Acquisition

Halma PLC 11 June 2004 HALMA p.l.c. COMPLETION OF ACQUISITION OF OCEAN OPTICS, INC. The Board of Halma is pleased to announce that, Ocean Optics, Inc. has obtained the approval of its shareholders at a meeting held on 8 June 2004 to accept the offer from Halma and, all other conditions having been satisfied, the acquisition of Ocean Optics, Inc. completed on 10 June 2004. For further information, please contact: Halma p.l.c. +44 (0)1494 721111 Stephen O'Shea, Chief Executive Kevin Thompson, Finance Director Hogarth Partnership Limited +44 (0)20 7357 9477 Rachel Hirst/Andrew Jaques A copy of this announcement, together with other information about Halma, may be viewed on its website: www.halma.com This information is provided by RNS The company news service from the London Stock Exchange

Companies

Halma (HLMA)
UK 100

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