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Form SD - Specialized disclosure report:
SEC Accession No. 0000912562-21-000021
Filing Date
2021-05-28
Accepted
2021-05-28 12:12:20
Documents
2

Document Format Files

Seq Description Document Type Size
1 SD a2020conflictminerals.htm SD 17180
2 EX-1.01 ex101_123120conflictminera.htm EX-1.01 22779
  Complete submission text file 0000912562-21-000021.txt   41242
Mailing Address GATEWAY EXECUTIVE PARK 3556 LAKE SHORE ROAD PO BOX 2028 BUFFALO NY 14219-0228
Business Address 3556 LAKE SHORE ROAD P O BOX 2028 BUFFALO NY 14219-0228 7168266500
GIBRALTAR INDUSTRIES, INC. (Filer) CIK: 0000912562 (see all company filings)

IRS No.: 161445150 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SD | Act: 34 | File No.: 000-22462 | Film No.: 21978043
SIC: 3310 Steel Works, Blast Furnaces & Rolling & Finishing Mills