June 19 (Reuters) - The U.S. Securities and Exchange

Commission has closed its investigation into the blockchain

protocol Ethereum 2.0, cryptocurrency firm Consensys said in a

post on social media platform X late on Tuesday.

The firm filed a lawsuit seeking an injunction against the

U.S. SEC in April over regulation of the Ethereum blockchain.

Consensys founder Joseph Lubin said on Wednesday that SEC's

decision to close the inquiry marked "a significant victory" for

Ethereum.

"While we welcome this development, it's not enough. We must

remain vigilant and continue advocating for clear and fair

regulations that enable innovation to flourish," Lubin, who also

co-founded the cryptocurrency ether, said in a post on X.

Consensys said it will continue its lawsuit in pursuit of a

court ruling that the SEC does not have legal authority to

regulate the user-controlled software interfaces built on

Ethereum or the Ethereum blockchain.

The SEC was not immediately available for comment due to a

federal holiday.

The SEC last month approved applications from Nasdaq, CBOE

and NYSE to list spot ether ETFs. It was a surprise win for the

cryptocurrency industry which had expected the SEC to reject the

filings.