Exhibit 7.1

RATIOS OF EARNINGS TO FIXED CHARGES

The following table sets out our ratios of earnings to fixed charges for each of the five years ended 31 December 2013, 2012, 2011, 2010
and 2009 based on information derived from our consolidated financial statements, which are prepared in accordance with International Financial Reporting Standards (IFRS).



|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|---------------------------------------------------------------------- |  | ---------------------- | ------ |  | ------- |  | ------ | ------- |  |  | ------ |  |  | ---- | ------ |  |  |  | ------ | 
|                                                                       |  | Year ended 31 December |       
|                                                                       |  | 2013                   |        |  | 2012(1) |  |        | 2011(1) |  |  | 2010   |  |  | 2009 |       
|Earnings:                                                              |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Profit from operations before taxes and share of results of associates |  |                        | 18,240 |  |         |  | 10,380 |         |  |  | 9,062  |  |  |      | 7,161  |  |  |  | 7,150  | 
|Add: Fixed charges (below)                                             |  |                        | 2,389  |  |         |  | 2,361  |         |  |  | 3,702  |  |  |      | 4,313  |  |  |  | 5,014  | 
|Less: Interest capitalized (below)                                     |  |                        | 38     |  |         |  | 57     |         |  |  | 110    |  |  |      | 35     |  |  |  | 4      | 
|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Total earnings                                                         |  |                        | 20,591 |  |         |  | 12,684 |         |  |  | 12,654 |  |  |      | 11,439 |  |  |  | 12,160 | 
|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Fixed charges:                                                         |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Interest expense and similar charges                                   |  |                        | 2,005  |  |         |  | 2,008  |         |  |  | 3,216  |  |  |      | 3,848  |  |  |  | 4,394  | 
|Accretion expense                                                      |  |                        | 261    |  |         |  | 209    |         |  |  | 286    |  |  |      | 351    |  |  |  | 526    | 
|Interest capitalized                                                   |  |                        | 38     |  |         |  | 57     |         |  |  | 110    |  |  |      | 35     |  |  |  | 4      | 
|Estimated interest portion of rental expense                           |  |                        | 85     |  |         |  | 87     |         |  |  | 90     |  |  |      | 79     |  |  |  | 90     | 
|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Total fixed charges                                                    |  |                        | 2,389  |  |         |  | 2,361  |         |  |  | 3,702  |  |  |      | 4,313  |  |  |  | 5,014  | 
|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 
|Ratio of earnings to fixed charges                                     |  |                        | 8.62   |  |         |  | 5.37   |         |  |  | 3.42   |  |  |      | 2.65   |  |  |  | 2.43   | 
|                                                                       |  |                        |        |  |         |  |        |         |  |  |        |  |  |      |        |  |  |  |        | 



Note:



|(1) | 2011 and 2012 as reported, adjusted to reflect the changes on the segment reporting. See Item 5. Operating and Financial Review  B. Significant Accounting Policies.
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------

The ratio of earnings to fixed charges represents the number of times fixed charges are covered by earnings. For the purposes of computing
this ratio, earnings consist of profit from operations before taxes and share of results of associates, plus fixed charges, minus interest capitalized during the period. Fixed charges consist of interest and accretion expense, interest on finance
lease obligations, interest capitalized, plus one-third of rent expense on operating leases, estimated by the company as representative of the interest factor attributable to such rent expense.

The Parent Guarantor did not have any preferred stock outstanding and did not pay or accrue any preferred stock dividends during the periods
presented above.