(1)    Superior Service Center is registered as a sole proprietorship in Singapore and is principally involved in the renting and repairing of blasting and painting equipment
(2)    These entities are held by Nexus Sealand Trading Pte Ltd.
(3)    On 30 May 2007, Nexus Sealand Trading Pte Ltd had acquired 98,000 ordinary shares in the capital of BT Asia Marketing & Engineering Pte Ltd. As a result, Nexus Sealand Trading Pte Ltd now holds 100% of the total share capital of BT Asia Marketing & Engineering Pte Ltd.
(4)    On 26 November 2007, Nexus Sealand Trading Pte Ltd has acquired 10,000 ordinary shares in the capital of OneHub Tank Coating Pte. Ltd. (formerly known as Superior Towing Services Pte. Ltd.). As a result, Nexus Sealand Trading Pte Ltd now holds 100% of the total share capital of OneHub Tank Coating Pte. Ltd.