Amendment, dated January 26, 2024, to Combat Arms Settlement Agreement dated August 29, 2023, by and between (1) 3M Company and Aearo Technologies, LLC; and (2) the named Plaintiffs Leadership In re Combat Arms Earplug Products Liability Litigation, MDL No. 2885, U.S.D.C. for the Northern District of Florida; and (3) the named Plaintiffs Leadership in the Minnesota coordinated state court action pending in the 4th Judicial District, County of Hennepin, Minnesota, File No. 27-CV-19916

This Amendment (“Amendment”) to the Master Settlement Agreement dated August 29, 2023 (“MSA I”) between: (1) 3M Company (“3M”) and Aearo Technologies LLC, an acquired subsidiary of 3M (“Aearo”) (collectively, along with 3M Occupational Safety, Aearo Holding LLC, Aearo Intermediate LLC, Aearo LLC, and Aearo Technologies LLC, “Defendants”); and (2) the undersigned Plaintiffs’ Leadership in In re Combat Arms Earplug Products Liability Litigation, MDL No. 2885, U.S.D.C. for the Northern District of Florida (“MDL Court”); and (3) the undersigned Plaintiffs’ Leadership in the Minnesota coordinated state court action pending in the 4th Judicial District, County of Hennepin, Minnesota, File No. 27-CV-19916 (“MN Court”), collectively, the “Negotiating Plaintiffs’ Counsel” (“NPC”) (Defendants and the NPC are each a “Party,” and, together with the NPC, are the “Parties”), is entered into as of January 26, 2024.

WHEREAS, MSA I provided Defendants with the sole discretion to substitute cash for each equity tranche payment. MSA § 11.12.

WHEREAS, the Parties have conferred and now wish to modify MSA I to confirm 3M’s irrevocable election to pay cash for all four stock tranches pursuant to the payment triggers in the MSA including the modifications reflected herein.

NOW, THEREFORE, in consideration of the mutual agreements and covenants set forth below and other good and valuable consideration, receipt of which is hereby acknowledged, the Parties hereby agree as follows:

The Parties hereby amend the MSA to reflect that 3M has made the irrevocable election to substitute cash for the equity tranches set forth in MSA Section 11.4.

1.The Settlement Administrator shall calculate the Participation Level within five days of the Final Registration Date.

2.The NPC and Defendants shall have five days from the issuance of the Participation Level by the Settlement Administrator (even if issued more than five days after the Final Registration Date) to challenge the Settlement Administrator’s calculation of the Participation Level.

3.Within five days of such challenge, any Party opposing such challenge may submit a written response.

IN WITNESS WHEREOF, the Parties have executed this Amendment as of January 26, 2024.