Lenovo Group, the world's second-largest personal computer manufacturer by market share, is eyeing a challenge to Apple and Samsung ahead of predicted dramatic sales growth.

The Beijing-based company plans to sell 100 million Lenovo branded units in fiscal 2013, which started on April 1.

"Lenovo's major competitors are no longer traditional PC makers such as Hewlett-Packard Co," said Yang Yuanqing, chairman and CEO of Lenovo.

"We see Apple and Samsung as our biggest competitors as the company is actively entering the smartphone and tablet market."

Lenovo's PC market share was well above 15 percent by the end of last year, according to research firm IDC.

The company expected its global market share in the tablet sector could reach the same level as PC's over the next two years.

Lenovo's market share in the mobile sector is set to increase as the company plans to roll out new smartphone models, said Yang.

Smartphone business accounts for about 20 percent of the company's revenue in China, the company said earlier this year.