Letters Open for Business

With reference to your article on zinc ("Outshining Other Major Metals") in the November issue, I wish to inform you that the Black Angel mine is not closed. It is operated by Boliden, the Swedish mining company, which acquired it...

By continuing to browse you agree to our use of cookies. To learn more, click more information

Dear user, please be aware that we use cookies to help users navigate our website content and to help us understand how we can improve the user experience. If you have ideas for how we can improve our services, we’d love to hear from you. Click here to email us. By continuing to browse you agree to our use of cookies. Please see our Privacy & Cookie Usage Policy to learn more.

Close