Paris, September 1st 2016.

Trescal, the international specialist in calibration services, announces
the acquisitionof Precision Metrology Inc., a leading calibration services
provider based in Wisconsin and Florida, US.

This transaction consolidates Trescal’s geographical footprint and technical coverage in the United States and has been
completed with the support of Ardian, its majority shareholder.

Founded in 1980 and headquartered in Milwaukee,Precision Metrology is A2LA-accreditedand has strong technical skills in dimensional, DC/Low Frequency, thermodynamics, and mechanical/dimensional repair.
With a turnover of around $11 million, the company employs around 90
people and is mostly active in the Utilities, Aeronautics and Life Science sectors.

Precision Metrology’s founder, Carol Shipley, will remain in her
current position to continue leading the growth of the business
in the coming years.

This acquisition will bring Trescal’s portfolio in the US to 15 calibration laboratories, with over 400 employees. It is the 16th acquisition since Ardian became its majority shareholder in July 2013.