Norwegian aluminium company Norsk Hydro ASA`s fully owned subsidiary, Hydro Aluminium Rolled Products GmbH , has secured a power contract with Axpo Trading AG, a Switzerland-based energy company with captive power production and international trading activity, totaling 0,9 TWh (100 MW) annually in the eight year period from 2018 to 2025.
Take context from the input text and decide on the accurate relationship between 'Norsk Hydro' and 'aluminium' from the options provided.
Options: product/material produced, chairperson, publisher, operator