Company Profitability and Market Share

www.cosl.com.cn COSL Well-geared for Challenges in Deep Water COSL's deep water development strategies Well equipped in deep water facilities ⚫two high-power deep water working vessel one 12-streamer seismic vessel ■ One 3000m deep water drilling rig invested by parent company will under operation One deep water survey vessel Well prepared in technology R&D ⚫ ASDD technology increases the depth of the third generation submersible rigs to 1,500m Well collaborated in human resources ◆ On-job training enables our staff experienced in deep water operation ATLANTIS 45 ASDD To start the well testing in 2Q08 Upgrade deep water operation from 500m to 1500m PSC WITH WILL 27 Independent

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