On a poll, shareholders votes in favour of the transaction totalled 1.317 million while votes against totalled 107.0 million. Some 11.962 million abstained.
The count of votes comes after the company said earlier 92 per cent of proxy votes filed ahead of OZ Minerals' annual general meeting on Thursday were cast in favour.
OZ Minerals has 3.12 billion shares on issue.
The assets to be sold to Minmetals are in Laos, Western Australia, Queensland, Tasmania and Canada.
The sales excludes the Prominent Hill gold and copper mine in South Australia, the Martabe gold project in Indonesia and exploration assets in Cambodia and Thailand.
Minmetals late on Wednesday increased its offer for the assets by 15 per cent to $US1.38 billion ($1.73 billion), from $US1.2 billion ($1.5 billion).
