Serious irregularity: natural justice

In Republic of Kazakhstan v World Wide Minerals Ltd and Another [2020] EWHC 3068 (Comm) the court was faced with an arbitration award which had upheld some but not all of the claims made by the claimant but which had been given evidence of quantum based only on the assumption that all of the claims would be upheld. The court ruled that the tribunal had been guilty of serious irregularity by making its own assessment of damages on a basis not put forward by the claimant.

The facts