UPDATE: Tenaris Q4 Profit Surges 25%

Tenaris SA (NYSE: TS) posted a 25% rise in its fourth-quarter earnings.

Tenaris' quarterly profit surged to $399.6 million, or $0.68 per American depositary share, versus a year-ago profit of $321 million, or $0.55 per ADS. Its net sales surged 33% to $2.75 billion. However, analysts were expecting a profit of $0.63 per share on revenue of $2.66 billion.

Tenaris' gross margin declined to 37.4% from 38.1%.

Tenaris shares gained 0.81% to $42.50 in pre-market trading.