Boardroom Alpha
10-K primary document
MTZ · Annual Report (Form 10-K) · Filed February 26, 2026

Mastec Inc10-K exhibit

mtz12312510-kex951.htm
Document


Exhibit 95.1

MINE SAFETY DISCLOSURES

We operate aggregate mines that are subject to regulation by the federal Mine Safety and Health Administration (“MSHA”) under the Federal Mine Safety and Health Act of 1977, 30 U.S.C. § 801 et seq. (the “Mine Act”). Set forth below is the required information regarding certain mining safety and health matters for the year ended December 31, 2025. Citations and orders may be contested and appealed, and in that process, may be reduced in severity and amount, and are sometimes dismissed. The table below includes references to specific sections of the Mine Act.
The information in the table below is presented by mine, consistent with the manner in which we maintain safety and compliance information about our mining operations.
Mine Name / ID
Section
104 Citations(a)
Section
104(b) Orders(b)
Section
104(d) Citations and Orders(c)
Section
110(b)(2) Violations(d)
Section
107(a) Orders(e)
Proposed
Assessments(f)
Fatalities(g)
Pending Legal Action(h)
Arizona / VTW (1)
$— 
FNF Crushing 1 / 02030912$1,074 
FNF Crushing 2 / 0202622$— 
FNF Crushing 3 / 0202774$— 
FNF Crushing 4 / 02030369$5,934 
FNF Crushing 5 / 2902226$— 
FNF Crushing 6 / 0202589$441 
FNF Crushing 7 / 0203079$— 
FNF Crushing 8 / 020303541$5,353 1
Topaz Mine 26-02440$— 
Mesquite Wash Plant 2602774$147 
Oklahoma / B7441 (1)
6$1,339 1
Tennessee / B7441 (1)
$— 
Texas / B7441 (1)
6$3,869 
Utah / B7441 (1)
$— 
Texas / C4778 (1)
$— 
Wisconsin / A6370 (1)
3$1,126 
Alabama / 1KJ1$549 
Alaska / E757 (1)
$— 
Arizona / E7572$2,087 
Texas / E757 (1)$— 
Total331$21,919 11
(1)     Denotes where we are working as an "independent contractor" at another operator's mine.
(a)    The total number of violations of mandatory health or safety standards that could significantly and substantially contribute to the cause and effect of a coal or other mine safety or health hazard under Section 104 of the Mine Act for which the operator received a citation from the MSHA.
(b)    The total number of orders issued under Section 104(b) of the Mine Act.
(c)    The total number of citations and orders for unwarrantable failure of the mine operator to comply with mandatory health or safety standards under Section 104(d) of the Mine Act.
(d)    The total number of flagrant violations under Section 110(b)(2) of the Mine Act.
(e)    The total number of imminent danger orders issued under Section 107(a) of the Mine Act.
(f)    The total dollar value of proposed assessments from the MSHA under the Mine Act.
(g)    The total number of mining-related fatalities.
(h)    Any pending legal action before the Federal Mine Safety and Health Review Commission involving the applicable mine(s).
During the year ended December 31, 2025, our aggregate mines did not receive any written notices of a pattern of violations of mandatory health or safety standards, or of the potential to have such a pattern of violations, that are of such nature as could have significantly and substantially contributed to the cause and effect of coal or other mine health or safety hazards under Section 104(e) of the Mine Act.

Disclaimer

The opinions and information contained herein have been obtained or derived from sources believed to be reliable, but Boardroom Alpha cannot guarantee its accuracy and completeness, and that of the opinions based thereon.

This report contains opinions and is provided for informational purposes only – it does not constitute investment, legal or tax advice. You should not rely solely upon the research herein for purposes of transacting securities or other investments, and you are encouraged to conduct your own research and due diligence, and to seek the advice of a qualified securities professional before you make any investment.

None of the information contained in this report constitutes, or is intended to constitute a recommendation by Boardroom Alpha of any particular security or trading strategy or a determination by Boardroom Alpha that any security or trading strategy is suitable for any specific person. To the extent any of the information contained herein may be deemed to be investment advice, such information is impersonal and not tailored to the investment needs of any specific person.

No representation or warranty, expressed or implied, is made on behalf of Boardroom Alpha as to the accuracy or completeness of the information contained herein. Boardroom Alpha does not accept any liability for any direct, indirect or consequential loss or damage suffered by any person as a result of relying on all or any part of this research and any liability is expressly disclaimed.

Full disclaimer