Butterworth has won a $400,000 contract from China-based Fuijan Mawei Shipbuilding to supply tank-cleaning machines.

An unspecified number of Butterworth’s LT series of tank-cleaning equipment will be supplied to four offshore supply vessels.

The order is destined for 12 offshore supply vessels being built for Tidewater Marine of New Orleans, US, and an additional four vessels for an unnamed client, the company said.

The contract requires regularly planned deliveries up to the end of 2011.

Butterworth supplies automated tank cleaning machines for marine ships, offshore supply boats and barging.