Mark Derrick Ranulph Rowan

Guidance Ltd. is an investment holding company incorporated on 30th July 2002 under the laws of the British Virgin Islands. The issued share capital of Guidance Limited is 10.0%-owned by Cai Qiang, 13.5%-owned by Li Ming, 10.5%-owned by Li Wo Hing, 17.5%-owned by Zhao Tong, 17.5%-owned by Zhao Ying, 18.5%-owned by Zhou Hong and 12.5%-owned by Chan Shut Li, William. It holds 39.66% shareholdings of petrotech.

Part of Omvest Group Holdings LLC (New York), Comvest Group Holdings LLC is an alternative investment manager. The company is based in West Palm Beach, FL.

RepRegen Ltd. develops synthetic, biologically-active and tissue engineering products. Its smart biomaterials are designed both to support and to improve cellular growth in vivo. The firm is an emerging medical device company using patent-pending repair and regeneration technology in two platforms designed to mend and regrow tissue in the body. RepRegen's first platform is focused on bone and other (hard) tissue, whereas the second platform is focused on muscle and other (soft) tissue. The company was founded in June 2006 and is headquartered in London, GB.

Endace Ltd. engages in the research, design and development, manufacture, sales and marketing of network measurement, monitoring, management, security and surveillance solutions. It operates through three main business segments: North America, Europe, Middle East, Africa and Asia Pacific. The North America segment comprises sales and distribution of systems and DAG cards and, support operations in Chantilly, Virginia, USA; servicing customers throughout the Americas. The Europe, Middle East, Africa segment comprises sales and distribution of systems and DAG cards and support operations in Reading, UK; servicing customers throughout Europe, Middle East and Africa. The Asia Pacific segment comprises sales and distribution of systems and DAG cards and support operations in New Zealand and Singapore; servicing customers throughout the Asia Pacific region. The company was founded in 2001 and is headquartered in Auckland, New Zealand.

Oxford BioSignals Ltd. develops products for the health care monitoring and diagnostic markets, as well as for industrial applications. The company uses technologies that stem from research done at Oxford University, focusing on advanced signal processing and neural network technology. Oxford BioSignals was founded in May, 2000 by Lionel Tarassenko and is headquartered in Abingdon, UK.