Broadcom this week pledged to continue Qualcomm's investment in 5G research amid signs that government officials are worried about the ramifications of a potential merger between the companies.

The chip maker added that a merged company would maintain R&D spending levels and focus its efforts on "critical technologies that are essential to the U.S." Broadcom officials also promised to establish a $1.5 billion fund to educate and train new engineers in the country.

"Broadcom is committed to making the U.S. the global leader in 5G," the company said in a statement.

The comments followed an order from the Committee on Foreign Investment in the United States that pushed back Qualcomm's scheduled March 6 board meeting until next month.

Qualcomm investors were set to vote on members of the company's board — either the incumbent directors or a slate of candidates offered by Broadcom — but CFIUS, in an unprecedented move, sought to preemptively review the proposed acquisition.

The panel typically reviews the national security implications of transactions involving overseas companies after they are officially announced.

The New York Times reported that Broadcom appeared poised to gain seats on Qualcomm's board at this week's meeting, and Broadcom called Qualcomm’s filing with CFIUS "a blatant, desperate act by Qualcomm to entrench its incumbent board of directors."

Although Broadcom is officially relocating from Singapore to Delaware, the Trump administration — which is already worried about the country's position in the race to 5G — appears to remain concerned about what would be a major shakeup in the domestic chip and semiconductor market.

Republican lawmakers echoed those concerns this week.

"Qualcomm's work is too important to our national security to let it fall into the hands of a foreign company — and in a hostile takeover no less," said Sen. Tom Cotton, R-Ark.

Broadcom argued that even as it shifts its headquarters to the U.S., it is "in every important respect an American company" with a potential combined domestic workforce of 25,000 if its takeover bid is successful.