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正确答案：
(c) The objective of a review engagement is to enable the auditor to obtain moderate assurance as to whether the financial
statements have been prepared in accordance with an identified financial reporting framework. This is defined in ISRE 2400
Engagements to Review Financial Statements.
In order to obtain this assurance, it is necessary to gather evidence using analytical procedures and enquiries with
management. Detailed substantive procedures will not be performed unless the auditor has reason to believe that the
information may be materially misstated.
The auditor should approach the engagement with a high degree of professional scepticism, looking for circumstances that
may cause the financial statements to be misstated. For example, in Hugh Co, the fact that the preparer of the financial
statements is part-qualified may lead the auditor to believe that there is a high inherent risk that the figures are misstated.
As a result of procedures performed, the auditor’s objective is to provide a clear written expression of negative assurance on
the financial statements. In a review engagement the auditor would state that ‘we are not aware of any material modifications
that should be made to the financial statements….’
This is normally referred to as an opinion of ‘negative assurance’.
Negative assurance means that the auditor has performed limited procedures and has concluded that the financial statements
appear reasonable. The user of the financial statements gains some comfort that the figures have been subject to review, but
only a moderate level of assurance is provided. The user may need to carry out additional procedures of their own if they
want to rely on the financial statements. For example, if Hugh Co were to use the financial statements as a means to raise
further bank finance, the bank would presumably perform, or require Hugh Co to perform, additional procedures to provide
a higher level of assurance as to the validity of the figures contained in the financial statements.
In comparison, in an audit, a high level of assurance is provided. The auditors provide an opinion of positive, but not absolute
assurance. The user is assured that the figures are free from material misstatement and that the auditor has based the opinion
on detailed procedures.

正确答案：

You will be aware of the importance of accurate resource valuation to Worldwide Minerals (WM). Unfortunately, I have to
inform. you that the reserve of mallerite, one of our key minerals in a new area of exploration, was found to have been
overestimated after the purchase of a mine. It has been suggested that this information may have an effect on shareholder
value and so I thought it appropriate to write to inform. you of how the board intends to respond to the situation.
In particular, I would like to address two issues. It has been suggested that the overestimation arose because of issues with
the internal control systems at WM. I would firstly like to reassure you of the importance that your board places on sound
internal control systems and then I would like to highlight improvements to internal controls that we shall be implementing
to ensure that the problem should not recur.
(i) Importance of internal control
Internal control systems are essential in all public companies and Worldwide Minerals (WM) is no exception. If anything,
WM’s strategic position makes internal control even more important, operating as it does in many international situations
and dealing with minerals that must be guaranteed in terms of volume, grade and quality. Accordingly, your board
recognises that internal control underpins investor confidence. Investors have traditionally trusted WM’s management
because they have assumed it capable of managing its internal operations. This has, specifically, meant becoming aware
of and controlling known risks. Risks would not be known about and managed without adequate internal control
systems. Internal control, furthermore, helps to manage quality throughout the organisation and it provides
management with information on internal operations and compliance. These features are important in ensuring quality
at all stages in the WM value chain from the extraction of minerals to the delivery of product to our customers. Linked
to this is the importance of internal control in helping to expose and improve underperforming internal operations.
Finally, internal control systems are essential in providing information for internal and external reporting upon which, in
turn, investor confidence rests.
(ii) Proposals to improve internal systems at WM
As you may be aware, mineral estimation and measurement can be problematic, particularly in some regions. Indeed,
there are several factors that can lead to under or overestimation of reserves valuations as a result of geological survey
techniques and regional cultural/social factors. In the case of mallerite, however, the issues that have been brought to
the board’s attention are matters of internal control and it is to these that I would now like to turn.
In first instance, it is clear from the fact that the overestimate was made that we will need to audit geological reports at
an appropriate (and probably lower) level in the organisation in future.
Once a claim has been made about a given mineral resource level, especially one upon which investor returns might
depend, appropriate systems will be instituted to ask for and obtain evidence that such reserves have been correctly and
accurately quantified.
We will recognise that single and verbal source reports of reserve quantities may not necessarily be accurate. This was
one of the apparent causes of the overestimation of mallerite. A system of auditing actual reserves rather than relying
on verbal evidence will rectify this.
The purchase of any going concern business, such as the mallerite mine, is subject to due diligence. WM will be
examining its procedures in this area to ensure that they are fit for purpose in the way that they may not have been in
respect of the purchase of the mallerite mine. I will be taking all appropriate steps to ensure that all of these internal
control issues can be addressed in future.
Thank you for your continued support of Worldwide Minerals and I hope the foregoing goes some way to reassure you
that the company places the highest value on its investors and their loyalty.
Yours faithfully,
Tim Blake
Chairman

正确答案：
(b) Implications for auditor’s report
(i) Selective revaluation of premises
The revaluations are clearly material to the balance sheet as $1·7 million and $5·4 million represent 5·5% and 17·6%
of total assets, respectively (and 23·1% in total). As the effects of the revaluation on line items in the financial statements
are clearly identified (e.g. revalued amount, depreciation, surplus in statement of changes in equity) the matter is not
pervasive.
The valuations of the nine properties after the year end provide additional evidence of conditions existing at the year end
and are therefore adjusting events per IAS 10 Events After the Balance Sheet Date.
Tutorial note: It is ‘now’ still less than three months after the year end so these valuations can reasonably be expected
to reflect year end values.
However, IAS 16 Property, Plant and Equipment does not permit the selective revaluation of assets thus the whole class
of premises would need to have been revalued for the year to 31 March 2007 to change the measurement basis for this
reporting period.
The revaluation exercise is incomplete. Unless the remaining three properties are revalued before the auditor’s report on
the financial statements for the year ended 31 March 2007 is signed off:
(1) the $7·1 revaluation made so far must be reversed to show all premises at depreciated cost as in previous years;
OR
(2) the auditor’s report would be qualified ‘except for’ disagreement regarding non-compliance with IAS 16.
When it is appropriate to adopt the revaluation model (e.g. next year) the change in accounting policy (from a cost model
to a revaluation model) should be accounted for in accordance with IAS 16 (i.e. as a revaluation).
Tutorial note: IAS 8 Accounting Policies, Changes in Accounting Estimates and Errors does not apply to the initial
application of a policy to revalue assets in accordance with IAS 16.
Assuming the revaluation is written back, before giving an unmodified opinion, the auditor should consider why the three
properties were not revalued. In particular if there are any indicators of impairment (e.g. physical dilapidation) there
should be sufficient evidence on the working paper file to show that the carrying amount of these properties is not
materially greater than their recoverable amount (i.e. the higher of value in use and fair value less costs to sell).
If there is insufficient evidence to confirm that the three properties are not impaired (e.g. if the auditor was prevented
from inspecting the properties) the auditor’s report would be qualified ‘except for’ on grounds of limitation on scope.
If there is evidence of material impairment but management fail to write down the carrying amount to recoverable
amount the auditor’s report would be qualified ‘except for’ disagreement regarding non-compliance with IAS 36
Impairment of Assets.

正确答案：
(b) Opening stock of finished goods = ￡69,800
Closing stock of finished goods = 2,000 x 18·66 = ￡37,320
Cost of sales for three-month period = 69,800 + 2,262,380 – 37,320 = ￡2,294,860