Cemex UK Operations Limited v Secretary of State for Transport
Decision date: 18 November 2025
Neutral citation: [2025] UKUT 376 (LC)
Overall AI summary confidence: medium
Short overview
This short overview is intended to summarise the case, issues and outcome so far as they are supported by the judgment.
AI confidence in this short overview: medium
This appeal concerns compensation for loss of profits following compulsory acquisition of Cemex's rail sleeper business; the main dispute was how unit costs behave as volumes fall and the economic effect of contractual volume surcharges. The Tribunal accepted the parties' agreed assumptions on inflation, discounting and that the no-scheme contract would include surcharges, resolved the accountants' dispute about cost behaviour, and assessed compensation at £29,933,000. The accountants' divergent positions (roughly £30.53m v £10.36m) were reconciled by the Tribunal's findings on the function of surcharges and cost behaviour.
Ratio decidendi
This summary is intended to identify the ratio decidendi, meaning the legal reasons for deciding and the binding part of the decision.
AI confidence in this ratio decidendi summary: medium
Where expert parties agree fundamental valuation assumptions (here: inflation, discounting and that the no-scheme contract would include volume surcharges), the Tribunal may adopt those agreed assumptions and determine compensation by resolving the remaining factual/accounting disputes; in this case the key valuation question was whether unit costs remain constant as volumes fall or rise at lower volumes, and the decision turned on the Tribunal’s conclusion about the economic effect of volume surcharges in preserving per‑unit margin versus generating additional margin.
Obiter dicta
This summary is intended to identify obiter dicta, meaning observations made by the way that were not necessary to deciding the case and are not binding.
AI confidence in this obiter dicta summary: medium
The judgment contains observations critical of the parties’ lack of narrower agreement on matters capable of compromise and notes that an expert’s omission (Ms Fowler initially missing surcharges) can materially affect loss estimates; these remarks amount to non‑binding commentary on best practice in forensic accounting and expert cooperation.
Warning
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