COSL Will Announce 2005 Annual Results on 22 March 06

(20February 2006 Hong Kong) China Oilfield Services Limited ( COSL or the Company ; stock code: 2883) will announce its 2005 annual results on 22 March 2006 (Wednesday). An analyst presentation as well as a press conference will be held in Hong Kong at the same day to announce the Company s performance in 2005 and its future strategies.

Details of the events are as follows:
Analyst Presentation
Date: 22 March 2006 (Wed)
Time: 4:30pm
Venue: Meeting Room 402-3,
HK Convention and Exhibition Centre,
1 Expo Drive, Wanchai, HK
Press Conference
Date: 22 March 2006 (Wed)
Time: 5:30pm
Venue: same as above

Formal invitations will be sent out the week before the results announcement date. Presentation materials and press releases will be distributed during the press conference and investor presentation, and will be available for download in the Company website www.cosl.com.cn on the same day. Webcast of the analyst presentation could also be downloaded through the website from 23 March 2006 (Thur) onwards.

For further enquires, please contact:
iPR Ogilvy Ltd
Natalie Tam/Antonia Au/ Katie Tsui/ Sharis Siu
Tel: 2136 6182/ 2136 6176/ 2136 6955/ 3170 6753
Fax: 3170 6606
Email: natalie.tam@iprogilvy.com/antonia.au@iprogilvy.com/Katie.tsui@iprogilvy.com/sharis.siu@iprogilvy.com