Restricted cash includes cash and cash equivalents and money market funds as collateral for various bonds posted in favor of applicable state regulatory agencies in Arizona, Texas and Wyoming, and for estimated reclamation costs associated with our plants, processing facilities and various projects.  Restricted cash will be released upon completion of reclamation of a mineral property or restructuring of a surety and collateral arrangement.

Cash, cash equivalents and restricted cash are included in the following accounts:

Financial instruments that potentially subject our Company to concentrations of credit risk consist of cash and cash equivalents and restricted cash.  These assets include Canadian dollar and U.S. dollar denominated certificates of deposit, money market accounts and demand deposits.  These instruments are maintained at financial institutions in Canada and the U.S.  The maximum credit risk of these assets is the carrying amount less the amount covered by the Canada Deposit Insurance Corporation, the Securities Investor Protection Corporation or the U.S. Federal Deposit Insurance Corporation, should the financial institutions with which these amounts are invested be rendered insolvent.  As of  April 30, 2026, approximately $464.96 million of our cash and cash equivalents is held in two financial institutions, which are among the largest banks in the U.S. and Canada and subject to concentration risk. The Company does not consider any of its financial assets to be impaired as of  April 30, 2026.