Company: FEAV
Filing Date: 2025-03-27
Form Type: 424B3
Source: 0001193125-25-065503
Chunk: 6

Company: 5E Advanced Materials, Inc.
Filing Date: 2025-03-27
Form: 424B3
Chunk 6
---
Inferred Mineral Resources” under the SEC Mining Disclosure Rules, investors should not assume that any part or all of the mineral deposits in these categories will be converted into a higher category of mineral resources or into mineral reserves. Investors are also cautioned not to assume that any measured mineral resources, indicated mineral resources, or inferred mineral resources are guarantees of actual resource amounts or that such amounts will be economically or legally mineable. The following terms, as defined in Regulation S-K1300, apply within this prospectus:

| Measured Mineral Resource                     
 (“Measured” or “Measured Mineral Resource”)   |     | is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling. The level of geological certainty associated with a measured mineral resource is            
 sufficient to allow a qualified person to apply modifying factors in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. Because a measured mineral resource has a higher level of 
 confidence than the level of confidence of either an indicated mineral resource or an inferred mineral resource, a measured mineral resource may be converted to a proven mineral reserve or to a probable mineral reserve.                       |
| Indicated Mineral Resource                    
 (“Indicated” or “Indicated Mineral Resource”) |     | is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling. The level of geological certainty associated with an indicated mineral resource is            
 sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and                                                                                                                               |

4

|                                             |     | evaluation of the economic viability of the deposit. Because an indicated mineral resource has a lower level of confidence than the level of confidence of a measured mineral resource, an indicated mineral resource may only be                   
 converted to a probable mineral reserve.                                                                                                                                                                                                            |
| Inferred Mineral Resource                   
 (“Inferred” or “Inferred Mineral Resource”) |     | is that part of a mineral resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. The level of geological uncertainty associated with an inferred mineral resource is              
 too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability. Because an inferred mineral resource has the lowest level of geological 
 confidence of all mineral resources, which prevents the application of the modifying factors in a manner useful for evaluation of economic viability, an inferred mineral resource may not be considered when assessing the economic viability of a