Company: SQM
Filing Date: 2025-04-24
Form Type: 20-F
Source: 0000909037-25-000020
Chunk: 130

Company: CHEMICAL & MINING CO OF CHILE INC
Filing Date: 2025-04-24
Form: 20-F
Item: Item 4A
Chunk 130
---
 Amount                  ResourcesGrades                                                                                         Cut-off                                                           Metallurgical recovery
                                                                                                                                                                                                                        grades                                                                                 
                                                  TotalMt                  SQM AttributableMt                           Li2O %                Spodumene Domain Li2O %        Mixed Domain Li2O %        Petalite Domain Li2O %                  Spodumene Domain %       Mixed Domain %       Petalite Domain %
Measured Mineral Resources                           34.1                                17.1                             1.30                                   0.50                       0.50                          0.78                                  75                   55                      35
Indicated Mineral Resources                          58.3                                29.1                             1.34                                   0.50                       0.50                          0.78                                  75                   55                      35
Measured + Indicated Mineral Resources               92.4                                46.2                             1.32                                   0.50                       0.50                          0.78                                  75                   55                      35
Inferred Mineral Resources                           33.4                                16.7                             1.17                                   0.50                       0.50                          0.78                                  75                   55                      35
________________________________________________
(1)The SQM attributable portion of Mineral Resources is 50%. Mineral Resources are reported exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. Resources have been reported as in-situ (hard rock within an optimized pit shell) and below the pit surface, effective 27th December 2024. Resources have been categorized 
77

subject to the opinion of a QP based on the quality and quantity of informing data for the estimate and consistency of geological units and grade distribution. Resources that are contained within the Mineral Reserve pit design may be excluded from Reserves due to an Inferred classification or where the mineralogical domain does not meet the criteria for plant recovery. These resources are disclosed separately from the Resources contained within the Mineral Reserve. There is reasonable expectation that Inferred Resources within the Mineral Reserve pit design may be converted to higher confidence materials with additional drilling and exploration effort. There is reasonable expectation that Mineral Resources that do not meet the mineralogical criteria for Mineral Reserves can be recovered using alternative processing methods. Mineral Resource tonnage and average contained grade were rounded to reflect the accuracy of the estimate and figures may not match, due to rounding. The disclosed Resource corresponds only to Resources attributable to SQM