We have complied with the International Federation of Accountants’ Code of Ethics for Professional Accountants, which includes comprehensive independence and other requirements founded on fundamental principles of integrity, objectivity, and professional competence and due care, confidentiality and professional behaviour. Our engagement was conducted by a multidisciplinary team of health, safety, environmental and assurance specialists with extensive experience in sustainability reporting.

The subject matter of our engagement and the related level of assurance that we are required to provide are as follows:

The following identified sustainable development information in the Report was selected for an expression of limited assurance:

We refer to this information as the “Subject Matter Selected for Limited Assurance”.

We have not carried out any work on data reported for prior reporting periods except for data that was included in the prior year’s assurance scope, nor have we performed work in respect of future projections and targets. We have not conducted any work outside of the agreed scope and therefore restrict our opinion to the Selected Identified Sustainable Development Information.

The directors are responsible for selection, preparation and presentation of the Selected Identified Sustainable Development Information in accordance with the criteria set out in BLT’s internally defined procedures set out in the Glossary of terms and acronyms on Page 237 of the Integrated Annual Report and the Global Reporting Initiative’s (GRI) new generation (G3.1) guidelines, collectively referred to as the “Reporting Criteria”, and for the development of the Reporting Criteria. The directors are also responsible for such internal control as the directors determine is necessary to enable the preparation of the Selected Identified Sustainability Development Information that are free from material misstatements, whether due to fraud or error.

Our responsibility is to form an independent conclusion, based on our limited assurance procedures, on whether anything has come to our attention to indicate that the Selected Identified Sustainable Development Information has not been prepared, in all material respects, in accordance with the Reporting Criteria.

This report, including the conclusion, has been prepared solely for the directors of BLT as a body, to assist the directors in reporting on BLT’s sustainable development performance and activities. We permit the disclosure of this report within the Report for the year ended 31 May 2012, to enable the directors to demonstrate they have discharged their governance responsibilities by commissioning an independent assurance report in connection with the Report. To the fullest extent permitted by law, we do not accept or assume responsibility to anyone other than the directors as a body and BLT for our work or this report save where terms are expressly agreed and with our prior consent in writing.

We conducted our limited assurance engagement in accordance with International Standard on Assurance Engagements 3000 (Revised) – ‘Assurance Engagements other than Audits and Reviews of Historical Financial Information’ issued by the International Auditing and Assurance Standards Board (ISAE 3000). This standard requires that we comply with ethical requirements and that we plan and perform the assurance engagement to obtain limited assurance on the Selected Identified Sustainability Information as per the terms of our engagement.

Our limited assurance procedures primarily comprised:

The procedures selected depend on our judgement, including the assessment of the risk of material misstatement of the Selected Identified Sustainable Development Information, whether due to fraud or error. In making those risk assessments, we consider internal control relevant to BLT’s preparation of the Selected Identified Sustainable Development Information in order to design procedures that are appropriate in the circumstances.

We believe that the evidence we have obtained is sufficient and appropriate to provide a basis for our conclusion.

Non-financial performance information is subject to more inherent limitations than financial information, given the characteristics of the subject matter and the methods used for determining, calculating, sampling and estimating such information. The absence of a significant body of established practice on which to draw allows for the selection of different but acceptable measurement techniques which can result in materially different measurements and can impact comparability. Qualitative interpretations of relevance, materiality and the accuracy of data are subject to individual assumptions and judgements. The precision of different measurement techniques may also vary. Furthermore, the nature and methods used to determine such information, as well as the measurement criteria and the precision thereof, may change over time. It is important to read the Report in the context of the Reporting Criteria.

In particular, where the information relies on factors derived by independent third parties, our assurance work has not included examination of the derivation of those factors and other third party information.

Based on the results of our procedures nothing has come to our attention that causes us to believe that the Selected Identified Sustainable Development Information for the year ended 31 May 2012, has not been prepared, in all material respects, in accordance with the Reporting Criteria.

The maintenance and integrity of the BLT’s website is the responsibility of BLT management. Our procedures did not involve consideration of these matters and, accordingly we accept no responsibility for any changes to either the information in the Report or our independent assurance report that may have occurred since the initial date of presentation on the BLT website.

PricewaterhouseCoopers Inc.
Director: Wessie van der Westhuizen
Registered Auditor

Johannesburg
23 October 2012