Maritime Industry Briefing: Onboard Carbon Capture Advances While Container Rates Post Third Consecutive Weekly Decline

## Onboard Carbon Capture Moves Closer to Commercial Deployment Onboard carbon capture and storage (OCCS) technology is making meaningful progress toward commercial reality, according to gCaptain, with several systems now operating at sea following years of laboratory development. At least one full-scale installation is currently demonstrating capture rates of approximately 50% of shipboard CO2 emissions, a significant milestone for a technology that has long been viewed as a promising but elusive tool in shipping's decarbonisation toolkit. The advancement signals that OCCS could eventually serve as a transitional solution for existing fleets unable to immediately switch to zero-emission fuels. However, substantial challenges remain before widespread adoption becomes feasible. Key hurdles include the significant weight and space requirements of capture equipment, the logistical complexity of offloading captured CO2 at ports, and questions around the long-term storage and disposal of captured carbon. The economics of the technology also remain uncertain, with capital and operational costs yet to be proven competitive against alternative compliance pathways under the International Maritime Organization's tightening emissions framework. Industry observers note that while OCCS is unlikely to be a silver bullet, it may play a complementary role alongside alternative fuels and energy efficiency measures as shipowners navigate increasingly stringent carbon regulations. --- ## Container Spot Rates Slide for Third Straight Week Global container spot freight rates have declined for a third consecutive week, with weakening demand and the unwinding of a front-loading surge continuing to pressure major east-west trade lanes, gCaptain reports. The sustained softening follows a period of elevated activity earlier in the year, during which shippers accelerated cargo movements in anticipation of potential tariff changes and supply chain disruptions. With that pre-emptive demand now largely absorbed, volumes on key transpacific and Asia-Europe corridors have eased noticeably. The trend underscores the cyclical nature of container shipping markets and raises questions about near-term rate sustainability heading into what is traditionally a more active summer shipping season. Carriers that benefited from the front-loading spike may face increased pressure on yields in the coming weeks if demand fails to recover at pace. Market participants will be closely watching whether blank sailings and capacity management measures by major liner alliances are sufficient to provide a floor for rates, or whether the current downward momentum continues into the second half of the year. --- *Sources: gCaptain. This briefing is compiled from publicly available maritime industry news feeds.*