ECL · 10-Q · 2026Q3 · Full report

Litigation and Legal Risk

ECOLAB INC. · 2026-10-29 · Importance 44 · Surprise 42 · In source text

Nalco Company LLC was named in litigation following the November 27, 2019 explosion and fire at TPC Group’s Port Neches, Texas butadiene plant; more than 5,000 plaintiffs asserted claims, which were consolidated for pretrial purposes in multidistrict litigation in Orange County, Texas. Nalco reached a settlement with a portion of the plaintiffs in July 2025 and an additional settlement in principle with substantially all remaining plaintiffs in July 2026. Ecolab says it intends to defend remaining claims, believes potential losses should be covered by insurance subject to deductibles, and does not expect resolution of the remaining claims to have a material adverse effect on its business, financial condition, or results of operations.

Key facts

• Nalco reached a settlement with a portion of TPC multidistrict-litigation plaintiffs in July 2025 and an additional settlement in principle with substantially all remaining plaintiffs in July 2026. source
• Nalco Company LLC, an Ecolab subsidiary, supplied process chemicals to TPC Group for its production processes; Nalco did not operate, manage, maintain, or control TPC's plant operations. source
• More than 5,000 plaintiffs, including the subrogation matter, asserted claims against Ecolab subsidiary Nalco in litigation arising from the 2019 TPC Group plant explosion; the cases were consolidated for pretrial purposes into multidistrict litigation. source
• Ecolab believes claims against Nalco in the TPC litigation are without merit, intends to vigorously defend remaining claims, and believes potential loss should be covered by insurance subject to deductibles. source
• Ecolab does not believe ultimate resolution of the remaining TPC claims will materially adversely affect its business, financial condition, or results of operations. source
• Ecolab said an adverse ruling, settlement, or unfavorable development in its legal matters could result in future charges that materially adversely affect results of operations or cash flows in the period recorded. source
• Ecolab was participating in environmental assessments and remediation at approximately an unspecified number of locations, the majority in the U.S., and had accrued environmental liabilities based on management's best estimate of future costs. source

Impact estimates