US Blocks Chinese Access to Iranian Oil as Hormuz Blockade Faces Mixed Results

Washington tightens pressure on Tehran with naval operation in Strait of Hormuz, even as shipping data shows some vessels slipping through amid ongoing US-Iran tensions.

Hormuz Blockade Enforced

US forces have stepped up enforcement of a naval blockade on Iranian ports, deploying over 10,000 troops and around 12 naval ships to control traffic through the critical Strait of Hormuz. The operation, which began on Monday, aims to choke off Iran's oil exports following the collapse of recent peace talks.

According to US Central Command, no ships passed through the route in the first 24 hours. Officials reported intercepting at least eight Iran-linked oil tankers, instructing them via radio to turn back without boarding.

Mixed Signals on Effectiveness

Yet questions linger over the blockade's full impact. Shipping data reviewed by international outlets indicated that at least four Iran-linked vessels, including two that had visited Iranian ports, crossed the Strait of Hormuz on Tuesday. A few additional non-Iranian ships also transited the waterway.

US Treasury Secretary Scott Bessent made clear the administration's stance on third-party involvement, particularly from China. "They’re not going to be able to get their oil. They can get oil. Not Iranian oil," Bessent told reporters in Washington. He described China as an "unreliable global partner" for stockpiling oil and limiting exports during the conflict.

China-Iran Links Under Scrutiny

A separate report added another layer to US concerns over Beijing-Tehran ties. The Financial Times reported that Iran secretly used a Chinese spy satellite during the recent war, gaining enhanced ability to target US military bases across West Asia.

The development has heightened tensions as Washington seeks to isolate Iran's oil trade. Russia’s Foreign Minister Sergey Lavrov, meanwhile, offered that Moscow could help compensate for any energy shortfalls China might face.

Trump Signals Optimism on Talks

US President Donald Trump struck a relatively positive note on the broader conflict, telling reporters the war with Iran appeared "very close to over." He suggested Tehran was eager for a deal and indicated fresh talks could resume soon, possibly within days, with Pakistan as a potential venue.

Vice President JD Vance emphasised that the administration was not interested in minor agreements. "Trump doesn’t want to make a small deal. He wants to make the grand bargain," Vance said, referring to extended negotiations.

Parallel Diplomacy in Lebanon

In a related diplomatic move, Israel and Lebanon held their first direct talks in over three decades, mediated by US Secretary of State Marco Rubio in Washington. Both sides described the engagement as constructive, with focus on reducing Hezbollah's influence and addressing security concerns.

Israeli officials noted a shared interest in "liberating Lebanon" from Iranian-backed groups, while Lebanese representatives called for a ceasefire and return of displaced persons.

Economic Ripples and Global Concerns

The blockade and continued uncertainty in West Asia have kept oil prices elevated. Brent crude hovered just above $95 per barrel in Asian trade on Wednesday, with markets watching for any escalation or breakthrough in talks.

The International Monetary Fund has warned that prolonged disruption could slow global growth and push oil prices higher in coming years. In India, early market reactions remained positive following a conversation between Prime Minister Narendra Modi and President Trump on the West Asia situation, with benchmark indices gaining ground.

Impact on Trade Routes

The Strait of Hormuz handles around a fifth of global oil shipments, making any sustained blockade a major concern for energy-importing nations, including India. New Delhi has been closely monitoring developments, balancing its strategic partnerships while ensuring energy security.

Officials in Washington have stressed the blockade applies impartially to vessels of all nations linked to Iranian ports. However, the partial transit of ships has raised doubts about complete enforcement in the initial phase.

What Lies Ahead

With the two-week ceasefire due to expire soon, attention now turns to whether renewed US-Iran talks can yield a lasting agreement. The administration has linked the blockade to maximum economic pressure, while leaving room for diplomacy.

Analysts say the coming days will be critical in determining if the naval operation forces concessions or risks further regional instability. For now, the US appears committed to tightening the squeeze on Iranian oil flows, particularly targeting major buyers like China.