Environnement S.A Group to acquire TDL Sensors Ltd

September 1st, 2016

Environnement S.A Group, leading European supplier of environmental monitoring equipment, and the company

TDL Sensors Ltd, high technology innovative company supplying laser based monitors for industrial applications, are

proud to announce the acquisition of TDL Sensors Ltd by Environnement S.A Group. It allows the enlarged group to

offer worldwide, the most advanced and wide range of solutions to match present and future challenges in respect

of process or regulatory environmental monitoring requirements for industries.

This alliance will immediately contribute to the market release of a new range of innovative laser based emission

monitors such as ultra‐low detection of HCl emissions, and accelerate both Research and Development in joint

projects.

Environnement S.A Group commitment to the development of advanced instrumentation for global market is

reinforced with the acquisition of TDL Ltd. TDL Ltd will retain its current management team and employees and plans

to recruit additional product development professionals.

The management of TDL Ltd and the broader Environnement S.A Group (including its existing UK subsidiary PCME

Ltd) will focus efforts to the anticipated strong growth provided by synergies within the Group. It will benefit their

respective customers, partners and employees in terms of expertise, quality and services.

François Gourdon, President and founder of Environnement S.A declares ”We are very enthusiastic about the

opportunities that we’ll be able to provide to our worldwide customers. The expertise of TDL Sensors Ltd through

Tunable lasers (including cascade lasers) for the monitoring of high‐resolution gas concentration in industrial

processes, combined with the expertise of Environnement S.A Group in the monitoring of gas and particulate, will

definitively help to anticipate the worldwide requirements for much lower emissions”.

Roger Benson, Chairman of TDL Sensors Ltd adds: “This strong partnership announced today will boost TDL Sensors

Ltd growth plan and strategy, allowing our technology to reach new customers and new markets, while

strengthening our capacity to develop new applications (on road vehicle emissions, carbon policies and carbon trade

monitoring devices…)”.

About ENVIRONNEMENT S.A (www.environnement‐sa.com) :

Environnement S.A, the European leading manufacturer of on‐line environmental monitors whose headquarters are

based in Poissy (France), is a Public company since January 2006 listed on NYSE‐Alternext.

Founded in 1978, the Environnement S.A Group provides solutions to public and industrial decision makers

responsible for environmental policy and compliance, helping them monitor and evaluate their ecological footprint.

The company has developed advanced expertise in the following continuous monitoring fields: air quality, industrial

emission, engine gas, water quality and radionuclide.

About TDL Sensors Ltd (www.tdlsensors.co.uk):

TDL Sensors Ltd was founded in 1999 and spun out of the Department of Chemical Engineering, University of

Manchester, to develop a tunable diode laser based gas analyzers. In the following years, TDL Sensors have

developed measurement solutions for the glass coating industry, ultra‐harsh processes, enclosed atmospheres for

the protection of personnel, trace gas monitoring for the oil and gas industries and for the optimization of

combustion in Steel Industries.