worth a look

Recently listed.

http://www.hydro-usl.com

Hydrotech has acquired Universal Solutions Ltd (USL), a company incorporated in Hong Kong which specialises in the design and installation of technology and know-how in the area of prevention of water ingress into subterranean concrete and masonry structures and
which, via subsidiary Underground Solutions international Ltd (USIL), owns the rights to a proprietary method of electroosmotic dewatering of
subterranean structures using multiple low-voltage electrical pulse sequencing (MPS).

USL and its fully-owned operating subsidiaries, USIL, USIL (UK) plc and USIL (HK) Ltd, have expertise in civil engineering, geotechnical engineering, architecture, electronics and project management.