US Warns Argentina: China Deals Won’t Bring Investment

Washington’s envoy told Argentine business leaders that deepening ties with Beijing scares off the Western money Milei is chasing. Beijing calls it interference.

The US warning to Argentina over China could not have been more blunt. Speaking in Buenos Aires on Wednesday, US Ambassador Peter Lamelas told a room full of energy executives that doing business with Chinese firms “will not help bring in the investment” Argentina says it needs.

What the US ambassador actually said

Lamelas spoke on 13 August at an AmCham energy forum in Buenos Aires. AmCham is the American Chamber of Commerce in Argentina.

His message was simple. If Argentina lets Chinese technology into strategic networks — power grids, communications, oil and gas fields — Western investors will stay away. “It is not going to help bring in the investment,” he said, per Argentine outlets Ámbito and MDZ.

His reasoning centred on data. Lamelas argued that Chinese law forces companies to hand the state access to any information that moves through their systems. “Data security is a matter of national security,” he said. In his telling, that makes Chinese kit a poor fit for firms that want trustworthy networks in a place like Vaca Muerta, the giant shale formation in Neuquén.

The deals he singled out

Lamelas did not speak in the abstract. He pointed to a deal between Chinese giant Huawei and CALF, an electricity cooperative in Neuquén, and to equipment upgrades at a Chinese-operated space station in the same province.

He also raised the stakes for the people in the room. Reports say he warned that Argentine executives who press ahead with sensitive Chinese partnerships could see their US visas revoked. That threat has become a running sore in recent weeks.

China’s embassy in Buenos Aires has pushed back hard. It accused Washington of “obstructing” normal business and, in an earlier round, dismissed Lamelas’s comments as “ideological prejudices” that “deliberately defame” China-Argentina cooperation. Beijing says it has “never sought spheres of influence.”

Why Argentina is caught in the middle

Here is the tension. Milei ran as a fierce China critic and has swung Argentina toward Washington. His government has welcomed a US Treasury support line worth around US$20 billion, arranged under Secretary Scott Bessent, who has said Milei is “committed to getting China out of Argentina.”

Yet the numbers tell a more tangled story. Just a week before Lamelas spoke, Argentina’s central bank renewed its currency swap with China. The deal is worth 130 billion yuan, or roughly US$19 billion, and now runs for five years, through 2031. About US$5 billion of it is active and helps cushion Argentina’s thin reserves.

Chinese money is also poured into hard assets. Total Chinese investment runs near US$23.3 billion. That includes about US$8 billion for the Santa Cruz hydroelectric dams, some US$2 billion for the Belgrano Cargas freight railway, and lithium and oil stakes across the north and Patagonia. This is not a relationship Buenos Aires can unwind overnight.

What the warning means for investment

Strip away the diplomacy and Lamelas is making a market argument. He is telling Argentina that US and allied capital comes with strings: keep Chinese vendors out of sensitive infrastructure, or watch the Western checkbook stay closed.

Beijing offers a different deal — swap lines, dam finance and buyers for lithium and crude, with fewer questions about governance. Milei’s bet is that he can bank both, taking US backing while quietly keeping the Chinese swap alive. Wednesday’s speech was a reminder that Washington may not let him have it both ways for long.

For now, nothing is settled. No investment has been publicly cancelled because of the ambassador’s words, and the Huawei and space-station disputes remain unresolved.

Why this matters if you live in or invest in Latin America

If your money or your life is tied to Argentina, this is more than embassy theatre. The country’s ability to attract fresh capital shapes the peso, the price of imported goods, and how quickly Milei can lift capital controls that still limit what you can move in and out.

A clean tilt toward Washington could unlock US and European investment in energy and mining, and steadier dollars. A messy standoff — visa threats, stalled deals, an angry Beijing — could spook the very investors Argentina is courting. Either way, the tug-of-war between the two superpowers will help decide whether the recovery you are betting on holds.

Sources: Ámbito; MDZ; Buenos Aires Times; South China Morning Post; The Washington Post; Reuters; Argentina’s Central Bank (BCRA).

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