TORONTO -- Celestica swung to a second-quarter GAAP net loss of $6.1 million, one year after earning $5.3 million.

For the period ended June 30, revenue was up 13.5% to $1.59 billion, within company guidance. Profits fell as the EMS company's restructuring and other one-time charges rose to $23.8 million from $20.7 million last year.

"Celestica's year-over-year increase in revenue reflects the progress the company is making toward achieving its revenue growth objectives in its targeted end markets," said Craig Muhlhauser, president and chief executive. "Recent wins in our consumer, computing, industrial segments, and the after-market services business, are expected to further contribute to our revenue growth in the fourth quarter."

The contract electronics manufacturer guided for third-quarter revenue of $1.55 billion to $1.65 billion.

Celestica also announced a definitive agreement to acquire Allied Panels, an Austria-based medical engineering and manufacturing service provider with a core focus on diagnostic imaging products. The acquisition will expand Celestica's capabilities in the healthcare diagnostic and imaging market.The business has revenues of about 40 million euros, and the transaction is expected to close in the third quarter.