US mining companies with the most imminent-danger orders

Heidelberg Materials AG has accumulated more Section 107(a) imminent-danger withdrawal orders across its mines than any other controlling entity in MSHA records, with 46 on file.

US mining controllers ranked by the number of Section 107(a) imminent-danger withdrawal orders MSHA has issued across all their mines. Click a company for its full record.

A Section 107(a) order removes miners from an area when an MSHA inspector finds an imminent danger; each is lifted once the condition is corrected, so this counts orders issued over time, not orders now in effect.

Prefer individual mines? mines ranked by imminent-danger orders. Looking at violations instead? See operators ranked by MSHA violations.