Mining company Cornish Metals has said it is "on track" with work it is carrying out at South Crofty mine in Cornwall.
The Canadian-headquartered company is looking to mine tin at the site, which is located beneath the towns of Pool and Camborne in the Duchy. South Crofty closed in 1998 following more than 400 years of continuous production and was acquired by Cornish Metals in 2016.
The business secured £40.5m in financing for the project in May and has been moving forward with plans to dewater the mine and deliver a feasibility study, it said.