Exhibit 99.4
 Mine Safety Information Pursuant to Section 1503(a) of the
Dodd-Frank Wall Street Reform and Consumer Protection Act
  Year Ended December 31, 2010PendingTotal
    
    
    
    
    
    legal actionTotal # of
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    Amount of
    
    
    
    
    
    before theSignificant
    
    
    
    
    
    Total # of
    
    
    
    
    
    Total # of
    
    Proposed
    
    
    
    
    
    Federaland
    
    Total # of
    
    Citations
    
    Total # of
    
    Imminent
    
    Penalties
    
    
    
    
    
    Mine SafetySubstantial
    
    Orders
    
    and Orders
    
    Flagrant
    
    Danger
    
    from
    
    Total # of
    
    and HealthViolations
    
    Issued
    
    Issued
    
    Violations
    
    Orders
    
    MSHA
    
    Mine-
    
    ReviewMine or
    
    Under
    
    Under
    
    Under
    
    Under
    
    Under
    
    under the
    
    Related
    
    CommissionOperation1:
    
    §1042
    
    §104(b)3
    
    §104(d)4
    
    §110(b)(2)5
    
    §107(a)6
    
    Mine Act7
    
    Fatalities8
    
    (yes/no)9Marigold Mine
    
    
    2
    
    
    
    0
    
    
    
    0
    
    
    
    0
    
    
    
    0
    
    
    $
    3,174
    
    
    
    0
    
    
    NoWarf Mine
    
    
    5
    
    
    
    0
    
    
    
    0
    
    
    
    0
    
    
    
    0
    
    
    $
    7,132
    
    
    
    0
    
    
    No
 
 1
    
    MSHA assigns an identification number to each
mine or operation and may or may not assign separate identification numbers to
related facilities. The information provided in this table is presented by
mine or operation rather than MSHA identification number because that is how
the Company manages and operates its business, and the Company believes this
presentation is more useful to investors.2
    
    Represents the total number of citations
issued by MSHA under Section 104 of the Mine Act for violations of health or
safety standards that could significantly and substantially contribute to a
serious injury if left unabated.3
    
    Represents the total number of orders issued
under Section 104(b) of the Mine Act, which represents a failure to abate a
citation under Section 104(a) of the Mine Act within the period prescribed by
MSHA. This results in an order of immediate withdrawal from the area of the
mine affected by the condition until MSHA determines the violation has been
abated.4
    
    Represents the total number of citations and
orders issued by MSHA under Section 104(d) of the Mine Act for unwarrantable
failure to comply with mandatory health or safety standards.5
    
    Represents the total number of flagrant
violations identified by MSHA under Section 110(b)(2) of the Mine Act.6
    
    Represents the total number of imminent
danger orders issued under Section 107(a) of the Mine Act.7
    
    Amounts represent the total United States
dollar value of proposed assessments received from MSHA during the year ended
December 31, 2010.8
    
    Represents the total number of mining-related
fatalities at mines subject to the Mine Act pursuant to Section 1503(a)(1)(G)
of the Financial Reform Act.9
    
    Represents the total number of legal actions
initiated during 2010 before the Federal Mine Safety and Health Review
Commission as required by Section 1503(a) of the Financial Reform Act.