Hms Hydraulic S Regulatory News (HMSG)

9 February 2011

The London Stock Exchange

10 Paternoster Square

London, EC4M 7LS

Dear Sirs

HMS Hydraulic Machines & Systems Group plc - Offering of 43,640,000 Global Depositary Receipts (pre-greenshoe)

Stabilisation Notice

Pursuant to Core Dealing Rule 3070, J.P. Morgan Securities Ltd. hereby notifies the London Stock Exchange that it and its affiliates may stabilise the offering of the Global Depositary Receipts of HMS Hydraulic Machines & Systems Group plc:

1. Security to be stabilised: Global Depositary Receipts ("GDRs") of HMS Hydraulic Machines & Systems Group plc;

2. Security Identifier:

Regulation S GDR - ISIN: US40425X2099

Rule 144A GDR - ISIN: US40425X1000

3. Stabilising Manager: J.P. Morgan Securities Ltd. (a member firm) (Contact - Greg Chamberlain on +44(0) 20 7325 1000);

4. Stabilisation period commences: Wednesday 9th February at approximately 08.00 a.m. London time;

5. Stabilisation period ends: Close of business on Wednesday 9th March, 2011;

6. Offer price: USD 8.25 per GDR; and

7. Over-allotment option is equivalent to 10% of the offering.

Yours faithfully

J.P. Morgan Securities Ltd.