XML 98 R71.htm IDEA: XBRL DOCUMENT
v3.25.1

MATERIAL ACCOUNTING POLICIES (Schedule related to property, plant and equipment) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2024
Land |
Mineral Properties, and Property, Plant and Equipment |
Measurement bases, property, plant and equipment | Not depreciated
Buildings, others |
Mineral Properties, and Property, Plant and Equipment |
Depreciation method, property, plant and equipment | Straight line
Buildings, others | Bottom of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 6 years
Buildings, others | Top of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 10 years
Mineral properties |
Mineral Properties, and Property, Plant and Equipment |
Measurement bases, property, plant and equipment | Units of production
Depreciation method, property, plant and equipment | Declining balance
Buildings located at mine |
Mineral Properties, and Property, Plant and Equipment |
Measurement bases, property, plant and equipment | Units of production
Depreciation method, property, plant and equipment | Declining balance
Leasehold improvements |
Mineral Properties, and Property, Plant and Equipment |
Depreciation method, property, plant and equipment | Straight line
Leasehold improvements | Bottom of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 4 years
Leasehold improvements | Top of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 8 years
Processing plant |
Mineral Properties, and Property, Plant and Equipment |
Measurement bases, property, plant and equipment | Units of production
Depreciation method, property, plant and equipment | Declining balance
Machinery and equipment |
Mineral Properties, and Property, Plant and Equipment |
Depreciation method, property, plant and equipment | Straight line
Machinery and equipment | Bottom of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 3 years
Machinery and equipment | Top of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 12 years
Furniture and other equipment |
Mineral Properties, and Property, Plant and Equipment |
Depreciation method, property, plant and equipment | Straight line
Furniture and other equipment | Bottom of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 2 years
Furniture and other equipment | Top of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 12 years
Transport units |
Mineral Properties, and Property, Plant and Equipment |
Depreciation method, property, plant and equipment | Straight line
Transport units | Bottom of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 4 years
Transport units | Top of range |
Mineral Properties, and Property, Plant and Equipment |
Useful life measured as period of time, property, plant and equipment | 5 years
Capital work in progress |
Mineral Properties, and Property, Plant and Equipment |
Measurement bases, property, plant and equipment | Not depreciated

X
- Definition The depreciation method used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DepreciationMethodPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The measurement bases used for determining the gross carrying amount for a class of property, plant and equipment. [Refer: Gross carrying amount [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_MeasurementBasesPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MiningPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_BuildingsLocatedAtMineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LeaseholdImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_ProcessingPlantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_MachineryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_FurnitureAndOtherEquipmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_VehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_ConstructionInProgressMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |