SEOUL, South Korea — North Korea intends to press ahead with its plan to launch a satellite into orbit next month, according to a government statement issued Tuesday, rebuffing President Obama and other world leaders who have told the country to cancel the launching or face the loss of food aid and additional sanctions.

The North’s announcement came shortly after Mr. Obama and other leaders at a nuclear security summit meeting in Seoul condemned the planned launching — given the possibility that it is a cover for developing missile technology — as a provocation and violation of a United Nations Security Council resolution, as well as a waste of millions of dollars that could be used to buy food.

On Tuesday, North Korea accused the United States of being confrontational and applying “double standards” on satellite capabilities.

“We will never give up the launch of a satellite for peaceful purposes,” a spokesman for the North Korean Foreign Ministry said in a statement carried by the state news agency, K.C.N.A. The spokesman advised the Obama administration to “drop the confrontation conception” and “make a bold decision to acknowledge that we also have a right to launch satellites.”