17 C.F.R. § 229.1304
(a)
(1) A registrant must disclose the information specified in this section for each property that is material to its business or financial condition. When determining the materiality of a property relative to its business or financial condition, a registrant must apply the standards and other considerations specified in § 229.1301(c) to each individual property that it:
(2) A registrant that has a royalty, streaming or other similar right, but which lacks access to any of the information specified in this section about the underlying property or properties, may omit such information, provided that the registrant:
(ii) Explains that it does not have access to the required information because:
(b) Disclose the following information for each material property specified in paragraph (a) of this section:
(1) A brief description of the property including:
(2) The following information, as relevant to the particular property:
(c) When providing the disclosure required by paragraph (b) of this section:
(d)
(1) If mineral resources or reserves have been determined, the registrant must provide a summary of all mineral resources or reserves as of the end of the most recently completed fiscal year, which, for each property, discloses in tabular form, as provided in Table 1 to paragraph (d)(1) of this section for each class of mineral resources (measured, indicated, and inferred), together with total measured and indicated mineral resources, the estimated tonnages and grades (or quality, where appropriate), and as provided in Table 2 to paragraph (d)(1) of this section for each class of mineral reserves (proven and probable), together with total mineral reserves, the estimated tonnages, grades (or quality, where appropriate), cut-off grades, and metallurgical recovery, based on a specific point of reference selected by a qualified person pursuant to § 229.601(b)(96). The registrant must disclose the selected point of reference for each of Tables 1 and 2 to paragraph (d)(1) of this section.
| Resources | Cut-off grades | Metallurgical recovery | ||
|---|---|---|---|---|
| Amount | Grades/qualities | |||
| Measured mineral resources | ||||
| Indicated mineral resources | ||||
| Measured + Indicated mineral resources | ||||
| Inferred mineral resources | ||||
| 1 The registrant must use a reasonable and justifiable price, which it must disclose, together with the time frame and point of reference used, when estimating mineral resources for this Table 1. |
| Amount | Grades/qualities | Cut-off grades | Metallurgical recovery | |
|---|---|---|---|---|
| Proven mineral reserves | ||||
| Probable mineral reserves | ||||
| Total mineral reserves | ||||
| 1 The registrant must use a reasonable and justifiable price for each commodity, which it must disclose, together with the time frame and point of reference used, when estimating mineral reserves for this Table 2. |
Instruction 1 to paragraph (d)(1): The registrant may modify the tabular formats in Tables 1 and 2 to paragraph (d)(1) of this section for ease of presentation, to add information, or to combine two or more required tables. When combining tables, the registrant should not report mineral resources and reserves in the same table.
(e) Compare the property's mineral resources and reserves as of the end of the last fiscal year with the mineral resources and reserves as of the end of the preceding fiscal year, and explain any material change between the two. The comparison, which may be in either narrative or tabular format, must disclose information concerning:
(f)
(g)
(6)