The company behind plans to re-open the last working tin mine in Cornwall says it hopes to finish preliminary work by next spring.
South Crofty near Camborne closed in 1998. It was bought by the Canadian firm Strongbow in July.
Strongbow says an announcement about re-starting production will be made once tests are completed on the safe disposal of contaminated water.
Rare orchids are being moved from the site of a Cornish tin mine in an effort to secure their future. Horticulture experts from Duchy College Rosewarne are relocating them to campus ponds from the South Crofty mine.
They say numbers of Southern Marsh orchids have declined by 80% in the last decade.
Camborne and Redruth's MP, George Eustice, is confident another investor can be found for the South Crofty tin mine, which has gone into administration.
Western United Mines announced it was seeking new investment after a Canadian mining firm pulled out of a potential deal.