HINDZINC Hindustan Zinc Ltd Credit Rating Changes Announcement 2025 - Credit Rating Reaffirmed Hindustan Zinc Ltd announced that on June 3, 2025, CRISIL Ratings reaffirmed its AAA/Stable and A1+ ratings for the company's bank facilities and debt programmes..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Hindustan Zinc Ltd