Gren Thomas wants to mine tin and lithium in Cornwall via Wales http://ift.tt/2eVLOG5

https://showcavesuk.wordpress.com/2017/09/13/this-swansea-billionaire-wants-to-reopen-an-old-cornish-tin-mine-reviving-an-industry-featured-in-the-bbcs-poldark-series/

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