WASHINGTON (Reuters) - Members of the U.S. Senate and House of Representatives introduced bills on Tuesday to keep tight restrictions on Huawei Technologies Co Ltd, amid concern about President Donald Trump’s easing of curbs on the Chinese firm.

FILE PHOTO: A Huawei signage is pictured at their store at Vina del Mar, Chile July 14, 2019. REUTERS/Rodrigo Garrido/File Photo

The legislation would among other things bar the removal of the massive telecommunications equipment firm from a Commerce Department trade blacklist without House and Senate approval, and let Congress disallow waivers granted to U.S. companies doing business with the company.

The United States has accused Huawei of stealing American intellectual property and violating Iran sanctions. The Republicans and Democrats backing the measures said they viewed the company as a security threat.

“American companies shouldn’t be in the business of selling our enemies the tools they’ll use to spy on Americans,” Republican Senator Tom Cotton, one of the sponsors, said in a statement.

The United States placed Huawei on the Commerce Department’s so-called Entity List in May over national security concerns. U.S. parts and components generally cannot be sold to those on the list without special licenses.

However, Trump, who is seeking to revive trade talks with China, announced late last month that U.S. companies would be allowed to sell products to Huawei.

The “Defending America’s 5G Future Act” was introduced in the Senate by Republicans Cotton, Marco Rubio and Mitt Romney and Democrats Chris Van Hollen, Mark Warner and Richard Blumenthal.

A companion bill was introduced in the House by Democratic Representatives Jimmy Panetta and Ruben Gallego and Republicans Mark Gallagher and Liz Cheney.

Washington also has launched a lobbying effort to persuade U.S. allies to keep Huawei out of next-generation 5G telecommunications infrastructure, citing concerns the company could spy on customers. Huawei has denied the allegations.

Chinese Foreign Ministry spokesman Geng Shuang told a news briefing in Beijing on Wednesday that the United States should immediately cease its “suppression” of Huawei.

Geng said that relevant U.S. legislators were “clinging to a Cold War mentality” in trying to contain China’s development, and that such actions “seriously damaged the United States’ national image”.