Teesside mainly associated with the local petrochemical, chemical and steel processing industries. The port is an important piece of logistical infrastructure for the NEPIC cluster of process companies. Teesside continues to be used locally to refer the entire urban area and the name can still be seen in the following uses: It has also been adopted for various other purposes as a synonym for the former county of Cleveland. It is common to see Teesside spelled incorrectly as "Teeside", with a single 's'. Teesside Teesside () is the conurbation in the north east of England around the urban centre of Middlesbrough
Teesside EfW Cleveland. In December 2006, SITA UK signed a 28-year private finance initiative contract worth £70 million with Northumberland County Council, to provide them with waste management services and to reduce the county's reliance upon landfill. This included the construction of an extra incineration line at the Teesside plant. Civil construction of the extension began in April 2007, with heavy erection beginning that November. Von Roll was the general contractor for the entire extension. In May 2009, the third line, which cost £70 million to build, was brought into operation. It was officially opened on 8 October 2009 by former MP