relating
to the Company and each Company Subsidiary;

(j) Parent shall have delivered to PESI a certificate of non-foreign status of Parent meeting
the requirements of Treasury Regulation Section 1.1445-2(b)(2);

(k) Parent shall have delivered a duly executed release of all Claims against the Company and
all Company Subsidiaries by Parent and each Subsidiary of Parent, substantially in the form and
substance reasonably satisfactory to PESI and its counsel (the “Parent Release”);

(l) Parent, PESI, the Company and the Company Subsidiaries, as appropriate, shall have
obtained all material Permits (including, without limitation, all required transfers or issuances
of Environmental Permits) set forth on Schedule 6.3(l), which are required to consummate
the transactions contemplated by this Agreement or that allow the Company and the Company
Subsidiaries to continue to conduct their business and operations following the Closing in the same
manner as conducted immediately prior to the Closing Date;

(m) Parent shall have delivered to PESI the Escrow Agreement, duly executed by Parent and the
Escrow Agent;

(n) Parent shall have delivered to PESI written resignations of the directors of the Company
and each Company Subsidiary and Michael T. Brigante, as an officer of the Company and the Company
Subsidiaries, effective as of the Closing Date;

(o) Parent shall have delivered to PESI copies of all third party consents required to be
obtained pursuant to the terms of this Agreement;

(p) Parent shall have delivered releases of Liens from Yorkville Advisors, LLC, YA Global
Investments, L.P., Yorkville Bhn S.p.A. and their Affiliates (collectively, “Yorkville”)
and SunTrust Bank on the capital stock and all of the assets of the Company and the Company
Subsidiaries, in form and substance reasonably satisfactory to PESI;

(q) Parent shall have delivered to PESI evidence that GAAP Liabilities of the Company and the
Company Subsidiaries, on a consolidated basis, do not exceed $15,000,000 as of the Closing Date, in
form and substance reasonably satisfactory to PESI;

(r) None of the individuals identified in Section 6.3(r) of the Parent Disclosure Letter shall
have ceased to be employed by the Company or one of the Company Subsidiaries, as the case may be,
or shall have expressed any intention to terminate his or her employment with the Company or such
Company Subsidiary or have declined to accept employment with PESI or any of its Subsidiaries;

 

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(s) PESI and Leichtweis shall have entered into the Leichtweis Employment Agreement and PESI
shall have received a fully-executed complete copy of such employment agreement, duly executed by
Leichtweis;

(t) All employment agreements and indemnification agreements between the Company or a Company
Subsidiary and any officer, director, employee or stockholder of the Company or of a Company
Subsidiary in effect prior to the Closing shall have been terminated, without liability to PESI,
the Company or any Company Subsidiary, in form and substance reasonably satisfactory to PESI,
except for the indemnification agreement between the Company and Leichtweis relating to Leichtweis’
and his wife’s guaranty of certain performance bonds issued on behalf of the Company in connection
with those projects listed in Section 6.3(t) of the Parent Disclosure Letter and the employment
agreement dated September 1, 2010 between Carrie Daniels and the Company;

(u) PESI shall have entered into a definitive agreement with the PESI Lender or another lender
approving the Acquisition and such lender shall provide the financing to PESI to enable PESI to
fund the payment of the Cash Consideration and to consummate the Acquisition, with such agreement
providing such terms and conditions as satisfactory to PESI in its sole discretion;

(v) PESI shall have received from Coulter & Justus, P.C. audited consolidated financial
statements (“Audited Financial Statements”) of the Company and the Company Subsidiaries for
all years required to be included in a Form 8-K to be filed by PESI as a result of consummation of
this Agreement and as required by Regulation S-X (17 CFR Part 210), and with such Audited Financial
Statements to be prepared in accordance with Regulation S-X (17 CFR Part 210) and GAAP,
consistently applied throughout the periods, and with the Coulter & Justis, P.C. report and consent
in connection therewith to be unqualified;

(w) PESI shall have received from each Management Investor acquiring PESI Common Stock
pursuant to Section 5.21 hereof a Subscription Agreement duly executed by such Management Investor,
the terms of which shall be reasonably satisfactory to PESI, and such Management Investors shall
have purchased from PESI the PESI Common Stock pursuant to Section 5.21 hereof; and

(x) Parent, the Company and the Company Subsidiaries, as applicable, shall have delivered such
other separate instruments that may be reasonably required by PESI in connection with the
consummation of the transactions contemplated hereby;

 

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ARTICLE VII.

TERMINATION

7.1 Termination. Notwithstanding anything herein to the contrary, this Agreement may
be terminated and the Acquisition may be abandoned at any time prior to the Closing
(notwithstanding any approval of this Agreement by the Parent Stockholders:

(a) by the mutual consent of PESI and Parent in a written instrument;

(b) by either Parent or PESI upon written notice to the other, if:

(i) the Acquisition shall not have been consummated on or before the earlier of
(A) August 30, 2011, or (B) five Business Days after the expiration of the 20-day
waiting period after the mailing date of the Information Statement, or such later
date, if any, as PESI and Parent agree upon in writing (as such date may be
extended, the “Termination Date”); provided, however that the right to
terminate this Agreement pursuant to this Section 7.1(b)(i) shall not be available
to a party whose failure to fulfill any material obligation under this Agreement has
been the cause of, or resulted in, the failure of the Acquisition to have been
consummated on or before such date; provided further, however, that if on the
Termination Date the conditions to the consummation of the Acquisition set forth in
either or both of Sections 7.1(c) and 7.1(e) shall not be fulfilled but all other
conditions shall be fulfilled or shall be capable of being fulfilled, then the
Termination Date shall be extended by 30 days, and such date shall become the
Termination Date for the purposes of this Agreement;

(ii) any Governmental Entity shall have issued a Law or taken any other action,
in each case permanently restraining, enjoining or otherwise prohibiting
consummation of the Acquisition or making consummation of the Acquisition illegal
and such Law or other action shall have become final and nonappealable; provided,
however, that the right to terminate pursuant to this Section 7.1(b)(ii) shall not
be available to any party whose failure to fulfill any material obligation under
this Agreement has been the cause of or resulted in such action or who is then in
material breach of Section 5.4 with respect to such action; or

(iii) the Parent Stockholders fail to approve this Agreement because of the
failure to obtain the Parent Required Votes; provided, however, that Parent’s right
to terminate pursuant to this Section 7.1(b)(iii) shall not be available to Parent
if Parent’s failure to fulfill any material obligation under this Agreement has been
the cause of or resulted in such failure of the stockholders of Parent to adopt this
Agreement through written consents obtained pursuant to Section 228 of the DGCL or
Parent has not made the payments required to be made by Parent to PESI pursuant to
Section 9.1(b) hereof;

(c) by Parent, upon written notice to PESI, if PESI shall have breached or failed to perform
any of its representations, warranties, covenants or other agreements contained in this Agreement,
which breach or failure to perform (i) would give rise to the failure of a condition set forth in
Sections 6.2(a) or 6.2(b) and (ii) is incapable of being cured by PESI prior to the Termination
Date or is not cured by PESI within 30 days following receipt of written notice from Parent of such
breach or failure to perform; provided that Parent shall not have the right to terminate this
Agreement pursuant to this clause (c) if Parent is then in material breach or has materially failed
to perform any of its representations, warranties or covenants in this Agreement;

 

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(d) by Parent, upon written notice to PESI, if, prior to obtaining the Parent Required Vote,
Parent Board or a committee thereof has made a Parent Adverse Recommendation Change pursuant to
Section 5.2 and Parent Board or any committee thereof has authorized Parent to enter into an
Acquisition Agreement in respect of the related Superior Proposal; provided, however, that (i)
Parent shall have previously paid or shall concurrently pay to PESI the Parent Termination Fee and
reimbursement for Out-of-Pocket Expenses pursuant to Section 9.1(b) and (ii) Parent has not
breached its covenants or other agreements contained in Section 5.2;

(e) by PESI, upon written notice to Parent, if Parent or the Company shall have breached or
failed to perform any of its representations, warranties, covenants or other agreements contained
in this Agreement, which breach or failure to perform (i) would give rise to the failure of a
condition set forth in Sections 6.3(a) or 6.3(b), and (ii) is incapable of being cured by Parent
prior to the Termination Date or is not cured by Parent within 30 days following receipt of written
notice from PESI of such breach or failure to perform; provided that PESI shall have no right to
terminate this Agreement pursuant to this clause (e) if PESI is then in material breach or has
materially failed to perform any of its representations, warranties or covenants in this Agreement;
or

(f) by PESI, upon written notice to Parent, (i) if a Parent Adverse Recommendation Change
shall have occurred or Parent Board or any committee thereof shall have resolved to make a Parent
Adverse Recommendation Change, (ii) if Parent shall have recommended, adopted or approved, or
proposed publicly to recommend, adopt or approve any Acquisition Proposal or Acquisition Agreement
relating thereto, (iii) if Parent shall have failed to reaffirm the recommendation of Parent Board
that Parent stockholders vote in favor of the adoption of this Agreement within three Business Days
following receipt from PESI of a written request for such reaffirmation or (iv) within 10 Business
Days after a tender or exchange offer relating to securities of Parent has first been published or
announced, Parent shall not have sent or given to Parent stockholders pursuant to Rule 14e-2
promulgated under the Exchange Act a statement disclosing that the Parent Board recommends
rejection of such tender or exchange offer.

(g) by PESI, upon written notice to Parent, if PESI terminates this Agreement pursuant to
Section 5.19.

7.2 Effect of Termination. In the event of the termination of this Agreement as provided in Section 7.1, written
notice thereof shall be given by the party who is electing to terminate to the other party
specifying the provision of this Agreement pursuant to which such termination is made and, except
with respect to this Section 7.2 and Article IX, this Agreement shall forthwith become null and
void after the expiration of any applicable period following such notice. In the event of such
termination, there shall be no liability on the part of PESI or Parent, except as set forth in
Section 9.1 of this Agreement and except with respect to the requirement to comply with the
Confidentiality and Non-Disclosure Agreement, dated March 25, 2010, by and between PESI and the
Company (the “Confidentiality Agreement”); provided that nothing herein shall relieve any
party from any liability with respect to any willful breach of any representation, warranty,
covenant or other obligation under this Agreement.

 

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ARTICLE VIII.

INDEMNIFICATION

8.1 Indemnification of PESI. Subject to the limitations, terms and conditions of this
Article VIII, Parent shall indemnify, defend and hold harmless PESI and its officers, directors,
employees, shareholders, agents, representatives, subsidiaries, successors and permitted assigns
(the “PESI Indemnitees”) from and against any and all Losses suffered or to be suffered,
asserted or to be asserted against, imposed upon or to be imposed upon, or incurred or to be
incurred by any PESI Indemnitees arising out of or resulting from or in connection with:

(a) the breach of any representation or warranty of the Company or Parent contained in or made
pursuant to this Agreement, the Parent Disclosure Letter or any certificate delivered by Parent or
the Company to PESI pursuant to this Agreement with respect hereto or thereto in connection with
the Closing;

(b) the breach of any covenant or agreement of the Company or Parent contained in this
Agreement;

(c) any claims by any employee of the Company or any of the Company Subsidiaries in
connection with matters or issues arising prior to the Closing Date;

(d) any environmental claims brought by any Governmental Entity or any other Person under any
Environmental Law arising out of any action or omission of, release or threat of release by, the
Company or any of the Company Subsidiaries occurring prior to the Closing Date;

(e) any consolidated GAAP Liabilities of the Company and the Company Subsidiaries, that
existed prior to the Closing Date, but only to the extent such consolidated GAAP Liabilities are,
in the aggregate, in excess of $15,000,000 as of the Closing Date; or

(f) any claims by Leichtweis in his personal capacity in connection with the consideration he
receives or is to receive from Parent on or after the Closing.

For purposes of this Article VIII, the term “PESI Indemnitees” shall also include, without
limitation, the Company, the Company Subsidiaries and their officers, directors, employees,
shareholders, agents, representatives, successors and permitted assigns, and any Losses suffered
or to be suffered, asserted or to be asserted, against any of them shall be considered Losses
suffered by PESI.

8.2 Indemnification of Parent. Subject to the limitations, terms and conditions of
this Article VIII, PESI shall indemnify, defend and hold harmless Parent and its officers,
directors, employees, shareholders, agents, representatives, subsidiaries, successors and permitted
assigns (the “Parent Indemnitees”) from and against any and all Losses suffered or to be
suffered, asserted or to be asserted against, imposed upon or to be imposed upon, or incurred or to
be incurred by any Parent Indemnitees arising out of or resulting from or in connection with:

(a) the breach of any representation, warranty or covenant of PESI contained in or made
pursuant to this Agreement; or

(b) the breach of any covenant or agreement of PESI contained in this Agreement.

 

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8.3 Losses. As used in this Article VIII, the term “Losses” shall include all
claims, losses, liabilities, damages, judgments, awards, orders, penalties, settlements, costs and
expenses (including, without limitation, interest, penalties, court costs and reasonable legal fees
and expenses) including those arising from any demands, claims, suits, actions, costs of
investigation, causes of action, proceedings and assessments whether or not made by third parties
or whether or not ultimately determined to be valid. The amount of any Losses shall be computed
net of any insurance benefits received in connection with such Losses.

8.4 Indemnification Procedures. The party making a Claim for indemnification under
this Agreement shall be, for purposes of this Agreement, referred to as the “Indemnitee”
and the party against whom such Claim is asserted under this Agreement shall be, for the purposes
of this Agreement, referred to as the “Indemnifying Party.” The indemnification
obligations and liabilities under this Article VIII and pursuant to Article VIII with respect to
any action, proceeding, lawsuit, investigation, demand or other Claim brought against any
Indemnitee shall be subject to the following terms and conditions:

(a) Notice of Claim. The Indemnitee will give the Indemnifying Party prompt written
notice after receiving written notice of any Claim or discovering the liability, obligation or
facts giving rise to such Claim (a “Notice of Claim”) which Notice of Claim shall set forth
(a) a description of the nature of the Claim and (b) the total amount of the actual out-of-pocket
Loss or the anticipated potential Loss (including any costs or expenses which have been or may be
reasonably incurred in connection therewith).

(b) Defense. The Indemnifying Party shall have the right to participate in the
defense of a Claim at their expense. The Indemnifying Party shall have the right, at their option
(subject to the limitations set forth in Section 8.4(c) below), by written notice to the
Indemnitee, to assume the entire control of, subject to the right of the Indemnitee to participate
(at its expense and with counsel of its choice) in, the defense, compromise or settlement of the
Claim as to which such Notice of Claim has been given, and shall be entitled to appoint counsel
reasonably acceptable to the Indemnitee to be the lead counsel in connection with such defense. If
the Indemnifying Party elects to assume the defense of a Claim: (a) the Indemnifying Party shall
keep the Indemnitees reasonably informed of the status of such defense; provided, however,
that in the case of any settlement providing for remedies other than monetary damages for which
indemnification is provided, the Indemnitees shall have the right to approve the settlement, which
approval shall not be unreasonably withheld or conditioned; and (b) the Indemnitees shall cooperate
fully in all respects with the Indemnifying Party in any such defense, compromise or settlement
thereof, including, without limitation, the selection of counsel, and the Indemnitees shall make
available to the Indemnifying Party all pertinent information and documents under its control.

(c) Limitations of Right to Assume Defense. The Indemnifying Party shall not be
entitled to assume control of such defense if (a) the Claim relates to or arises in connection with
any criminal proceeding, action, indictment, allegation or investigation; (b) the Claim seeks an
injunction or equitable relief against any of the Indemnitees; (c) there is a reasonable
probability that a Claim may materially and adversely affect the Indemnitees other than as a result
of money damages or other money payments; or (d) if counsel for the Indemnitees concludes in good
faith that there is a conflict of interest between the Indemnitees, or any one of them, and the
Indemnifying Party, in connection with the matter that the Indemnifying Party desires to assume
control of the defense.

 

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(d) Other Limitations. Failure to give prompt Notice of Claim or to provide copies of
relevant available documents or to furnish relevant available data shall not limit the Indemnitee’s
right to recover from such Claim and shall not affect the duties or obligations of the Indemnifying
Party under this Article VIII, except to the extent such failure prejudices the defense of such
Claim. So long as the Indemnifying Party is defending any such action actively and in good faith,
the Indemnitees shall not settle such action without the consent of the Indemnifying Party, which
consent shall not be unreasonably withheld. The Indemnitees shall make available to the
Indemnifying Party all relevant records and other relevant materials required by them and in the
possession or under the control of the Indemnitees, for the use of the Indemnifying Party and its
representatives in defending any such action, and shall in other respects give reasonable
cooperation in such defense.

(e) Failure to Defend. If the Indemnifying Party, after receiving a Notice of Claim,
fails to defend such Claim reasonably and in good faith, the Indemnitee will (upon further written
notice) have the right to undertake the defense, compromise or settlement of such Claim as it may
determine in its reasonable discretion at the sole cost and expense of the Indemnifying Party
subject to the limitations contained in this Article VIII.

(f) Indemnitee’s Rights. Anything in this Section 8.4 to the contrary
notwithstanding, the Indemnifying Party shall not, without the written consent of the Indemnitees,
settle or compromise any action or consent to the entry of any judgment which does not include as
an unconditional term thereof the giving by the claimant or the plaintiff to the Indemnitees of a
full and unconditional release from all liability and obligation in respect of such action without
any payment by the Indemnitees.

8.5 Limitations on Indemnification.

(a) Survival; Time Limitation under Section 8.1. The representations, warranties,
covenants and agreements in this Agreement made by the Parent or the Company or in any writing
delivered by the Company and/or Parent in connection with this Agreement shall survive the Closing
until the expiration of (i) the second anniversary from the Closing Date for Claims relating to
breach of any of the representations or warranties of the Parent and/or the Company contained
herein, except as otherwise provided below; (ii) the third anniversary from the Closing Date for
Claims relating to a breach of any covenant or agreement contained herein except as otherwise
provided below; and (iii) claims relating to a Fundamental Warranty (as defined below) may be
asserted or brought at any time during the applicable statute of limitations period relating to the
applicable Fundamental Warranty. Any Claim made by a PESI Indemnitee hereunder prior to expiration
of its survival period shall be preserved despite the subsequent expiration of the survival period
and any Claim set forth in a Notice of Claim sent prior to the expiration of such survival period
shall survive until final resolution thereof. No Claim for indemnification under this Article VIII
shall be brought after the end of the expiration of the survival period, as set forth in this
Section 8.5(a), as applicable to such Claim. The term “Fundamental Warranty” means the
following Claims:

(i) the intentional or willful misrepresentation of representations or
warranties;

 

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(ii) the intentional or willful breach of any covenant or agreement;

(iii) liability for Taxes of the Company or any Company Subsidiary for all
periods prior to the Closing Date;

(iv) Parent’s breach of the representations that it owns all of the outstanding
capital stock of the Company or the Company and the Company Subsidiaries own all of
their respective assets; or

(v) CERCLA or other offsite environmental Liabilities or Claims for all periods
prior to the Closing Date or arising due to acts or actions occurring prior to the
Closing Date.

(b) Survival; Time Limitations Under Section 8.2. The representations, warranties,
covenants and agreements made by PESI in this Agreement or in any writing delivered by PESI in
connection with this Agreement shall survive the Closing until the expiration of (i) the second
anniversary from the Closing Date for Claims relating to breach of any of the representations and
warranties of PESI contained herein; and (ii) the third anniversary from the Closing Date for
Claims relating to breach of any covenant or agreement contained herein. Any Claim made by a
Parent Indemnitee hereunder prior to expiration of its survival period shall be preserved despite
the subsequent expiration of the survival period and any Claim set forth in a Notice of Claim sent
prior to the expiration of such survival period shall survive until the final resolution thereof.
No Claim for indemnification under Section 8.2 shall be brought after the end of the expiration of
the survival period, as set forth in this Section 8.5(b), as applicable to such Claim;

(c) Basket. The PESI Indemnitees shall not assert any indemnification claim under
this Article VIII, and Parent shall have no obligation to indemnify any PESI Indemnitee, until the
aggregate amount of all Claims for Losses by the PESI Indemnitees exceeds $245,000, in which event
Parent will be responsible for all Losses, including without limitation, the Basket Amount, subject
to the terms of this Article VIII;

(d) Aggregate Amount Limitation of the Parent. Parent’s aggregate liability for
Losses of the PESI Indemnitees under this Article VIII shall not exceed the following:

(i) Claims relating to breaches of representations and warranties, shall not
exceed, in the aggregate, the sum of $3,000,000, except as otherwise provided
herein;

(ii) Claims relating to breaches of covenants or agreements shall not exceed in
the aggregate the sum of $4,900,000, except as otherwise provided herein; and

(iii) Claims relating to any Fundamental Warranty shall be limited to the
Purchase Price.

 

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(e) Aggregate Amount Limitation of PESI. PESI’s aggregate liability for Losses of the
Parent Indemnitees under this Article VIII shall not exceed the following:

(i) Claims relating to breaches of PESI’s representations and warranties shall
not exceed, in the aggregate, the sum of $500,000; and

(ii) Claims relating to PESI’s breach of covenants or agreements shall not
exceed, in the aggregate, the unpaid principal balance of the Note as of the date of
such breach

8.6 Exclusive Remedy. Except as provided under Sections 1.4 and 1.5, which shall be
the sole provisions with respect to final determination of the Net Working Capital Amount, Section
5.17, Article VII and Sections 9.1, 9.3 and Section 9.13, after the Closing Date, the rights and
remedies of the parties expressly provided for in this Article VIII shall be the sole and exclusive
remedy of the parties and their respective officers, directors, employees, Affiliates, agents,
representatives, successors and assigns for any breach or inaccuracy of any representation,
warranty or breach or non-fulfillment of any covenant or agreement contained in this Agreement, and
the parties shall not be entitled to rescission of this Agreement or to any further indemnification
or other rights or claims of any nature whatsoever (including under statute, regulation, common
law, in equity or for negligence) in respect thereof, all of which the parties hereby waive to the
fullest extent permitted by Law.

8.7 Application of Escrow Amount. Neither the Escrow Amount nor the Escrow Agreement
shall in any manner limit Parent’s liability to PESI for Losses under this Agreement, and if the
amount of Parent’s Liability to PESI under this Agreement exceeds the Escrow Amount, Parent shall
pay such excess Losses to PESI in accordance with the terms of this Agreement and will not be
released from Liability to PESI for such excess Losses.

ARTICLE IX.

MISCELLANEOUS

9.1 Fees and Expenses.

(a) All costs and expenses incurred in connection with this Agreement and the transactions
contemplated hereby shall be paid by the party incurring such costs or expenses, except (i) as
otherwise provided in this Section 9.1, and (ii) Parent will bear and pay all such fees, costs and
expenses incurred by Parent, the Company and the Company Subsidiaries (including, without
limitation, expenses incurred by Parent in preparing, printing and mailing of the Information
Statement, and any and all amounts due to the Parent’s, Company’s and the Company Subsidiaries’
investment bankers and brokers) in connection with this Agreement and/or the transactions
contemplated herein.

(b) (i) If this Agreement is terminated by Parent pursuant to Section 7.1(d), or (ii) if this
Agreement is terminated by PESI pursuant to Section 7.1(f), or (iii) if this Agreement is
terminated by either Parent or PESI pursuant to Section 7.1(b)(iii), then Parent shall pay to PESI
an aggregate amount equal to the sum of (x) $625,000 (the “Parent Termination Fee”), and
(y) reimbursement for Out-of-Pocket Expenses of PESI as determined in accordance with Section
9.1(c).

 

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(c) “Out-of-Pocket Expenses” means, with respect to PESI all out-of-pocket expenses
and fees (including all fees and expenses payable to all legal, accounting, financial, public
relations and other professional advisors) of PESI arising out of, in connection with or related to
the Acquisition or the other transactions contemplated by this Agreement, up to a maximum of
$250,000 in the aggregate. On any date on which PESI shall request reimbursement for Out-of-Pocket
Expenses or such reimbursement shall become payable in accordance with the provisions of Sections
7.1 or 9.1, PESI shall provide to Parent a written statement of the respective amounts and nature
of such Out-of-Pocket Expenses.

(d) Intentionally Omitted.

(e) Any payment required pursuant to Section 9.1(b) shall be made at the time of such
termination of this Agreement by wire transfer of immediately available funds to the account
designated by PESI set forth in Section 9.1(e) of the PESI Disclosure Letter, as applicable. Each
party acknowledges that the agreements contained in this Section 9.1 are an integral part of the
transactions contemplated by this Agreement, and that, without these agreements, the other party
would not enter into this Agreement; accordingly, if Parent fails promptly to pay or cause to be
paid the amounts due from it pursuant to such sections, and, in order to obtain such payment, the
other party commences a suit that results in a judgment for the amounts set forth in such sections,
the non-prevailing party shall pay to the prevailing party its reasonable costs and expenses
(including reasonable attorneys’ fees and expenses) in connection with such suit and any appeal
relating thereto, together with interest on the amounts set forth in this Section 9.1 from the date
payment was due at 6% per annum.

(f) This Section 9.1 shall survive any termination of this Agreement.

(g) The parties agree that payment of the Parent Termination Fee is as liquidated damages (and
not as a penalty) for termination of this Agreement and that the actual damages to PESI in the
event of such termination are impractical to ascertain and the amount of the Parent Termination Fee
is a reasonable estimate thereof.

9.2 Amendment; Waiver. 

(a) This Agreement may not be amended except by an instrument in writing signed on behalf of
each of PESI and Parent.

(b) At any time prior to the Closing, Parent and the Company, on one hand, and PESI, on the
other hand, may (i) extend the time for the performance of any of the obligations or other acts of
the other party or parties, (ii) waive in whole or in part any inaccuracies in the representations
and warranties of the other party or parties contained herein or in any document, certificate or
writing delivered pursuant hereto by the other party or parties or (iii) waive in whole or in part
compliance with any of the agreements or conditions of the other party or parties hereto contained
herein. Any agreement on the part of any party to any such extension or waiver shall be valid only
if set forth in an instrument in writing signed on behalf of such party. Any such waiver shall
constitute a waiver only with respect to the specific matter described in such writing and shall in
no way impair the rights of the party granting such waiver in any other respect or at any other
time. Neither the waiver by any of the parties of a breach of or a default under any of the
provisions of this Agreement, nor the failure by any of the parties, on one or more occasions, to
enforce any of the provisions of this Agreement or to exercise any right or privilege hereunder,
shall be construed as a waiver of any other breach or default of a similar nature, or as a waiver
of any of such provisions, rights or privileges hereunder. The rights and remedies herein provided
are cumulative and none is exclusive of any other, or of any rights or remedies that any party may
otherwise have at law or in equity.

 

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9.3 Offsets. PESI may offset any amounts it owes to Parent under this Agreement or
the Note for any Claims it may have against Parent under Article VIII hereof, except as otherwise
provided in this Section 9.3. Unless the Escrow Agreement has terminated pursuant to its terms or
the Escrow Amount has been exhausted, PESI or any PESI Indemnitee shall, in the first instance,
satisfy that portion of any Claim by PESI or any PESI Indemnitee for indemnification under Article
VIII that does not exceed the remaining Escrow Amount (less any amounts reserved by the Escrow
Agent pursuant to the Escrow Agreement for Claims being disputed by the Parent) as of the date of
such Claim (“Remaining Escrow Amount”) out of the Remaining Escrow Amount before PESI may
offset such Claim, or that portion thereof that exceeds the Remaining Escrow Amount, against any
amounts PESI owes to Parent under this Agreement or the Note. In the event that the Escrow Amount
has been exhausted or the Escrow Agreement has terminated pursuant to its terms or the Claim by
PESI or any of the PESI Indemnitees under Article VIII exceeds the Remaining Escrow Amount, PESI
may then offset such portion of such Claim that cannot be satisfied out of the Escrow Amount
against its obligations to make payments to Parent provided for in this Agreement (including, but
not limited to, payments under the Note). Any Claim that PESI makes to offset against any of the
obligations to Parent under this Agreement or
the Note shall be subject to the appropriate Indemnification Procedures set forth in Section
8.4 hereof.

9.4 Notices. All notices and other communications hereunder shall be in writing and
shall be deemed given upon (a) transmitter’s confirmation of a receipt of a facsimile transmission,
(b) confirmed delivery by a standard overnight carrier or when delivered by hand, (c) the
expiration of five Business Days after the day when mailed in the United States by certified or
registered mail, postage prepaid, or (d) delivery in person, in each case addressed to the
following addresses (or at such other address for a party as shall be specified by like notice):

	 	 	 
	if to Parent and the Management
Investors, to:

	 	C. Thomas McMillen

Chief Executive Officer

Homeland Security Capital Corporation

4601 North Fairfax Drive

Arlington, VA 22203
	 
	 	 
	 

	 	Fax: (703) 528-0956

 

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	with a copy to (which copy shall
not constitute notice):

	 	Kenneth R. Koch, Esq.

Mintz Levin Cohn Ferris Glovsky

    and Popeo, P.C.

666 Third Avenue

New York, NY 10017

	 
	 	 
	 

	 	Fax: (212) 983-3115
	 
	 	 
	and (b) if to PESI to:

	 	Dr. Louis F. Centofanti

Chairman and Chief Executive Officer

Perma-Fix Environmental Services, Inc.

8302 Dunwoody Place, Suite 250

Atlanta, GA 30350
	 
	 	 
	 

	 	Fax: (770) 587-9937
	 
	 	 
	with a copy to (which copy shall
not constitute notice):

	 	Irwin H. Steinhorn, Esq.

Conner & Winters, LLP

1700 One Leadership Square

211 North Robinson Avenue

Oklahoma City, OK 73102
	 
	 	 
	 

	 	Fax: (405) 232-2695

9.5 Rules of Construction and Interpretation; Certain Definitions. 

(a) When a reference is made in this Agreement to Articles or Sections, such reference shall
be to an Article or a Section of this Agreement unless otherwise indicated.
Whenever the words “include,” “includes” or “including” are used in this Agreement they shall
be deemed to be followed by the words “without limitation.” The words “hereof,” “herein” and
“hereunder” and words of similar import when used in this Agreement shall refer to this Agreement
as a whole and not to any particular provision of this Agreement. References to “this Agreement,”
“hereof,” “herein,” and “hereunder” include any schedules, exhibits or other attachments to this
Agreement. The word “or” shall be deemed to mean “and/or.” The phrase “made available” when used in
this Agreement shall mean that the information referred to has been made available to the party to
whom such information is to be made available. The word “affiliates” when used in this Agreement
shall have the meaning ascribed to it in Rule 12b-2 under the Exchange Act. The phrase “beneficial
ownership” and words of similar import when used in this Agreement shall have the meaning ascribed
to it in Rule 13d-3 under the Exchange Act. All terms defined in this Agreement shall have the
defined meanings when used in any certificate or other document made or delivered pursuant hereto
unless otherwise defined therein. The definitions contained in this Agreement are applicable to the
singular as well as the plural forms of such terms and to the masculine as well as to the feminine
and neuter genders of such term. Any statute defined or referred to herein means such statute as
from time to time amended, modified or supplemented, including by succession of comparable
successor statutes and references to all attachments thereto and instruments incorporated therein.
References to a Person are also to its permitted successors and assigns.

 

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(b) Each of the parties acknowledges that it has been represented by counsel of its choice
throughout all negotiations that have preceded the execution of this Agreement and that it has
executed the same with the advice of said counsel. Each party and its counsel cooperated in the
drafting and preparation of this Agreement and the documents referred to herein, and any and all
drafts relating thereto exchanged among the parties shall be deemed the work product of the parties
and may not be construed against any party by reason of its preparation. Accordingly, any rule of
law or any legal decision that would require interpretation of any ambiguities in this Agreement
against any party that drafted it is of no application and is hereby expressly waived.

(c) The inclusion of any information in the Parent Disclosure Letter or PESI Disclosure Letter
shall not be deemed an admission or acknowledgment, in and of itself and solely by virtue of the
inclusion of such information in the Parent Disclosure Letter or PESI Disclosure Letter, as
applicable, that such information is required to be listed in the Parent Disclosure Letter or PESI
Disclosure Letter, as applicable, or that such items are material to the Company or PESI, as the
case may be.

(d) The following terms have the following definitions:

(i) “Business Day” means any day other than Saturday and Sunday and any
day on which banks are not required or authorized to close in the State of New York,
provided that if any date on which any action is required to be taken under this
Agreement is not a Business Day, such action will be required to be taken on the
next day which is a Business Day.

(ii) “Claim” shall mean any claim, action, suit, proceeding or
investigation.

(iii) “Cleanup” means all actions required under Environmental Laws or
by any applicable Governmental Entity to: (i) clean up, remove, treat or remediate
Hazardous Materials in the environment; (ii) prevent the Release or threatened
Release of Hazardous Materials so that they do not migrate, endanger or threaten to
endanger public health or welfare or the environment; (iii) perform pre-remedial
studies and investigations and post-remedial monitoring and care; or (iv) respond to
any government requests for information or documents in any way relating to cleanup,
removal, treatment or remediation or potential cleanup, removal, treatment or
remediation of Hazardous Materials in the environment.

(iv) “Code” means the U.S. Internal Revenue Code of 1986, as amended.

(v) “Commercially Reasonable Efforts” means, with respect to any party,
the agreement of such party to cooperate and to use its reasonable efforts
consistent with customary commercial practice without (i) payment or incurrence of
any liability or obligation, other than reasonable expenses, or (ii) the requirement
to engage in litigation.

 

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(vi) “Company Credit Agreement” means that certain Loan and Security
Agreement, dated March 17, 2008, by and among the Company, Company Subsidiaries, as
signatories thereto, and SunTrust Bank, as amended.

(vii) “Company IP” means all Intellectual Property used in or material
to the business of the Company or any of its Subsidiaries as currently conducted or
as currently proposed to be conducted.

(viii) “Employment and Withholding Taxes” means any federal, state,
provincial, local, foreign or other employment, unemployment, insurance, social
security, disability, workers’ compensation, payroll, health care or other similar
Tax and all Taxes required to be withheld by or on behalf of each of the Company and
any of its Subsidiaries, or PESI and any of its Subsidiaries, as the case may be, in
connection with amounts paid or owing to any employee, independent contractor,
creditor or other party, in each case, on or in respect of the business or assets
thereof.

(ix) “GAAP Liabilities” means the total amount of consolidated
liabilities of the Company and the Company Subsidiaries as reflected as the total
liabilities on the Estimated Closing Balance Sheet and determined in accordance with
GAAP.

(x) “Hazardous Material” means (i) chemicals, pollutants, contaminants,
wastes, toxic, hazardous substances, any radioactive materials and waste, and oil
and petroleum products, (ii) carbon dioxide and other greenhouse gases; (iii) any
substance that is or contains asbestos, urea formaldehyde foam insulation,
polychlorinated biphenyls, petroleum or petroleum-derived substances or wastes,
radon gas or related materials, lead or lead-based paint or materials or
radioactive materials or waste, (iv) any substance that requires investigation,
removal or remediation under any Environmental Law, or is defined, listed, regulated
or identified as hazardous, toxic or otherwise regulated under any Environmental
Law, (v) any substance that is toxic, explosive, corrosive, flammable, infectious,
radioactive, carcinogenic, mutagenic, or otherwise hazardous to human health or the
environment, (vi) naturally occurring radioactive material (NORM), or (vii) any
other substance which is subject of regulatory action by any Governmental Entity or
under any Environmental Law.

(xi) “Intellectual Property” means all patent applications, patents,
trademarks, service marks, corporate names, business names, brand names, trade
names, all other names and slogans embodying business or product goodwill (or both),
trade styles or dress, mask works, copyrights, works of authorship, moral rights of
authorship, rights in designs, trade secrets, technology, inventions, invention
disclosures, discoveries, improvements, know-how, program materials, processes,
methods, confidential and proprietary information, throughout the world and all
other intellectual and industrial property rights, throughout the world, whether or
not subject to statutory registration or protection and, with respect to each of the
foregoing, all registrations and applications for registration, renewals,
extensions, continuations, reissues, divisionals, improvements, modifications,
derivative works, goodwill, and common law rights, and causes of action relating to
any of the foregoing.

 

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(xii) “Knowledge” means, (i) with respect to Parent or the Company, the
actual Knowledge of C. Thomas McMillen, Michael T. Brigante, Christopher P.
Leichtweis, Raymond A. Peters, Robert M. Szozda, Donald J. Goebel, Carrie Z.
Daniels, Andrew J. Lombardo, Mark E. Kaye, Anne E. Smith and Andrew A. Henderson;
and (ii) with respect to PESI, the actual knowledge of Dr. Louis F. Centofanti and
Ben Naccarato.

(xiii) “Law” means any foreign, international, federal, state or local
law, treaty, convention, statute, code, ordinance, regulation, rule, order,
directive, principle of common law or other legally enforceable obligation imposed
by a court or other Governmental Entity.

(xiv) “Leichtweis” shall mean Christopher P. Leichtweis.

(xv) “Liability” and “Liabilities” means any debt, obligation,
or liability of any nature (including any undisclosed, unfixed, unliquidated,
unsecured, unmatured, unaccrued, contingent, conditional or inchoate liability,
including strict liability).

(xvi) “Lien” means any mortgage, pledge, deed of trust, hypothecation,
right of others, claim, security interest, encumbrance, burden, title defect, title
retention agreement, lease, sublease, license, occupancy agreement, easement,
covenant, condition, encroachment, voting trust agreement, interest, option, right
of first offer, negotiation or refusal, proxy, lien, charge or other
restrictions or limitations of any nature whatsoever.

(xvii) “Litigation” means any action, claim, suit, proceeding,
citation, summons, subpoena, inquiry or investigation of any nature, civil, criminal
or regulatory, in law or in equity, by or before any Governmental Entity or
arbitrator (including worker’s compensation claims).

(xviii) “Material Adverse Effect” means, with respect to Parent, the
Company or PESI, as the case may be, any (A) change, (B) effect, (C) event, (D)
occurrence, (E) state of facts or (F) development or developments, that results or
could reasonably be expected to result, individually or in the aggregate, in a
material adverse change on the business, properties, assets, liabilities (contingent
or otherwise), financial condition or results of operations of such party and its
Subsidiaries, taken as a whole, or on the ability of such party to consummate the
transactions contemplated by this Agreement; provided, that for purposes of
analyzing whether any change, effect, event, occurrence, state of facts or
development constitutes a Material Adverse Effect under this definition, the parties
agree that each of the terms contained in clauses (A) through (F) above are intended
to be separate and distinct. Notwithstanding the foregoing, the following shall not
be deemed to constitute a Material Adverse Effect: (i) changes resulting from the
announcement or pendency of this Agreement, or any actions taken by any party in
compliance with this Agreement or the consummation of the Acquisition, (ii) any
effect of any change in the United States, or foreign economies or securities or
financial markets in general, (iii) changes in applicable Law or United States
foreign or international generally accepted accounting principles or financial
reporting standards or interpretations thereof after the date of this Agreement,
(iv) any effect of any change that has the same or similar affect on all companies
within the industry in which the Company or any of the Company Subsidiaries operate
or (v) any effect resulting from an act of war or terrorism.

 

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(xix) “Permitted Lien” means (A) statutory Liens for Taxes, assessments
and other governmental charges which are not yet due and payable, provided the
liabilities that are secured by for such Liens are listed on the Estimated Closing
Balance Sheet, (B) statutory or common law Liens to secure sums not yet due to
landlords or sublandlords under leases or rental agreements, (C) deposits or pledges
made in connection with, or to secure payment of, workers’ compensation,
unemployment insurance, old age pension or other social security programs mandated
under applicable Laws, (D) statutory or common law Liens in favor of carriers,
warehousemen, mechanics, workmen, repairmen and materialmen to secure claims for
labor, materials or supplies and incurred in the ordinary course of business for
sums not yet due, (E) restrictions on transfer of securities imposed by applicable
state and federal securities Laws, (F) Liens resulting from a filing by a lessor as
a precautionary filing for a true lease, (G) deposits to secure the performance of
bids, trade contracts, leases, statutory obligations, surety and appeal bonds,
performance bonds and other obligations of
a like nature incurred in the ordinary course of business, and (H) Liens
granted and outstanding as of the date of this Agreement to a bonding company in
connection with guarantees issued by a bonding company on behalf of the Company or a
Company Subsidiary for bonded projects being performed by the Company and the
Company Subsidiaries as of the date of this Agreement which have been entered into
by the Company or a Company Subsidiary in the ordinary course of business consistent
with past practices. The above Permitted Liens will be subject to future liens
granted in favor of PNC Bank, National Association, as agent or otherwise, under any
financing documents it may enter into with PESI.

(xx) “Person” means any natural person, firm, individual, partnership,
court, joint venture, business trust, trust, association, corporation, company,
limited liability company, unincorporated entity or Governmental Entity.

(xxi) “Release” means any releasing, disposing, discharging, injecting,
spilling, leaking, pumping, dumping, emitting, escaping, emptying, dispersal,
leaching, migration, transporting or placing of Hazardous Materials or the
threatened Release of any Hazardous Materials, including into or upon, any land,
soil, surface water, ground water or air, or otherwise entering into the
environment.

 

74

 

(xxii) “Securities Act” means the Securities Act of 1933, as amended.

(xxiii) “SPRU Project” means Subcontract No. 2008-SC-SPRU-001 between
Safety and Ecology Corporation and subcontract to URS Energy & Construction, Inc.
for the U.S. Department of Energy for the deactivation, demolition, and removal of
the Separations Process Research Unit at the Knolls Atomic Power Laboratory in
Niskayuna, New York.

(xxiv) “Subsidiary” means, with respect to any Person, any other Person
of which (i) such Person is directly or indirectly a manager or general partner or
(ii) 50% or more of the securities or other equity interests having by their terms
ordinary voting power for the election or appointment of directors, managers or
others performing similar functions are directly or indirectly owned by such Person.

(xxv) “Tax” means all net income, gross income, gross receipts, sales,
use, ad valorem, transfer, accumulated earnings, personal holding company, excess
profits, franchise, profits, license, withholding, excise, severance, stamp,
occupation, premium, property, disability, capital stock, or windfall profits taxes,
customs duties or other taxes, fees, assessments or governmental charges of any kind
whatsoever, including Employment and Withholding Taxes, together with any interest
and any penalties, additions to tax or additional amounts imposed by any
Governmental Entity.

(xxvi) “Tax Return” means any return, estimated tax return, report,
declaration, form, claim for refund or information statement relating to Taxes,
including any schedule or attachment thereto, and including any amendment
thereof.

(xxvii) “Yorkville” has the meaning as set forth in Section 6.3(p)
hereof.

9.6 Headings; Disclosure Letters. The headings contained in this Agreement are for
reference purposes only and shall not affect in any way the meaning or interpretation of this
Agreement. Disclosure of any matter pursuant to any Section of the Parent Disclosure Letter or PESI
Disclosure Letter shall not be deemed to be an admission or representation as to the materiality of
the item so disclosed.

9.7 Counterparts. This Agreement may be executed in two or more counterparts, each of
which shall be deemed an original but all of which shall be considered one and the same agreement.

9.8 Entire Agreement. This Agreement and the Confidentiality and Non-Disclosure
Agreement between PESI and the Company dated March 25, 2010 constitute the entire agreement, and
supersede all prior agreements and understandings (written and oral), among the parties with
respect to the subject matter of this Agreement.

 

75

 

9.9 Severability. If any term, provision, covenant or restriction of this Agreement
is held by a court of competent jurisdiction or other authority to be invalid, void, unenforceable
or against its regulatory policy, the remainder of the terms, provisions, covenants and
restrictions of this Agreement shall remain in full force and effect and shall in no way be
affected, impaired or invalidated. Upon such determination that any term, provision, covenant or
restriction is invalid, void, unenforceable, overly broad or against public policy by any court of
competent jurisdiction, the parties intend that such court modify such provision to the extent
necessary so as to render it valid, effective, enforceable, reasonable and not overly broad and
such term, provision, covenant or restriction shall be deemed modified to the extent necessary to
provide the intended benefits to modify this Agreement so as to effect the original intent of the
parties, as evidenced by this Agreement, as closely as possible in a mutually acceptable manner in
order that the transactions as originally contemplated hereby are fulfilled to the fullest extent
possible.

9.10 Governing Law. This Agreement shall be governed, construed and enforced in
accordance with the laws of the State of Delaware without giving effect to the principles of
conflicts of law thereof.

9.11 Assignment. Neither this Agreement nor any of the rights, interests or obligations hereunder shall be
assigned by any of the parties hereto (whether by operation of law or otherwise) without the prior
written consent of the other parties.

9.12 Parties in Interest. This Agreement shall be binding upon and inure solely to
the benefit of each party to this Agreement and their permitted assignees, and nothing in this
Agreement, express or implied, is intended to or shall confer upon any other Person any rights,
benefits or remedies of any nature whatsoever under or by reason of this Agreement. Without
limiting the foregoing, no direct or indirect holder of any equity interests or securities of any
party to this Agreement (whether such holder is a limited or general partner, member, stockholder
or otherwise), nor any Affiliate of any party to this Agreement, nor any Representative or other
controlling Person of each of the parties to this Agreement and their respective Affiliates, except
the Parent, shall have any Liability or obligation arising under this Agreement or the transactions
contemplated hereby. Other than as set forth in this Section 9.10, Parent and the Company
acknowledge and agree that all provisions contained in this Agreement with respect to the Company
employees are included for the sole benefit of the Company and PESI, and that nothing in this
Agreement, whether express or implied, shall create any third party beneficiary or other rights (i)
in any other Person, including, without limitation, any employees, former employees, any
participant in any Company Employee Benefit Plan or other benefit plan or arrangement, or any
dependent or beneficiary thereof, or (ii) to continued employment with the Company, PESI, or any of
their respective Subsidiaries.

 

76

 

9.13 Intentionally Omitted.

9.14 Jurisdiction. Each of the parties agrees that any claim, suit, action or
proceeding seeking to enforce any provision of, or based on any matter arising out of, under or in
connection with, this Agreement or the transactions contemplated hereby shall be heard and
determined in the Chancery Court of the State of Delaware (and each agrees that no such claim,
suit, action or proceeding relating to this Agreement shall be brought by it or any of its
Affiliates except in such court), and the parties hereby irrevocably and unconditionally submit to
the exclusive jurisdiction of such court in any such claim, suit, action or proceeding and
irrevocably and unconditionally waive the defense of an inconvenient forum to the maintenance of
any such claim, suit, action or proceeding; provided, however, that if the Chancery Court of the
State of Delaware declines to accept jurisdiction over a particular matter, any state or federal
court within the State of Delaware shall be deemed sufficient for purposes of this Section 9.14.
Each of the parties hereto further agree that, to the fullest extent permitted by applicable Law,
service of any process, summons, notice or document in any such claim, suit, action or proceeding
may be served on any Person anywhere in the world, whether within or without the jurisdiction of
any such court. Without limiting the foregoing, each party agrees that service of process on such
party as provided in this Section 9.14 shall be deemed effective service of process on such party.
The parties hereto hereby agree that a final, non-appealable judgment in any such claim, suit,
action or proceeding shall be conclusive and may be enforced in other jurisdictions in the
world by suit on the judgment or in any other manner provided by applicable Law.

[SIGNATURE PAGE FOLLOWS]

 

77

 

IN WITNESS WHEREOF, PESI, Parent and the Company have caused this Agreement to be signed by
their respective officers thereunto duly authorized as of the date first written above.

	 	 	 	 	 
	 	PERMA-FIX ENVIRONMENTAL SERVICES, INC., 

a Delaware
corporation

 	 
	 	By:  	/s/ Dr. Louis F. Centofanti
 	 
	 	 	Name:  	Dr. Louis F. Centofanti 	 
	 	 	Title:  	President 	 
	 
	 	(“PESI”)

HOMELAND SECURITY CAPITAL CORPORATION, 

a Delaware
corporation

 	 
	 	By:  	/s/ C. Thomas McMillen
 	 
	 	 	Name:  	C. Thomas McMillen 	 
	 	 	Title:  	Chief Executive Officer 	 
	 
	 	(“Parent”)

SAFETY & ECOLOGY HOLDINGS CORPORATION, 

a Nevada
corporation

 	 
	 	By:  	/s/ Christopher Paul Leichtweis
 	 
	 	 	Name:  	Christopher Paul Leichtweis 	 
	 	 	Title:  	President, Chief Executive Officer 	 
	 
	 	(the “Company”)
 	 

Signature to Stock Purchase Agreement

 

78

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