Haffner Energy successfully renews its ISO 9001:2015 certification
Certified since 2016, Haffner Energy has just successfully renewed its ISO 9001:2015 certification following the audit carried out between 24 November and 1 December 2022 by the independent body "Bureau Veritas". This is the result of a major effort that involved all of Haffner Energy's process managers. "We are very satisfied to have successfully renewed our ISO 9001 certification in [...]