“The [UK] Government has concluded that it is the right time for the UK to become a Party to the Singapore Convention on Mediation, as a clear signal to our international partners that the UK is committed to maintaining and strengthening its position as a centre for dispute resolution and to promote the UK’s flourishing legal and mediation sectors.”
You can see the document here – Government response to the Consultation on the United Nations Convention on International Settlement Agreements Resulting from Mediation (New York, 2018) – GOV.UK (www.gov.uk)