BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS	BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS Basis of Presentation The accompanying condensed consolidated financial statements of Perimeter Solutions, Inc. and its subsidiaries (collectively, the “Company”) are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments of a normal and recurring nature considered necessary for a fair presentation have been included in the accompanying condensed consolidated financial statements. The results of operations for the interim period are not necessarily indicative of the results that will be realized for the entire fiscal year. These condensed consolidated financial statements should be read in conjunction with the Company’s audited financial statements and accompanying notes thereto included in the Company’s 2025 Annual Report filed with the SEC on February 26, 2026. Business Operations Perimeter Solutions, Inc. (the “Company”) is a leading provider of industrial products and services that support critical and complex customer missions across a range of niche applications. The Company’s current operations span firefighting products, lubricant additives, electronic components and highly engineered machinery for the medical device industry. The Company conducts its operations globally, with approximately 76% of the Company’s 2025 annual revenues derived in the United States, approximately 10% in Europe and approximately 7% in Canada, with the remaining approximately 7% spread across various other countries. The Company’s business is organized and managed in two reporting segments: Fire Safety and Specialty Products. The Fire Safety segment is a formulator and manufacturer of fire management products that help the Company’s customers combat various types of fires, including wildland, industrial, structural, flammable liquids and other types of fires. The Fire Safety segment also offers specialized equipment and services, typically in conjunction with the Company’s fire management products to support the Company’s customers’ firefighting operations. The Company’s specialized equipment includes airbase retardant storage, mixing, and delivery equipment; mobile retardant bases; retardant ground application units; mobile foam equipment; and equipment that the Company custom designs and manufactures to meet specific customer needs. The Specialty Products segment develops, produces and markets products for non-fire safety markets. The Specialty Products segment includes Phosphorus Derivatives, Inc., which produces Phosphorus Pentasulfide (“P2S5”) based lubricant additives. P2S5 is also used in pesticide and mining chemicals applications, and emerging electric battery technologies. The Specialty Products segment also includes Intelligent Manufacturing Solutions (“IMS”), which is a manufacturer of electronic or electro-mechanical components of larger solutions. IMS has a flexible, vertically integrated production facility that allows it to acquire and produce a variety of product lines across a range of end markets, including communications infrastructure, energy infrastructure, defense systems, and industrial systems, with a substantial focus on aftermarket repair and replacement. The Specialty Products segment also includes Medical Manufacturing Technologies, LLC (“MMT”), which provides highly engineered machinery and associated aftermarket consumables, parts, and services to support the production of complex medical devices as well as select highly engineered industrial and aerospace and defense use cases. MMT’s capabilities include original equipment manufacturing, including application specific equipment and automation solutions for medical devices such as complex catheters, guidewires and microcoils, as well as aftermarket parts, services, and consumables.

The accompanying condensed consolidated financial statements of Perimeter Solutions, Inc. and its subsidiaries (collectively, the “Company”) are unaudited and have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and disclosures required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments of a normal and recurring nature considered necessary for a fair presentation have been included in the accompanying condensed consolidated financial statements. The results of operations for the interim period are not necessarily indicative of the results that will be realized for the entire fiscal year. These condensed consolidated financial statements should be read in conjunction with the Company’s audited financial statements and accompanying notes thereto included in the Company’s 2025 Annual Report filed with the SEC on February 26, 2026.

Perimeter Solutions, Inc. (the “Company”) is a leading provider of industrial products and services that support critical and complex customer missions across a range of niche applications. The Company’s current operations span firefighting products, lubricant additives, electronic components and highly engineered machinery for the medical device industry.

The Fire Safety segment is a formulator and manufacturer of fire management products that help the Company’s customers combat various types of fires, including wildland, industrial, structural, flammable liquids and other types of fires. The Fire Safety segment also offers specialized equipment and services, typically in conjunction with the Company’s fire management products to support the Company’s customers’ firefighting operations. The Company’s specialized equipment includes airbase retardant storage, mixing, and delivery equipment; mobile retardant bases; retardant ground application units; mobile foam equipment; and equipment that the Company custom designs and manufactures to meet specific customer needs.

The Specialty Products segment develops, produces and markets products for non-fire safety markets. The Specialty Products segment includes Phosphorus Derivatives, Inc., which produces Phosphorus Pentasulfide (“P2S5”) based lubricant additives. P2S5 is also used in pesticide and mining chemicals applications, and emerging electric battery technologies. The Specialty Products segment also includes Intelligent Manufacturing Solutions (“IMS”), which is a manufacturer of electronic or electro-mechanical components of larger solutions. IMS has a flexible, vertically integrated production facility that allows it to acquire and produce a variety of product lines across a range of end markets, including communications infrastructure, energy infrastructure, defense systems, and industrial systems, with a substantial focus on aftermarket repair and replacement. The Specialty Products segment also includes Medical Manufacturing Technologies, LLC (“MMT”), which provides highly engineered machinery and associated aftermarket consumables, parts, and services to support the production of complex medical devices as well as select highly engineered industrial and aerospace and defense use cases. MMT’s capabilities include original equipment manufacturing, including application specific equipment and automation solutions for medical devices such as complex catheters, guidewires and microcoils, as well as aftermarket parts, services, and consumables.