Ltd) by Cornwall Tin & Mining Ltd. In 1974 Mount Wellington mine, controlled by the Cornwall Tin and Mining Corporation, and situated a few miles to the west of Truro on the opposite side of the Bissoe Valley, to the neighbouring Wheal Jane mine, was to go ahead with the proposed tin mining operation. It was the third new tin mine in Cornwall in three years. The erection of the concentrating plant commenced in preparation for receiving its first ore from underground in January 1976. The operation will cost initially some £4-25 million to finance and qualified for a 20% grant from the U.K. Government. The initial throughput was forecast to be 0'2 million tonnes/annum in an all-gravity plant to provide about 1,600 tonnes of tin metal and some copper, zinc and silver. The shaft was to be deepened from 210m to 310m. The mine was planned to have a life of some 25 years, and the workforce planned was up to 300. However, on 20 April 1978 Mount Wellington Mine closed. No more ore ever came up Wellington's No.1 shaft after this date. No.1 shaft was retained for man and machinery access. The Wellington site was sold by the Administrators of Cornwall Tin & Mining Ltd to a Falmouth-based scrap dealer. In August 1979 Carnon Consolidated, a subsidiary of Rio Tinto Zinc, acquired Wheal Jane from Consolidated Gold Fields Ltd. RTZ used Thyssens to redevelop Wheal Jane and used William Press to renovate Wheal Jane's mill. Carnon also bought the freehold of Wellington's No.1 shaft area, together with Wellington's Engineering Building from the scrap dealer. £10m was allocated to renovate both mines. Also in 1979, Billiton Minerals (UK) Ltd, a Shell subsidiary, bought Hydraulic Tin of Bissoe, who worked alluvial tin and mine waste tailings. Billiton bought the rest of the land and buildings, including the Mill at Mount Wellington Mine. They also bought the Wheal Maid valley and the tailings dam and lagoon. Wellington's offices, and some land for storage of plant, were leased from Billiton by Thyssens. Thyssens used Wellington as a base for their work at Wheal Jane, South Crofty and Geevor mine. 1980s-90s In June 1980 production at Jane recommenced, some ore coming from Mount Wellington. The following year, a new 7” MDPE pipeline was laid between Wellington and the Tailings Dam at Wheal Maid. Old mine waste was sluffified and pumped into Wellington's Mill,