Caterpillar Inc. posted higher third-quarter revenue, with its energy and transportation business boosting earnings amid rising demand for equipment needed to fuel data centers for artificial intelligence.

The heavy-equipment maker posted adjusted earnings of $4.95 a share, compared with the $4.51 average estimate of analysts polled by Bloomberg, according to an earnings statement from the company on October 29.

Revenue from its main operating segments rose 10% to $16.7 billion, led by the energy and transportation unit. The division, which provides battery storage and backup generators for industries, has been Caterpillar’s fastest-growing segment, outpacing its more traditional businesses that make heavy-duty equipment for construction and mining.

Investors hungry for exposure to a boom in artificial intelligence have been piling in on shares of old-line industrial companies that make equipment used to generate power for data centers.

Shares of Caterpillar rose 4.9% in premarket trading in New York on October 29.

Caterpillar is among the world’s largest manufacturers of construction and mining equipment, making it a key barometer for the health of the global economy. The company’s iconic yellow machines span multiple industries and regions, so its sales can signal either strong global industrial activity or slowing economic growth.

Separately, Caterpillar said it expects to record $650 million to $800 million in tariff costs in the fourth quarter.

Caterpillar told investors in late August that U.S. President Donald Trump’s tariffs on foreign imports will have a greater-than-expected impact on its financial results, forecasting a net impact of $1.5 billion to $1.8 billion this year. The company said it now expects those tariff costs to be between $1.6 billion and $1.75 billion this year.

With the impact of tariffs, the company reiterated its August expectations that adjusted operating profit margin for the full year to be near the bottom of its annual target range.