Teesside Steelworks South Bank coke ovens and the BOS plant at Lackenby closed in 2015. The Teesside Beam Mill and some support services still operate at the Lackenby part of the site. Steel production on Teesside begins when Bolckow, Vaughan & Co Ltd, formerly Bolckow, Vaughan, opens the Cleveland Steelworks in Middlesbrough. Using the Bessemer process, the works have 3 blast furnaces. Albert John Dorman enters into a partnership with Albert de Lande Long taking over the West Marsh Ironworks in Middlesbrough. Dorman Long is founded. Bolckow, Vaughan & Co Ltd. acquire the Southbank Steelworks. The firm is also persuaded by Sydney
County Borough of Teesside county. The recommendations were accepted, with boundary adjustments, by the Government in October 1965. The main changes were to exclude most of Saltburn & Marske, and the extension of the boundary of the county borough southwards. Part of Preston-on-Tees was added to include Preston Hall, an art gallery and museum owned by Stockton Corporation within the county borough. In January 1967, Anthony Greenwood, Minister of Housing and Local Government, made the Teesside Order 1967 to carry the recommendations into effect. The new borough of Teesside was to combine the areas of: Following its passing by both Houses of Parliament, the