Hecla Mining boosts zinc reserves 8%, lead rises 5%

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Hecla Mining increased its zinc reserves and lead reserves across its various operations in 2019…

Trasteel Trading Holding SA – Via S. Balestra 10 | Palazzo TenTower, 6900 Lugano (CH)
CHE-436.569.943 Tel. +41 91 91 05 300

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