Computer maker Dell has said it will invest $125 billion in China over the next five years, as the company continues to expand in the world's second-largest economy. 

The world's third-largest maker of personal computers said the investment would contribute about $175 billion to imports and exports, sustaining more than one million jobs in China. 

"The Internet is the new engine for China's future economic growth and has unlimited potential," the company's chief executive Michael Dell wrote in a statement. 

"Dell will embrace the principle of 'In China, for China' and closely integrate Dell China strategies with national policies," Dell said, adding that the company would continue to expand its research and development team in China. 

Dell announced in 2010 it planned to spend $250 billion on procurement and other investments over the next 10 years in China, its second largest market outside the US. It was unclear if the $125 billion was part of that investment. 

Dell has been in China for about two decades and, before it went private in 2013, saw annual sales in the country of roughly $5 billion. 

In January, it announced partnerships with state-owned China Electronics Corporation and the municipal government of Guiyang. 

Marius Haas, Dell's president of enterprise solutions, told Reuters in an interview after those tie-ups that partnering was the way to operate in China and the company had become much more aggressive with that strategy. 

Dell ranked third in global personal computer shipments in the second quarter after Lenovo Group and Hewlett-Packard, according to research firm International Data Corp.