In 1923 Francis sold the site to a partnership of miners and a barrister who created and floated the company, Klondyke Collieries Limited. As Klondyke Collieries Limited, coke production at the site flourished. The horse whim was replaced by an electric winder, and air shaft sunk to the workings and fitted with an electric propeller fan, a screening and crushing plant was erected, and power supplied by the Electric Supply Company Limited.
