City and County of Butte-Silver Bow, et al. v. 3M Company (F/K/A Minnesota Mining and Manufacturing Company); DuPont de Nemours, Inc.; The Chemours Company; The Chemours Company FC, LLC; Corteva, Inc.; Globe Manufacturing Company LLC; W.L. Gore & Associates, Inc.; Lion Group Inc.; Fire-Dex LLP; Morning Pride Manufacturing LLC; and Innotex Corp.

District Court, D. Montana·Decided May 28, 2026·No. 2:25-cv-00036·Unknown

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF MONTANA BUTTE DIVISION

CITY AND COUNTY OF BUTTE- SILVER BOW, et al., CV-25-36-BU-BMM

Plaintiffs,

v. ORDER ON MOTION FOR FEES, COSTS, AND A STAY OF 3M COMPANY (F/K/A PROCEEDINGS UNDER RULE 41(d) MINNESOTA MINING AND AND MOTION FOR SANCTIONS MANUFACTURING COMPANY); DUPONT DE NEMOURS, INC.; THE CHEMOURS COMPANY; THE CHEMOURS COMPANY FC, LLC; CORTEVA, INC.; GLOBE MANUFACTURING COMPANY LLC; W.L. GORE & ASSOCIATES, INC.; LION GROUP INC.; FIRE- DEX LLP; MORNING PRIDE MANUFACTURING LLC; and INNOTEX CORP,

Defendants.

INTRODUCTION Defendants Globe Manufacturing Company, LLC (“Globe”), Lion Group, Inc. (“Lion”), and W. L. Gore & Associates, Inc. (“Gore”) filed a motion for fees, costs, and a stay of proceedings under Federal Rule of Civil Procedure 41(d) on April

10, 2026. (Doc. 204.) Defendants 3M Company (f/k/a Minnesota Mining and Manufacturing Company) (“3M”), DuPont de Nemours, Inc., The Chemours Company, The Chemours Company FC, LLC, Corteva, Inc., and Lion filed a motion

for sanctions on May 7, 2026. (Doc. 237.) Plaintiffs the City of Stamford, Connecticut and Old Mystic, Connecticut (“Connecticut Purchaser Plaintiffs”), oppose the motions. (Doc. 235, Doc. 243.) The Court held a hearing on the matter on May 22, 2026. (Doc. 293.)

BACKGROUND Plaintiffs bring this nationwide class action against Defendants for the alleged sale, manufacture, and distribution of protective firefighter gear (“turnout gear”)

containing per- and polyfluoroalkyl substances (“PFAS”) to fire departments and fire responding agencies. (Doc. 1 ¶¶ 1-9; Doc. 234 ¶¶ 1-9.) Plaintiffs allege that PFAS, found in the firefighter turnout gear, are associated with serious health effects, including cancer. (Doc. 234 ¶¶ 4-7.) Plaintiffs contend that Defendants

concealed the known dangers of PFAS and failed to provide adequate safety warnings to the public and class members, despite having knowledge of the risks and harms of PFAS for decades. (Id. ¶¶ 10-12.) Plaintiffs originally brought claims in separate cases in the District of Montana and the District of Connecticut. (See Doc. 190; see Uniformed Pro. Fire

Fighters Ass’n v. 3M Co., No. 3:24-cv-01101 (D. Conn.) (“UPFFA”).) Connecticut Purchaser Plaintiffs filed the Connecticut action first, on June 25, 2024, and proceeded through the early stages of litigation including removal proceedings,

discovery discussions, and Rule 12(b)(2) motions. See Complaint, UPFFA, No. 3:24-cv-01101, (D. Conn. June 25, 2024), Doc. 1 (see generally the complete docket). Defendants also unsuccessfully tried to remove the Connecticut action to the South Carolina Multi-District Litigation (“MDL”) on PFAS in firefighting foam.

See Uniformed Pro. Fire Fighters Ass'n of Connecticut v. 3M Co., No. 3:24-CV- 1101 (AWT), 2024 WL 4471356, at *1 (D. Conn. Oct. 10, 2024); see also In re Aqueous Film-Forming Foams Products Liability Litigation, 2:18-mn-2873-RMG

(“AFFF”). The court and the MDL panel rejected the motion to transfer and a related motion to stay. Uniformed Pro. Fire Fighters Ass'n of Connecticut, 2024 WL 4471356, at *1; see also In re Aqueous Film-Forming Foams Prods. Liab. Litig., 765 F. Supp. 3d 1379, 1380 (U.S. Jud. Pan. Mult. Lit. 2024).

Plaintiffs filed the action in the District of Montana on April 3, 2025. (Doc. 1.) The action in the District of Montana began after the Connecticut action, yet it has progressed more quickly. For example, the Court already has addressed in their

entirety the first round of motions to dismiss. (See Doc. 159.) The parties also briefed one motion to appoint interim counsel. (See Doc. 88, Doc. 99, Doc. 102.) Montana Plaintiffs withdrew their motion to appoint interim counsel following a dispute with

Defendants and Connecticut Purchaser Plaintiffs. (See Doc. 114.) Montana Plaintiffs and Connecticut Purchaser Plaintiffs resolved their dispute and eventually agreed to proceed forward only in the District of Montana. (See Doc. 235.) Other

municipalities with similar claims also joined the litigation in the District of Montana. (See Doc. 190, Doc. 234.) Connecticut Purchaser Plaintiffs voluntarily dismissed their claims in Connecticut. (Doc. 243 at 6.) The personal injury case on behalf of Connecticut firefighters remains in the District of Connecticut. (Id.)

Defendants Globe Manufacturing Company, LLC (“Globe”), Lion Group, Inc. (“Lion”), and W. L. Gore & Associates, Inc. (“Gore”) filed a motion for fees, costs, and a stay of proceedings under Federal Rule of Civil Procedure 41(d) against

Connecticut Purchaser Plaintiffs on April 10, 2026. (Doc. 204.) Defendants 3M Company (f/k/a Minnesota Mining and Manufacturing Company) (“3M”), DuPont de Nemours, Inc., The Chemours Company, The Chemours Company FC, LLC, Corteva, Inc., and Lion filed a motion for sanctions against Connecticut Purchaser

Plaintiffs on May 7, 2026. (Doc. 237.) Defendants 3M, Chemours, Corteva, and DuPont note in their motion for sanctions that they also join the motion for Rule 41(d) costs. (Doc. 238 at 27, n.6.) Connecticut Purchaser Plaintiffs oppose the

motions. (Doc. 235, Doc. 243.) The Court will address both motions in this order. LEGAL STANDARD “Rule 41(d) allows a court to award ‘costs’ incurred in litigation to a party if

the plaintiff dismissed that litigation and then filed another suit based on the same claims, against the same defendant.” Moskowitz v. Am. Sav. Bank, F.S.B., 37 F.4th 538, 542–43 (9th Cir. 2022). The court may stay the proceedings until the plaintiff

satisfies the award of costs. Fed. R. Civ. P. 41(d)(2). “The language of Rule 41(d) clearly indicates that it conveys ‘broad discretion’ on federal courts to order stays and payment of costs, and that neither is mandatory.” Dammeier v. Home Depot U.S.A., Inc., No. 16-5481 RJB, 2016 WL 4945305, at *2 (W.D. Wash. Sept. 16,

2016) (quoting Esquivel v. Arau, 913 F. Supp. 1382, 1386 (C.D. Cal. 1996)). The rule is “intended to serve as a deterrent to forum shopping and vexatious litigation.” Dammeier, 2016 WL 4945305, at *2 (quoting Esquivel, 913 F. Supp. at 1386

(internal quotation and citation omitted)). A court’s “inherent powers [to assess sanctions] must be exercised with restraint and discretion.” Chambers v. NASCO, Inc., 501 U.S 32, 44 (1991). This inherent power is “governed not by rule or statute but by the control necessarily

vested in courts to manage their own affairs so as to achieve the orderly and expeditious disposition of cases.” Id. at 43 (quoting Link v. Wabash R.R. Co., 370 U.S. 626, 630-31 (1962)). A court may assess attorney’s fees as a sanction “when a

party has acted in bad faith, vexatiously, wantonly, or for oppressive reasons, delaying or disrupting litigation, or has taken actions in the litigation for an improper purpose.” Fink v. Gomez, 239 F.3d 989, 992 (9th Cir. 2001) (citing Chambers, 501

U.S. at 45-46 & n.10); see also Roadway Express, Inc. v. Piper, 447 U.S. 752, 766 (1980). A court must make a specific finding that a party or lawyer acted in bad faith,

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City and County of Butte-Silver Bow, et al. v. 3M Company (F/K/A Minnesota Mining and Manufacturing Company); DuPont de Nemours, Inc.; The Chemours Company; The Chemours Company FC, LLC; Corteva, Inc.; Globe Manufacturing Company LLC; W.L. Gore & Associates, Inc.; Lion Group Inc.; Fire-Dex LLP; Morning Pride Manufacturing LLC; and Innotex Corp., (D. Mont. 2026).

City and County of Butte-Silver Bow, et al. v. 3M Company (F/K/A Minnesota Mining and Manufacturing Company); DuPont de Nemours, Inc.; The Chemours Company; The Chemours Company FC, LLC; Corteva, Inc.; Globe Manufacturing Company LLC; W.L. Gore & Associates, Inc.; Lion Group Inc.; Fire-Dex LLP; Morning Pride Manufacturing LLC; and Innotex Corp. (City and County of Butte-Silver Bow, et al. v. 3M Company (F/K/A Minnesota Mining and Manufacturing Company); DuPont de Nemours, Inc.; The Chemours Company; The Chemours Company FC, LLC; Corteva, Inc.; Globe Manufacturing Company LLC; W.L. Gore & Associates, Inc.; Lion Group Inc.; Fire-Dex LLP; Morning Pride Manufacturing LLC; and Innotex Corp.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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