From 2021 LEPA and its members aim provide the public and operators of the construction market with reliable information about the characteristics and proper use of expanded polystyrene, thus promoting the circular economy in Lithuania.

Expanded polystyrene produced by members of the LEPA meets all requirements and quality standards of the European Union.

On the initiative of the LEPA, Construction Regulations ST 124555837.01:2005 Insulation of Walls with Expanded Polystyrene were prepared and registered in the Ministry of Environment. The Regulations have become an integral part of normative technical construction documentation and were later updated, receiving a title ST 2124555837.01:2021.

To achieve progress in the construction sector, in 2014, the LEPA together with other associations established a public body Skaitmeninė Statyba (Digital Construction), which takes care of the development and implementation of methods of Building Information Modelling (BIM) in Lithuania.

While developing its international relations, the LEPA cooperates with the German Expanded Polystyrene Association Der Industrieverband Hartschaum e.V. and such companies as BASF, Styrochem, Synthos S.A., etc.

The LEPA is a member of the Lithuanian Builders Association and actively cooperates with Vilnius Gediminas Technical University (VGTU), Lithuanian Association of Civil Engineers, municipalities and other institutions.

In 2006, the LEPA became a member of the European Manufacturers of Expanded Polystyrene (EUMEPS).