NEW plans for a £1 billion potash mine on the North York Moors are set to have “important and potentially significant changes”, a report has claimed.

York Potash plans to build the mine near Whitby, within the national park, and has said a planning application will be submitted no later than July.

It delayed its original application to ensure environmental information was available for the controversial scheme.

The national park authority’s planning committee will be given an update on the project this week.

A report by its director of planning, Chris France, said the mine head site could be larger, the construction period may be longer, and the company may target the overseas market.