Torstein is currently executive chairman of Freyr AS, a Norwegian company aiming at establishing a 32 GWh Giga factory for lithium battery cells in Mo I Rana Norway.

He led the state-owned, fully integrated utility company, responsible for development, generation, transmission, distribution and retail of electricity, to serve more than 500,000 customers throughout the State of Sarawak.

In August 2008 Torstein left Norsk Hydro to take up the position of President and CEO of Europe's biggest shipbuilding group, Aker Yards ASA, with 15,000 employees and listed on the Oslo Stock Exchange.

Under Torstein's leadership, Sarawak Energy has taken an active approach on the management of social and environmental aspects, positioning itself as a responsible corporate citizen.

[8] Torstein has fostered a company direction where CSR initiatives are placed at centre stage, focusing on the capacity of hydropower to secure socio-economic development for the remote communities of Sarawak.

[9] With support from rural communities, besides literacy and numeracy, the programme has focused on new ways of thinking to improve living conditions, including health, hygiene, nutrition and gardening.

These CSR initiatives include the provision of amenities ranging from clean water, electricity supply, transportation, facilities for education and religious worship.