All Subcontractors are subject to a vetting procedure prior to commencing work on site to establish their financial standing and competency to safety undertake the work on site to a required quality and cost.

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Suppliers: Purchases of materials or services that affect the quality of the Company’s service are made only from suppliers approved on the basis of one or more of the following:

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• Evidence of a satisfactory management system;

• A quality, safety and environmental audit;

• Satisfactory previous supply;

• Client specification.

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Each operation has a competent person who is responsible for assessing and approving the effectiveness of a supplier’s ability to meet the specified quality, technical, environmental, health & safety and commercial conditions of any process related contract. This person is also responsible for maintaining and updating the list of approved suppliers. Records of supplier performance are kept.

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Purchases may be made from new suppliers, on a trial basis prior to formal approval.

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A reassessment of the supplier is carried out:

• If they fail to achieve the required standard of supply;

• If there is a deterioration in the standard of service;

• If they do not comply with appropriate health, safety and environmental standards;

• If there is a change to the material, location or manufacturing process;

• Annually prior to Management Review, based on nonconformity records.

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Records of supplier selection and reassessment are maintained.