One of the world’s largest commodity trading firms, Mercuria, has initiated legal action against the Baltic Exchange over the continued publication of benchmark freight rates for tanker voyages through the Strait of Hormuz amid ongoing conflict in the region. The case is scheduled to be heard in the English High Court starting this week.

Mercuria’s claim challenges whether the Baltic Exchange should have suspended its key index, known as TD3C, which tracks the daily cost of transporting 270,000 metric tonnes of crude oil from the Middle East Gulf to China. The dispute arises after the United States and Israel launched strikes on Iran in February this year, escalating tensions and disrupting maritime traffic through the strategically vital waterway.

The Baltic Exchange, a 282-year-old institution often referred to as the “Dow Jones of shipping,” publishes benchmark freight rates that serve as pricing references for commodities trading in a notoriously opaque market. These benchmarks influence contract prices and derivatives used to hedge billions of dollars in commodity trades. However, the industry’s private negotiation practices and varying vessel routes complicate accurate market valuation.

Mercuria argues that in light of the steep decline in shipping activity through the strait and Iran’s assertions that the waterway was effectively closed, the Baltic should have paused the TD3C index. The firm is not seeking monetary damages but instead seeks declaratory relief that would invalidate the TD3C rates published since early March and compel the Baltic to suspend the benchmark. Representatives close to Mercuria have indicated the case centers on transparency and adherence to statutory and contractual duties rather than on recovering financial losses.

The Baltic Exchange has defended its position, stating that intermittent low activity on a route is not unusual and that some vessels continued transiting the Strait of Hormuz. The Exchange further contends it relied on rates provided by “highly experienced and knowledgeable” shipbrokers throughout the period. Mark Jackson, the Baltic’s chief executive, said the Exchange remains confident it has fulfilled all legal and regulatory obligations related to producing the TD3C benchmark and described Mercuria’s claim as without merit.

Industry insiders view the case as a pivotal test for the Baltic’s methodology, especially given the heightened geopolitical risks and the increasing importance of freight costs, which in some cases now represent a significantly larger portion of overall commodity expenses. According to the International Energy Agency, shipping costs for oil have surged to as much as five times their levels from the previous year. Some traders and shipping experts regard TD3C as an increasingly unreliable benchmark, noting that only a limited number of vessels, typically chartered by Gulf national oil companies willing to pay premium rates, have risked navigating the volatile Strait of Hormuz.

The Baltic recently introduced a new benchmark, TD34, which tracks shipments from Fujairah, located outside the Gulf, to China, in an effort to adapt to current conditions. Nonetheless, concerns remain about the reliability and continuity of freight rate benchmarks under conflict conditions. Philippe van den Abeele, founder of Consortium Maritime Trading and a long-standing member of the Baltic Exchange, criticized the publication of prices on routes deemed to be in active war zones as contravening basic principles of benchmarking.

Legal experts for the Baltic have warned that a ruling in favor of Mercuria could trigger widespread disruption across the commodities market, potentially requiring the unwinding of hundreds of trades. Some brokers acknowledge the complexity of the situation, noting that while Mercuria suffered losses on some trades, its concerns may nonetheless hold validity.

As the case proceeds, market participants will closely watch its implications for the standards and credibility of shipping benchmarks amid geopolitical instability.