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Commitments and contingencies (Tables)
12 Months Ended
Dec. 31, 2022
Commitments and contingencies  
Schedule of other assessments

    

    

Penalty and

    

Year

Taxes

interest

Total

US$(000)

US$(000)

US$(000)

2003 - 2005

 

8,684

39,366

48,050

2006

 

10,840

51,955

62,795

2007

 

11,579

22,102

33,681

2008

 

16,906

16,923

33,829

2009

 

56,000

51,604

107,604

2010

 

53,566

125,047

178,613

2011

 

40,802

66,506

107,308

2012

 

869

6,917

7,786

2013

 

48,402

65,849

114,251

2014

 

5,434

724

6,158

2015

 

2,986

23,205

26,191

2016

60,041

3,268

63,309

2017

 

4,815

2,920

7,735

320,924

476,386

797,310