Johns Manville Receives ISO 14001 Certification in Slovakia (EU)

Johns Manville (JM), a market-leading manufacturer of glass fiber products and Berkshire Hathaway company, announced today its plant in Slovakia received ISO 14001 certification for established environmental principles and processes.

The certification is granted to companies that have demonstrated excellent manufacturing practices in regard to sustainability measures and best environmental practices.

“The employees at the Trnava plant in Slovakia were instrumental in JM’s ability to achieve this certification,” said Brian Sapp, Global Fibers Business Director for JM Engineered Products.

The JM plant in Trnava (Slovakia), which opened in 1967, has demonstrated operational excellence through the years. Employees there are proud of the ISO 14001 certification and are committed to continuous improvement.

"This accreditation highlights JM’s commitment to quality and best industry practices for our customers,” Sapp said.

About ISO

ISO is an independent, non-governmental international organization with a membership of 162 national standards bodies. Through its members, it brings together experts to share knowledge and develop voluntary, consensus-based, market relevant International Standards that support innovation and provide solutions to global challenges. Additional information can be found at

About Johns Manville

Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors and wind energy. In business since 1858, the Denver-based company has annual sales of approximately $2.6 billion and holds leadership positions in all of the key markets that it serves. JM employs approximately 7,000 people and operates 44 manufacturing facilities in North America, Europe and China. Additional information can be found at

Philippe Bekaert, Johns Manville +32 479 980 677