 The Spitty copper works were disposed of in 1855, and most of the company’s operations were transferred to South Australia.In 1861, a copper smelting works was opened in Port Adelaide.However, due to the reduced production of copper ore in the colony, the company’s Kooringa works suspended operations in 1869, and in 1872, a portion of the smelting plant and machinery was transferred to Newcastle, New South Wales, where the Lambton Works opened.