US: Owens Corning celebrated its inclusion on the Sustainability World Index for its 14th consecutive year on 14 December 2023. Companies’ S&P Global Corporate Sustainability Assessment (CSA) contributed towards their assessment for the index. Owens Corning has a score of 85.

Chair and chief executive officer Brian Chambers said "Our industry-leading score is a testament to Owens Corning's unwavering commitment to sustainability and our progress toward achieving our 2030 sustainability goals. We remain dedicated to providing sustainable solutions to our customers and making a positive impact on the world."

UK: France-based waterproofing and insulation group Soprema has agreed to acquire a 75% stake in Celotex. Dow Jones Institutional News has reported that Celotex is presently a subsidiary of Soprema’s fellow France-based conglomerate Saint-Gobain. After completion of the deal in early 2024, Saint-Gobain says that it will retain a 25% stake in Celotex.

Celotex controls the Ipswich polyisocyanurate (PIR) insulation plant in Suffolk.

US: Owens Corning commenced construction of its planned US$60m Russellville extruded polystyrene (XPS) insulation plant in Arkansas. When commissioned in 2025, the plant will employ 50 people and produce Owens Corning’s Foamular NGX XPS insulation. Local press has reported that the move represents the company’s third expansion in Arkansas since the start of 2022. It has been present in the state since 1985.

Owens Corning vice president and general manager, foam insulation, Rodney Wideman said "This new plant and today's groundbreaking ceremony represents commitment to our customers' growth and the Russellville community.”

India: France-based Saint-Gobain has acquired waterproofing systems producer Menkol Industries. Menkol Industries operates a high-density polyethylene (HDPE) products plant in the Kinfra Industrial And Textile Park in Kanjikkode, Kerala.