Contractor Compliance Process Contractor Management Content RTK has

Contractor Compliance Process Contractor Management

Content RTK has established requirements for Contractor Companies that aligns with our vision and values for assessment and selection: Mandatory Documents; Copies of their OSHA 300 A logs for the last 3 years and copies of their EMR documentation for this year and the last 3 years. Historical Safety Requirements • Company provides NAICS Code • Total Recordable Rate (TRR) must not be greater than 85% of Industry Average • Lost Work Rate (LWR) must not be greater than 85% of Industry Average • Days Away, Restricted or Transferred (DART) must not be greater than 85% of Industry Average • The Experience Modification Rate (ERM) must not be greater than 1. 0

Definitions NAICS Codes – North American Industry Classification System BLS – Bureau of Labor Statistics ( Industry Average is obtained from this department ) OSHA 300 Summary Log – Is a record of work related injuries and illnesses in a workplace that have occurred during a specific time period Total Recordable Rate – A mathematical calculation that describes the number of recordable incident per 100 full-time employees in any given time frame Lost Workday Rate – A mathematical calculation that described the number of lost workdays per 100 full-time employees in any given time frame Dart Rate – A mathematical calculation that describes the number of recordable incidents per 100 full-time employees that resulted in lost or restricted days or job transfer due to work related injuries or illness EMR – Experience Modification Rate – It is a number used by insurance companies to gauge both past cost od injuries and future chances of risk and 1. 0 being industry average

Non-Compliance Where deviations or exceptions from the assessment process are necessary, a process must be followed and approved by a Rio Tinto senior leader (General Manager). The Recovery Plan Process or Pre-job Checklist document signed off by a General Manager.

Insurance To improve the transparency of the recovery plan process with risk ranking criteria and governance that aligns with our vision of Zero Harm and sustainability

Definitions General Liability – Category 3 companies $5, 000 limit per occurrence - Category 1 & Delivery companies $2, 000 limit per occurrence Required Endorsements – Additional Insured – A copy of the endorsement page naming Kennecott Utah Copper as additional insured. - Waiver of Subrogation – covers subcontractors Auto Policy - State guidelines Worker’s Compensation – Statutory follows state laws also determines Experience Modification Rate

Non-compliance Where deviations or exceptions from the assessment process are necessary, a process must be followed and approved by a Rio Tinto senior leader (General Manager). Risks – without verification of these insurance requirements opens RTK to liability issues.

Federal Government Requirements All companies that are under Federal Government jurisdiction and guidelines must perform 1 -9 document and background checks. RTK requires all companies to sign acknowledgement forms, prepared by RTK legal, that confirms that this is being done.

Non-compliance Where deviations or exceptions from the assessment process are necessary, a process must be followed and approved by a Rio Tinto senior leader (General Manager). Risks – without verification of these requirements opens RTK to liability issues.

Summary Following our RTK visions, values, standards and policies have improved our contractor partners safety, accountability and governance. Following processes improve efficiency and trust. Approving deviations or exception should be used for emergency. Number 1 priority is safety not schedule.