TOKYO, May 27 (Reuters) - Nippon Steel ( NISTF ) is

considering offering a so-called golden share in U.S. Steel

to the U.S. government in order to finalise its

long-sought acquisition of the iconic American firm, Japan's

Nikkei newspaper reported on Tuesday.

Deliberations over the idea, which would give Washington the

power to veto important management matters, were also reported

by Japan's Kyodo news agency. Neither outlet cited sources for

the information.

Nippon Steel ( NISTF ) declined to comment on the reports and the

White House could not be immediately reached for comment.

Japan's top steelmaker has for months sought to seal a $14.9

billion bid to acquire U.S. Steel, with the deal subjected to

two rounds of national security reviews by the secretive

Committee on Foreign Investment in the United States.

President Donald Trump on Friday signaled support for the

deal, sending the shares of both companies leaping higher, but

his comments have left lingering questions about the scope of

the deal and its costs for the Japanese firm.

Trump said on Sunday that the United States will have

"control" over U.S. Steel as part of the company's "partnership"

with the Japanese firm, but did not elaborate.

If the acquisition is approved, Nippon Steel ( NISTF ) plans to buy

all of U.S. Steel's shares and delist them, Nikkei reported. It

would then be able to issue a golden share and transfer it to

the U.S. government, Nikkei said.

The idea is among several being weighed by Nippon Steel ( NISTF ) and

it has not yet been shared with the U.S. government, it added.