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Provisions (Tables)
12 Months Ended
Dec. 31, 2022
Provisions [abstract]  
Schedule of provisions
United States Dollar
Figures in millions unless otherwise stated20222021
25.1Environmental rehabilitation costs387.7 430.9 
25.2Silicosis settlement costs10.5 13.1 
Other1.9 2.6 
Total provisions400.1 446.6 
Current portion of provisions(18.5)(12.6)
Non-current portion of provisions381.6 434.0 
25.1Environmental rehabilitation costs
Balance at beginning of the year430.9 381.5 
Changes in estimates - capitalised1
(22.1)66.1 
Changes in estimates - recognised in profit or loss1
(8.9)10.8 
Interest expense11.8 8.6 
Payments(10.8)(23.7)
Translation adjustment(13.2)(12.4)
Balance at end of the year2
387.7 430.9 
Current portion of environmental rehabilitation costs(17.2)(12.0)
Non-current portion of environmental rehabilitation costs370.5 418.9 
The provision is calculated using the following gross closure cost estimates:
South Africa47.2 41.1 
Ghana101.0 98.9 
Australia215.4 214.4 
Peru148.4 126.4 
Chile52.8 29.7 
Total gross closure cost estimates564.8 510.5 

The provision is calculated using the following assumptions:Inflation rate Year 1 Inflation rate Year 2Inflation rate Year 3Inflation rate Year 4 onwardsDiscount rate
2022
South Africa5.3 %4.7 %4.6 %4.6 %11.4 %
Ghana3.4 %2.6 %2.4 %2.4 %
15.0% – 15.2%
Australia4.8 %2.9 %2.7 %2.5 %
4.0% – 4.3%
Peru3.4 %2.6 %2.4 %2.4 %5.4 %
Chile3.4 %2.6 %2.4 %2.4 %4.7 %
2021
South Africa4.5 %4.5 %4.5 %4.5 %10.6 %
Ghana2.4 %2.4 %2.4 %2.4 %
6.6% – 7.2%
Australia2.4 %2.4 %2.4 %2.4 %2.4 %
Peru2.4 %2.4 %2.4 %2.4 %2.8 %
Chile2.4 %2.4 %2.4 %2.4 %2.4 %
1    Changes in estimates are defined as changes in reserves and corresponding changes in life of mine as well as changes in laws and regulations governing environmental matters, closure cost estimates and discount rates. The decrease is mainly due to the increase in the discount rates used in the 2022 calculations.
2    South African, Ghanaian, Australian and Peruvian mining companies are required by law to undertake rehabilitation as part of their ongoing operations. These environmental rehabilitation costs are funded as follows:
Ghana – reclamation bonds underwritten by banks and restricted cash (refer to note 18);
South Africa – contributions into environmental trust funds (refer to note 18) and guarantees (refer to note 34);
Australia – mine rehabilitation fund levy and restricted cash; and
Peru – bank guarantees and restricted cash (refer to note 34).
Notes to the Consolidated Financial Statements continued
for the year ended 31 December 2022
Summary of Silicosis settlement costs
United States Dollar
20222021
25.2
Silicosis settlement costs1
Balance at the beginning of the year13.1 18.3 
Changes in estimates(2.2)(0.7)
Unwinding of provision recognised as finance expense1.0 1.1 
Payment(0.7)(4.4)
Translation(0.7)(1.2)
Balance at end of the year10.5 13.1 
Current portion of silicosis settlement costs(1.3)(0.6)
Non-current portion of silicosis settlement costs9.2 12.5 
1    The principal health risks associated with Gold Fields’ mining operations in South Africa arise from occupational exposure to silica dust, noise, heat and certain hazardous chemicals. The most significant occupational diseases affecting Gold Fields’ workforce include lung diseases (such as silicosis, tuberculosis, a combination of the two and chronic obstructive airways disease (“COAD”) as well as noise induced hearing loss (“NIHL”)).
A consolidated application was brought against several South African mining companies, including Gold Fields, for certification of a class action on behalf of current or former mineworkers (and their dependants) who have allegedly contracted silicosis and/or tuberculosis while working for one or more of the mining companies listed in the application.
This matter was previously disclosed as a contingent liability as the amount could not be estimated reliably. As a result of the ongoing work of the Gold Working Group (comprising African Rainbow Minerals, Anglo American SA, AngloGold Ashanti, Gold Fields, Harmony and Sibanye-Stillwater) (the “GWG Parties”) and engagements with affected stakeholders since 31 December 2016, Gold Fields was able to reliably estimate its share in the estimated cost in relation to the GWG Parties of a possible settlement of the class action claims and related costs during 2017. As a result, Gold Fields provided an amount of US$10.5 million (R178.9 million) (2021: US$13.1 million (R209.6 million)) for this obligation in the statement of financial position at 31 December 2022. The nominal amount of this provision is US$14.4 million (R244.7 million). Gold Fields believes that this remains a reasonable estimate of its share of the settlement of the class action claims and related costs.
The assumptions that were made in the determination of the provision include silicosis prevalence rates, estimated settlement per claimant, benefit take-up rates and disease progression rates. A discount rate of 9.22% (2021: 7.83%) was used, based on government bonds with similar terms to the anticipated settlements.
Refer to note 35 for further details.