ACNR Holdings, Inc safety activity

Unplanned roof fall discovered reportable on 1 North Haulage at 23 block at approximately 8:45 pm on 08/23/2026. Fall primarily occurred over top of arches and steel sets that were previously installed through the area. Fall was approximately 60' long, 16' wide, and 25' high. Area was mined near June of 1989. No problems with equipment or compliance issues, training or PPE.

Employee was taking a shower when the water suddenly turned hotter, the employee moved away from the shower and slipped and fell. PPE was not a factor, mining systems was not a factor, compliance with rules and regulations was not a factor.

Injured was cutting piece of mine belt off of an Irwin car in 5 block St Leo (8 Main Line Belt) and when cutting through the belt the knife slipped and caused a laceration to their right upper leg, anterior side, that required 5 sutures to close. No problems with equipment or compliance issues, training or PPE.

While performing a belt move in St Leo Mains #3 entry 163-165 block the injured was carrying belt structure and felt pain in groin and lower stomach area. Was later diagnosed with a strained groin. No problem with equipment or compliance issues, training or PPE.

The mine received a Self-Insured Employer Decision on 08/21/2026 from a medical report dated 4/30/26. The report identifies a possible 10% permanent partial disability from occupational pneumoconiosis. Employee has been retired since 9/15/18

Employee was standing next to the twin boom bolter when a rock fell, hitting the rock deflector then landing on the employees foot. PPE was not a factor, mining systems was not a factor, compliance with rules and regulations was not a factor.

While checking sanders on the motor in the Miracle Run Rock Dust Chute employee was walking around the motor and struck their left knee on the coupler, causing a contusion. No problems with equipment or compliance issues, training or PPE.

Employee was spotting twin boom bolter while the bolter was being moved when a rock fell from the top, striking the employee in the neck and shoulder area. PPE was not a factor, mining systems was not a factor, compliance with rules and regulations was not a factor.

An unplanned roof fall occurred on 8/20/2026 at approx. 12:40pm. The falls measurements are undetermined. The fall occurred on Mainline 14 Track at 14-02 crosscut, track to neutral. The area was posted on all sides, dangered off, and will not be cleaned up.