Breaking pre-market news on Tuesday,
- Persimmon says operating margins will show a further improvement in first half of year — statement.
- CSM, the world’s largest bakery products supplier, issues major profits warning; blames raw material prices — statement.
- Charter International increases exposure to Brazil with acquisition — statement.
- Corporate: Tullow Oil, Shanks, N Brown, St Modwen Property, Arden Partners, Jacques Vert, Zotefoams, Marshalls, Waterlogic, Bumi Resources, Renovo, Charteris.