What changed in this filing

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Item 4. Controls and Procedures

2021-06-14 compared with 2021-03-16 · 19 added, 19 removed, 1 unchanged (97% of the section changed)

and Procedures

of Disclosure Controls and Procedures .

Our Chief Executive Officer and Chief Financial Officer have evaluated

the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange

Act of 1934, as amended), as of the end of the period covered by this Quarterly Report on Form 10-Q.

Based on this evaluation,

our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective

as of January 31, 2021.

in Internal Control over Financial Reporting .

There were no changes in our internal control over financial

reporting during the quarter ended January 31, 2021 that have materially affected, or are reasonably likely to materially affect,

our internal control over financial reporting.

Controls and Procedures

Evaluation of Disclosure Controls and Procedures .

Chief Executive Officer and Chief Financial Officer have evaluated the effectiveness of our disclosure controls and procedures (as defined

in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended), as of the end of the period covered by this Quarterly

Report on Form 10-Q.

Based on this evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure

controls and procedures were effective as of April 30, 2021.

Changes in Internal Control over Financial

There were no changes in our internal control over financial reporting during the quarter ended April

30, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

OTHER INFORMATION

proceedings in which we are involved are more fully described in Note 8 to the Consolidated Financial Statements included in Item 1

to Part I of this Quarterly Report on Form 10-Q.

are no other material changes from the risk factors previously disclosed in Item 1A to Part I of our Annual Report on Form 10-K

for the fiscal year ended July 31, 2020.

Sales of Equity Securities and Use of Proceeds

Upon Senior Securities

Safety Disclosures

Legal Proceedings

Legal proceedings in which we are involved are

more fully described in Note 8 to the Consolidated Financial Statements included in Item 1 to Part I of this Quarterly Report on

There are no other material changes from the risk

factors previously disclosed in Item 1A to Part I of our Annual Report on Form 10-K for the fiscal year ended July 31, 2020.

Unregistered Sales of Equity Securities and Use of Proceeds

Defaults Upon Senior Securities

Mine Safety Disclosures

Not applicable

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-Q

Item 4. Controls and Procedures