GRAND RAPIDS, Mich. — Dow Chemical Co. announced its second wide-ranging price hikes in less than a month as it attempts to offset sustained record costs for energy and the soaring price of raw materials.

The chemical company announced Tuesday it will raise prices by as much as 25 percent next month, less than three weeks after announcing price increases of up to 20 percent. The first round of price hikes took effect this month.

When Dow raises its prices, it is felt across dozens of industries that manufacture everything from diapers to automobiles.

Dow says it is trying to survive.

"We have to get them back to reinvestment levels where we can continue to build our business and to be there for the future," said spokesman Chris Huntley.

Dow said it's also adding a freight surcharge for North American customers of $300 per shipment by truck and $600 per shipment by rail effective Aug. 1. Those surcharges will spread to other regions later this year.

Dow is idling or reducing production at some manufacturing plants and taking unspecified cost-cutting measures at its automotive plants that have been directly impacted by a dreadful year for U.S. automakers.

The company had not yet worked out the details of its cost-cutting plan, Huntley said, "but it will certainly involve some people reductions, it will involve looking at how we can reduce costs around facilities, overhead and the external spending component."

Dow has automotive facilities in Michigan and throughout the United States, as well as overseas.

Chairman and Chief Executive Andrew Liveris said in a statement the steps are "extremely unwelcome but entirely unavoidable" as global energy costs surge.

"The price increases we announced May 28 helped, but they were not enough to fully cover the additional costs we are now facing," he said. "Even since our last announcement, the cost of hydrocarbons has continued to rise, and that trajectory shows no sign of changing."

Huntley, repeated pleas from Liveris last month, saying that leaders in Washington must immediately create a comprehensive energy policy that includes more domestic drilling for oil and natural gas, more money for alternative energy research and greater emphasis on efficient energy use.

"Dow has improved its energy efficiency by about 25 percent since 1995 and it's targeting 25 percent again between now and 2015," he said. "We've set targets and yet it seems that across industry and consumers and commerce as a whole, there's a reluctance to really drive the sector into efficiency, which is a key component to getting this right."

Dow would not say if more price hikes are imminent.

"If our costs continue to climb, then clearly we're going to have to raise prices," Huntley said.

Company shares fell 39 cents to $37.23 in afternoon trading.

Midland-based Dow makes everything from the propylene glycols used in antifreeze, coolants, solvents, cosmetics and pharmaceuticals, to acrylic acid-based products used in detergents, wastewater-treatment and disposable diapers.

Its products are sold in 160 countries.

The company in April reported a 3 percent drop in quarterly earnings. At the time, Dow said it considered that a strong showing in the face of a 42 percent jump in feedstock and energy costs.

"We expect earnings to remain pressured," Deutsche Bank analyst David Begleiter wrote Tuesday in a note to investors.