ST. LOUIS -- Viasystems Group today reported fourth-quarter net sales in its assembly business unit rose 23.4% year-over-year to $45.4 million. The division swung to an operating profit of $900,000, up from a loss of $800,000 a year ago.

Year-over-year, assembly segment net sales increased in the each of the company’s end-markets. Sequentially, sales fell in automotive, industrial & instrumentation, and telecommunications, partly offset by increases in demand from customers in the computer and data communications and military and aerospace end-markets.

Overall company net sales were $303.4 million in the quarter, up 10.9% year-over-year and down 1.9% sequentially. Operating income was $11.7 million, and net income was $5 million.

"I believe we finished the year with some positive momentum that sets us up to continue to make progress on our cost structure in 2014, but in many ways I am glad that 2013 is behind us," said chief executive David Sindelar. "During the past year, we have worked through a number of challenges, including factory relocations, recovery from a fire in one of our largest factories, and new project launches, not to mention the economic pressures from reduced government spending."

Net sales in the company’s printed circuit board segment were up 9% from a year ago to $258 million. Operating income was $11.1 million, up from $2.3 million last year. The company saw higher demand in automotive, telecommunications, and industrial and instrumentation, partly offset by decreases in military and aerospace and computer and data communications.