|   | 
(unaudited) Six months ended 30th June | 
Year ended 31st December | 
|   | 
1998 
US$m | 
  | 
1997
 US$m | 
  | 
1997
 US$m | 
  | 
  | 
 Operating activities | 
  | 
  | 
  | 
  | 
  | 
  | 
 Operating profit | 
  | 
 49.2 | 
  | 
  | 
  | 
 35.9 | 
  | 
  | 
  | 
 117.0 | 
  | 
 Depreciation and amortisation | 
  | 
 62.3 | 
  | 
  | 
  | 
 71.0 | 
  | 
  | 
  | 
 142.7 | 
  | 
 Other non-cash items | 
  | 
 3.5 | 
  | 
  | 
  | 
 0.1 | 
  | 
  | 
  | 
 9.5 | 
  | 
 (Increase)/decrease in working capital | 
  | 
 (61.1) | 
  | 
  | 
  | 
 64.2 | 
  | 
  | 
  | 
 156.3 | 
  | 
 Net interest income/(expense) | 
  | 
 3.7 | 
  | 
  | 
  | 
 (6.9) | 
  | 
  | 
  | 
 (13.5) | 
  | 
 Net tax paid | 
  | 
 (12.8)
 
  | 
  | 
  | 
  | 
 (7.4)
 
  | 
  | 
  | 
  | 
 (19.5)
 
  | 
  | 
|   | 
  | 
 44.8 | 
  | 
  | 
  | 
 156.9 | 
  | 
  | 
  | 
 392.5 | 
  | 
 Dividends from associates | 
  | 
 27.6
 
  | 
  | 
  | 
  | 
 20.1
 
  | 
  | 
  | 
  | 
 40.0
 
  | 
  | 
 Cash flows from operating activities | 
 72.4 | 
  | 
 177.0 | 
  | 
 432.5 | 
  | 
  | 
 Investing activities | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 Purchase of tangible assets | 
  | 
 (58.9) | 
  | 
  | 
  | 
 (58.4) | 
  | 
  | 
  | 
 (214.2) | 
  | 
 Purchase of subsidiaries | 
  | 
 - | 
  | 
  | 
  | 
 (0.5) | 
  | 
  | 
  | 
 (0.2) | 
  | 
 Purchase of associates and 
 other investments (note 6a) | 
  | 
 (43.0) | 
  | 
  | 
  | 
 (12.6) | 
  | 
  | 
  | 
 (19.5) | 
  | 
 Loans to associates | 
  | 
 (0.2) | 
  | 
  | 
  | 
 (0.9) | 
  | 
  | 
  | 
 (0.9) | 
  | 
 Sale of tangible assets | 
  | 
 12.9 | 
  | 
  | 
  | 
 1.2 | 
  | 
  | 
  | 
 8.8 | 
  | 
 Sale of subsidiaries (note 6b) | 
  | 
 119.9 | 
  | 
  | 
  | 
 3.4 | 
  | 
  | 
  | 
 3.5 | 
  | 
 Sale of associates (note 6c) | 
  | 
 292.8
 
  | 
  | 
  | 
  | 
 -
 
  | 
  | 
  | 
  | 
 39.9
 
  | 
  | 
 Cash flows from investing activities | 
 323.5 | 
  | 
  | 
  | 
 (67.8) | 
  | 
  | 
  | 
 (182.6) | 
  | 
  | 
 Financing activities | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
  | 
 Contribution from minority shareholders | 
  | 
 10.9 | 
  | 
  | 
  | 
 0.9 | 
  | 
  | 
  | 
 6.1 | 
  | 
 Exercise of share options | 
  | 
 1.0 | 
  | 
  | 
  | 
 1.1 | 
  | 
  | 
  | 
 1.8 | 
  | 
 Repurchase of convertible preference
 shares | 
  | 
 (10.3) | 
  | 
  | 
  | 
- | 
  | 
  | 
  | 
- | 
  | 
 Net increase/(decrease) in term loans | 
  | 
 10.3 | 
  | 
  | 
  | 
 (41.7) | 
  | 
  | 
  | 
 (84.4) | 
  | 
 Dividends paid by the Company | 
  | 
 (87.4) | 
  | 
  | 
  | 
 (41.8) | 
  | 
  | 
  | 
 (69.2) | 
  | 
 Dividends paid to minority shareholders  | 
  | 
 (0.4)
 
  | 
  | 
  | 
  | 
 (0.6)
 
  | 
  | 
  | 
  | 
 (1.2)
 
  | 
  | 
 Cash flows from financing activities | 
 (75.9) | 
  | 
  | 
  | 
 (82.1) | 
  | 
  | 
  | 
 (146.9) | 
  | 
 Effect of exchange rate changes on cash 
 and cash equivalents | 
 (1.9)
 
  | 
  | 
  | 
  | 
 0.2
 
  | 
  | 
  | 
  | 
 0.8
 
  | 
  | 
 Net increase in cash and cash equivalents | 
 318.1 | 
  | 
  | 
  | 
 27.3 | 
  | 
  | 
  | 
 103.8 | 
  | 
 Cash and cash equivalents at beginning of
 period | 
 522.4
 
  | 
  | 
  | 
  | 
 418.6
 
  | 
  | 
  | 
  | 
 418.6
 
  | 
  | 
 Cash and cash equivalents at end of period | 
 840.5
 
  | 
  | 
  | 
  | 
 445.9
 
  | 
  | 
  | 
  | 
 522.4
 
  | 
  | 
  | 
|   | 
|   | 
 USą | 
  | 
 USą | 
  | 
 USą | 
  | 
Cash flow per ordinary share from 
 operating activities | 
3.96 | 
  | 
10.05 | 
  | 
24.10 | 
  |