HELSINKI (Reuters) - Nokia has reached high volumes in single-chip mobile phone sales, the company's head was quoted in a newspaper as saying on Friday.

Single-chip technology is used to make ultra-low-cost phones, aimed at developing markets.

"We now have several single-chip phones in the market. It is one of the key factors in our cost competitiveness in cheaper phones," Nokia Chief Executive Olli-Pekka Kallasvuo told Finnish daily Helsingin Sanomat.

"We are already talking about volumes of tens of millions."

In May, chipmaker Infineon said a project to supply Nokia with single chips for its ultra-low-cost phones had been delayed.

But Nokia has said its development of the phones is on target, as it has multiple suppliers for the project, including Texas Instruments.

(Reporting by Sami Torma)

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