Paper, packaging and wood products giant Stora Enso has become Unicef's first global corporate partner in basic education.
In a five-year agreement to help Unicef achieve primary education standards for children everywhere, Stora Enso will contribute $2.5m (£1.4m) from cash donations and in-kind voluntary projects.
The programme targets the estimated 121 million children worldwide who are denied primary-school education, more than half of whom are girls.
The agreement is part of Unicef's '25 by 2005' campaign to raise access to primary education for girls to the same level as boys in 25 countries.
"By working with us to help the most disadvantaged children receive a basic education, Stora Enso is demonstrating the best kind of corporate responsibility," said Unicef executive director Carol Bellamy.
"We work on five continents, and every country and community is of great importance," said Stora Enso chief executive Jukka Harmala.