The contract with -PROV-Produktions- und Vertriebsgesellschaft mbH was signed on 20 March 2019. PROV is the general licensee of patents and industrial property rights of the private company Forschungsinstitut für Flüssigboden GmbH, produces and sells products under the RSS System brand.

The company’s products represent a complex system that allows flexible and rational planning and construction of separation systems and supply lines at the highest level of quality.

Main lines of business -PROV-:

1. RSS® liquid soil, RSS® liquid soil compound, additive for temporary liquefaction and subsequent reconsolidation of soil.
2. RSS® Combination Shaft: Shaft system for the rational and space-saving installation of underground infrastructure, especially modern sewer separation systems.
3. RSS® Technology: system-specific technical components, devices and machines for the production and installation of RSS® Liquid Floor.
4. RSS® Services: system specific services for quality assurance and efficient handling of products.
5. Fleet rental (Flüssigboden GmbH).