I thank the Member for his question. It is a key issue, and the potential costs have concerned me. To date, my Department does not have a cost estimate that has been assessed and approved through the required public finance processes and an approved business case. There are several reasons for that, and it is important that I outline them to the Member and the House.

First, my Department continues to pursue the perpetrators of the environmental crime through ongoing criminal proceedings and will, in line with the "polluter pays principle", strenuously seek to ensure that the polluter does pay. Secondly, my Department will shortly issue a public consultation on a range of remediation options for the site. Stakeholders' views are hugely important to me, and I want to ensure that those views are taken into account in choosing the remediation options. I am therefore not able to confirm stable costings now. Thirdly, a range of approval processes must be carried out to ensure that any remediation proposals are technically sound and cost-effective.

A number of months ago, I visited the Mobuoy site. The issue there is enormously complex. I am focused on it, and it is important that we find a way forward. We will start the public consultation in the time ahead.