What is the relationship between Norsk Hydro and aluminium in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.
Text: 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.
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