The visit by Ocean Affairs Council Minister Kuan Bi-ling to Taiping Island marks the first ministerial trip to the outpost in seven years, Taiwan’s Central News Agency reported. The island is part of the disputed Spratly Islands, claimed by Taiwan, China, Vietnam and the Philippines.

Taiwan’s coast guard said the exercises included humanitarian rescue drills, medical evacuation simulations, and pollution response operations. In one scenario, armed special forces practiced boarding a cargo vessel that had refused to respond to communications.

Authorities said the vessel was escorted to Taiping Island for inspection after it was deemed to have entered waters under Taiwan’s jurisdiction.Video released by the coast guard showed armed personnel entering a ship’s control room while instructing crew members to comply with inspection procedures.

The drills underscore Taiwan’s efforts to assert its presence in the contested maritime region, where overlapping territorial claims have heightened tensions for years.China claims most of the South China Sea and has built extensive artificial islands and military installations in the region, raising concerns among regional states and the United States.

Beijing maintains that its construction and deployments are within its sovereign rights.Taiwan also maintains control over other features in the region, including the Pratas Islands in the northern South China Sea, while Chinese military aircraft and naval vessels regularly operate near Taiwan in what Taipei describes as pressure tactics.

Taiping Island has infrastructure capable of supporting military resupply flights and a port upgraded in 2023 to accommodate larger patrol vessels, though it remains lightly defended compared to nearby Chinese-held installations.

The South China Sea remains one of the world’s most strategically important waterways, carrying trillions of dollars in annual trade and containing key fishing grounds and potential energy resources, making it a persistent flashpoint for regional and global powers.

The bottleneck includes 12 very large gas carriers and 50 very large crude carriers, with only six ships transiting the strait between Tuesday and Wednesday, far below the typical daily average of around 120 vessels in peacetime, data from maritime analytics firm Kpler showed.

Limited movement has been permitted through a tightly controlled corridor near Iran’s Larak Island, with access largely restricted to vessels linked to Iran or countries maintaining favorable relations with Tehran. Lloyd’s List estimates that at least 48 ships have passed through the route since last week under such arrangements.

Iran imposed the blockade following strikes by the United States and Israel on Feb. 28, effectively constraining a waterway that normally handles about one-fifth of global oil and gas shipments. Shipowners granted passage have reportedly faced fees of up to $2 million per transit, although Tehran has indicated that vessels from allied nations may be exempt.

Malaysian authorities said tankers operated by companies including Petronas, Sapura Energy and MISC were awaiting clearance, with Iran assuring Kuala Lumpur that fees would be waived due to bilateral ties. Officials cautioned that heavy congestion could delay passage regardless of exemptions.

China said at least three of its vessels had recently transited the strait following coordination with relevant parties. Ship-tracking data indicated that two container ships exited the Gulf on a subsequent attempt while sailing in close formation and at increased speed, in what analysts described as the first such movement by non-Iranian container vessels since the escalation began.

A small number of other ships have also managed to leave, including a Greek-operated tanker carrying Saudi crude to India and several Indian-flagged liquefied petroleum gas carriers transporting essential cargo.

Shipping sources said some crews have adopted risk mitigation measures such as nighttime navigation or disabling tracking systems to reduce exposure to threats including mines, missiles and drones.Despite limited transits, exports from major Gulf producers such as Saudi Arabia and Qatar remain largely suspended, with hundreds of vessels and an estimated 20,000 seafarers still awaiting clearance in and around the Gulf.

A Pakistani oil vessel reached Karachi after successfully transiting the strait, while another shipment arrived via an alternative route. Officials said further deliveries could follow in the coming weeks.The disruption has intensified diplomatic efforts to reopen the waterway.

Britain is preparing to host talks involving around 35 countries to address maritime security, while China and Pakistan have jointly called for a ceasefire and urged all sides to ensure safe passage for commercial shipping.U.S.

President Donald Trump reiterated on Wednesday that Iran must lift the blockade, warning of potential military action if it fails to comply.