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SEC Edgar

HECLA MINING CO/DE/

SIC 1400 · Mining & Quarrying Of Nonmetallic Minerals (No Fuels)
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HECLA MINING CO/DE/

CIK:0000719413|SEC Filings

INDENTURES

EX-4.1
ex_405064.htm
2022-08-05T00:00:00Z
EX-4.7
ex_335292.htm
2022-02-23T00:00:00Z
EX-4.1
ex_299999.htm
2021-11-05T00:00:00Z
EX-4.6
ex_226538.htm
2021-02-18T00:00:00Z
EX-4.8
ex_226539.htm
2021-02-18T00:00:00Z
EX-4.4
ex_171052.htm
2020-02-10T00:00:00Z
EX-4.5A
ex_171053.htm
2020-02-10T00:00:00Z
EX-4.5B
ex_171054.htm
2020-02-10T00:00:00Z
EX-4.2F
ex_162633.htm
2019-11-07T00:00:00Z
EX-4.2E
ex_135094.htm
2019-02-22T00:00:00Z
EX-4.2(E)
ex4-2e.htm
2017-02-23T00:00:00Z
EX-4.2(D)
ex4-2d.htm
2016-02-23T00:00:00Z
EX-4.3
ex4-3.htm
2013-02-26T00:00:00Z
EX-4.1
d835979dex41.htm
2024-05-20T00:00:00Z
EX-4.1(A)
d776284dex41a.htm
2024-02-15T00:00:00Z
EX-4.1
d250602dex41.htm
2021-05-20T00:00:00Z
EX-4.1(B)
d119181dex41b.htm
2021-02-18T00:00:00Z
EX-4.1
d905435dex41.htm
2020-09-23T00:00:00Z
EX-4.1
d799555dex41.htm
2020-04-10T00:00:00Z
EX-4.1
d885387dex41.htm
2020-02-19T00:00:00Z