Hyundai Motor, South Korea's No.1 automaker, posted 2.28 trillion won ($2 billion) in operating profit for the first quarter, a regulatory filing showed Thursday.

Consolidated operating profit, which includes profits from overseas affiliates, reached 2.28 trillion won during the January-March period, up 24.9 percent from a year earlier, according to the regulatory filing. From three months before, the profit expanded 7.3 percent.

Sales advanced 10.6 percent on-year to 20.16 trillion won in the three months ending March 31, and net income amounted to 2.45 trillion won, up 30.6 percent from the same period last year, reported Xinhua.