(Adds comments from company conference call throughout and updates stock-price activity.)

Magna International Inc. (MGA) suffered through one of the toughest periods in its history in the first quarter of 2009, posting losses on a GAAP and operating basis as its major customers struggled to restructure, and vehicle production plummeted.

The auto-parts giant suspended its quarterly dividend Wednesday in a bid to conserve cash, and warned that its results will be hurt in the short term by planned shutdowns at its major customers.

Magna swung to a loss of $200 million or $1.79 a share in the first quarter from earnings of $207 million or $1.78 a year earlier. Sales tumbled 46% to $3.6 billion.

Its operating loss was $230 million, compared with operating earnings of $286 million a year earlier.

The Thomson Reuters mean estimate had called for a loss of $1.61 a share in the latest quarter.

On a conference call, co-chief executive Don Walker said the company faces extremely challenging times, noting that North American auto production declined 50% in the quarter, the biggest slump it has ever seen since 1970, when it started keeping records.

Auto-parts suppliers are reeling from the unprecedented downturn in the U.S. auto industry, which has sent some auto-makers scrambling for government aid and which led Chrysler LLC (C.XX) to seek bankruptcy protection in the U.S. last week. Both Chrysler and General Motors Corp. (GM) also plan lengthy temporary shutdowns this year, which will further reduce demand.

Magna said GM is its largest customer and Chrysler its fourth largest.

Magna is one of the few suppliers with a strong balance sheet that would allow it to capitalize on industry woes. For instance, it confirmed earlier this week that it's part of a consortium in talks to acquire a stake in Opel, GM's German car unit.

During the call, Magna declined to go into details about Opel except to say that it could be a good opportunity to share platforms and major modules with an "intelligent corporation."

Magna has embarked on several cost-reduction initiatives, such as rationalizing and downsizing facilities, implementing short-week schedules, freezing wages and cutting discretionary bonuses at the end of 2008.

However, the company also sees reasons for optimism, as U.S. car sales appear to have bottomed and consumer confidence for car buying is on the rise.

In the first quarter, Magna's North American and European average dollar content per vehicle rose 4% and fell 4%, respectively, from a year earlier. North American vehicle production was sharply lower, down 50%, while European vehicle production fell a steep 40%.

Tne company said its complete vehicle assembly sales fell 63% in the quarter. Complete vehicle assembly volumes fell 72%.

Magna said the auto crisis will reduce its cash resources, but could have a more severe impact on other auto suppliers. "This should provide us with further opportunities to gain additional business, either through acquisitions or takeover business, and position us for recovery when North American auto production returns to more sustainable levels," Magna said.

In New York Wednesday, Magna is up $1.03, or 2.8%, at $37.94 on about 1.0 million shares.

(Andy Georgiades contributed to this article.)

-Carolyn King; 416-306-2100; AskNewswires@dowjones.com