The United States government is no longer disguising its intention to block closer ties between Argentina and China, and has openly stepped up its geopolitical strategy. 

Beyond the exceptionally close relationship between Javier Milei and Donald Trump, ties between Argentina and the Asian power are deeply important to the national economy. The geopolitical chessboard appears to be moving into its next stage, from the middle game to an endgame whose outcome remains uncertain.

Argentina renewed the currency swap that the Central Bank holds with China just days ago. In addition, a dispute over Huawei and a request concerning the Chinese space station in Neuquén have reignited tensions. 

In that context, U.S. Ambassador Peter Lamelas issued a direct warning: the use of Chinese technology in strategic networks “won’t help” attract foreign investment to the country.

The statement was made during the AmCham Energy Forum 2026 and reflects growing concern in Washington over the infrastructure surrounding Argentina’s main energy project. 

For the United States, Argentina’s massive Vaca Muerta deposit is no longer just an oil and gas prospect: it is also a geopolitical, digital and security asset at a time when energy, data and communications are becoming increasingly interconnected.

Vaca Muerta, data and diplomatic pressure

Lamelas’ message sought to establish one idea: international investment in energy depends not only on reserves, tax rules or physical infrastructure, but also on the security of the networks that transport and process information.

“Energy data security is a matter of national security,” the ambassador told energy-sector executives. He said U.S. companies and those from other countries want to enter Argentina, but need guarantees that their data will be protected and that they will operate over reliable networks. At that point, he directly targeted China.

“China requires its companies to give its government access to any data that passes through its technology and artificial intelligence networks. Any data that passes through its networks is controlled by the Chinese Communist Party. This is not acceptable.........

© Buenos Aires Herald