PRSS 2017 Annual Report

FORM 10-K I
TABLE OF CONTENTS III
STATEMENT REGARDING FORWARD-LOOKING INFORMATION 1
PART I 1
ITEM 1. Business 1
ITEM 1A. RISK FACTORS 8
ITEM 1B. Unresolved Staff Comments 26
ITEM 2. Properties 26
ITEM 3. Legal Proceedings 27
ITEM 4. Mine Safety Disclosures 27
PART II 28
ITEM 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchasesof Equity Securities 28
ITEM 6. Selected Financial Data 29
ITEM 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations 29
ITEM 7A. Quantitative and Qualitative Disclosures about Market Risk 42
ITEM 8. Financial Statements and Supplementary Data 44
ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure 68
ITEM 9A. Controls and Procedures 68
ITEM 9B. Oother Information 69
PART III 70
ITEM 10. Directors, Executive Officers and Corporate Governance 70
ITEM 11. Executive Compensation 70
ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters 70
ITEM 13. Certain Relationships and Related Transactions, and Director Independence 71
ITEM 14. Principal Accounting Fees and Services 71
PART IV 72
ITEM 15. Exhibits, Financial Statement Schedules 72
ITEM 16. Form 10-K Summary 75
SIGNATURES 76

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