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Seaspan and Maersk invest $75 million in containership upgrade programme. Credit: Imabari Shipbuilding Seaspan and Maersk are expanding their efforts to improve fleet efficiency through a major upgrade programme covering 18 containerships on long-term charter. According to The Maritime Telegraph, the initiative focuses on lowering fuel consumption, increasing cargo capacity and helping vessels meet stricter environmental requirements. The largest upgrades will be carried out on four 13,000 TEU containerships. Rather than relying only on newbuild vessels, the companies are investing in modernising existing ships and extending their commercial value. The retrofit package includes propulsion improvements, shaft generators, high-efficiency propellers and other technologies designed to improve vessel performance and reduce fuel use. The ships will also be prepared for future carbon capture systems as the industry moves towards lower emissions. The upgrades will increase cargo capacity and provide greater loading flexibility. Seaspan and Maersk expect the improvements to reduce slot costs by around 10-13% while boosting overall operational efficiency. Seaspan said completed and planned investments under the 18-vessel programme total approximately $75 million. In addition, WattSpan, Seaspan's maritime technology and engineering joint venture, has signed a cooperation agreement with Maersk and COSCO Shipyard to support future vessel modification projects, energy-efficiency solutions and decarbonisation technologies.

Seaspan and Maersk deepen strategic collaboration advance $75 million fleet Optimization program. July 8, 2026 The global maritime shipping and logistical landscape is facing an intense dual constraint. On one hand, global supply chains are absorbing persistent operational stressors - including volatile ocean transit corridors, localized port gridlocks, and fluctuating consumer demand profiles that require maximum network agility. On the other hand, maritime shipping lines are facing an absolute compliance deadline. The IMO and other regional regulatory organizations have introduced strict decarbonization rules and carbon intensity standards meant to punish carbon-rich and inefficient shipping vessels. Integrated logistics companies face an operational choke point under these conditions. While the ultimate resolution will be developing next generation container vessels that use alternative fuel sources, such as green methanol and ammonia, developing an entirely new global fleet will require many billions of dollars and many years of backlog in the construction process. Discover more newsletters To achieve massive, short-term emissions reductions and lower operational slot costs immediately, shipping lines must find ways to optimize their existing active vessels. To bridge this operational transition, Seaspan Corporation Pte. Ltd., the world's leading independent maritime asset owner, and global integrated logistics giant A.P. Moller - Maersk announced an expansive deepening of their strategic fleet efficiency program. By executing a $75 million co-investment framework spanning 18 long-term time-chartered container vessels, the two maritime pioneers are providing a practical blueprint. The initiative is designed to maximize cargo capacity, slash fuel consumption, and future-proof the active ocean infrastructure powering global commerce. Urban & Regional Planning Engineering a 13% reduction in slot costs. The multi-year upgrade program centers on retrofitting existing mid-to-large-scale container platforms to unlock immediate structural efficiencies. Building upon a 20-year operational partnership, the cornerstone of the initiative focuses on a highly comprehensive engineering upgrade program tailored specifically for four large 13,000 TEU (Twenty-foot Equivalent Unit) vessels currently operating on long-term charter to Maersk. The unified retrofit deployment package integrates several critical structural and hydrodynamic advancements: The Mechanical Efficiency Core: To drive down auxiliary engine fuel burn, engineers are installing an integrated shaft generator. This setup converts the rotational energy of the vessel's primary propeller shaft into usable onboard electricity, lowering overall fuel expenses. Propulsion and Flow Optimization: The vessels will receive completely redesigned, high-efficiency propellers paired with specialized pre-swirl duct devices that smooth the flow of water entering the blades, maximizing forward thrust while minimizing engine workload. Structural Capacity Upgrades: To optimize the economic return of each voyage, the retrofits physically elevate the vessel's lashing bridges. This modification allows the container ships to stack containers higher, lifting cargo carrying capacities and maximum deadweight limits. Securing Future Fuel Readiness: Beyond basic physical tuning, the engine compartments are being systematically prepared for carbon capture installations, ensuring the hulls can seamlessly adopt emissions-abatement technologies as structural compliance mandates tighten. A Technical Ecosystem Alliance: Supporting the project, WattSpan-Seaspan's dedicated maritime energy efficiency joint-venture entity-signed a formal Memorandum of Cooperation with Maersk and COSCO Shipyard, establishing a structured, one-year framework for collaborative information sharing and future project execution. Impact on the Logistics & Supply Chain sector. The joint upgrade model deployed by Seaspan and Maersk signals a major milestone for the broader Logistics & Supply Chain ecosystem, changing how ocean cargo transport is managed and scaled: 1. Driving the Transition from Fleet Replacement to Structural Modernization Historically, maritime logistics operators assumed that improving environmental efficiency required retiring older hulls and bearing the immense capital expense of ordering replacement vessels. This $75 million program models an alternative pathway: Asset Modernization. By demonstrating that targeted engineering modifications can slash per-container operating costs by 10% to 13% on an existing ship, the logistics sector is proving that extending the lifecycle of existing assets is an efficient, highly practical way to meet carbon reduction goals. 2. Enhancing Supply Chain Resilience via Vessel Versatility As fluctuating international trade routes and canal restrictions alter transit profiles, cargo vessels must maintain high operational versatility. Lifting a ship's deadweight limit and modifying its internal lashing frameworks directly upgrades loading capabilities. This allows port logistics coordinators to pack vessels more efficiently regardless of varying cargo weights, helping global distribution networks bypass port backlogs and protect downstream delivery times. Overall effects on businesses operating in the industry. For international freight forwarders, third-party logistics (3PL) providers, and corporate supply chain procurement executives navigating this transition, the fleet upgrade program introduces direct operational advantages: Insulating Corporate Shippers from Volatile Fuel Surcharges: Ocean bunker fuel pricing remains highly volatile, often leading to unpredictable fuel surcharges that disrupt corporate logistics budgets. Deploying ships equipped with optimized propulsion systems lowers fuel consumption, allowing ocean liners to offer more stable pricing to enterprise clients. Slicing Carbon Accounting Metrics for Global Brands: Under expanding international scope-3 emissions reporting frameworks, corporate enterprises face intense pressure to document and lower the carbon footprint of their transit lines. Ingesting freight through an optimized, carbon-ready shipping network allows companies to hit their corporate sustainability targets cleanly. De-Risking Capacity Bottlenecks Across Major Freight Corridors: As global trade volumes swell, hitting absolute vessel capacity walls can delay consumer deliveries for weeks. Boosting the container capacity of existing workhorse vessels adds instant capacity to high-volume ocean lanes, ensuring consumer products move smoothly without requiring extra port docking slots. Conclusion. "This partnership reflects the kind of practical, high-impact collaboration needed to advance decarbonization across the maritime industry," stated Dimitrios Panagopoulos, Chief Fleet Operations Officer at Seaspan. The multi-vessel modernization strategy is a definitive reminder that long-term survival in the global distribution era requires pairing long-term infrastructure investment with precise fluid and mechanical engineering. By combining Seaspan's asset lifecycle expertise with Maersk's integrated logistics footprint and COSCO's industrial shipyard scale, these maritime leaders are delivering the physical tools needed to move global freight safely and sustainably. For the logistics sector, this integration delivers a clear principle for the road ahead: future market resilience belongs to open partnerships that can turn legacy assets into efficient, regulatory-ready cargo platforms. Discover more Engineering & Technology Advertising & Marketing

Hapag-Lloyd and Seaspan complete first methanol retrofit. Hapag-Lloyd and Seaspan Corporation have successfully completed the first conversion under their joint methanol retrofit program. With delivery of the 'Seaspan Yangtze', the first of five 10,100 TEU charter vessels has been upgraded from a conventional MAN S90 engine to a dual-fuel engine capable of operating on methanol. The conversion marks an important milestone in the strategic collaboration between Hapag-Lloyd, Seaspan Corporation and Everllence. The program also covers 'Seaspan Amazon', 'Seaspan Ganges', 'Seaspan Thames' and 'Seaspan Zambezi'. The overall investment for the five retrofits is estimated at around USD 120 million. "Retrofitting existing vessels is an important lever on our way to decarbonize our fleet operations by 2045," said Silke Lehmköster, Managing Director Fleet at Hapag-Lloyd. "The successful conversion of the 'Seaspan Yangtze' shows that technical innovation and close cooperation with strong partners can make proven vessels ready for the use of low-carbon fuels. For our customers, this is another concrete step towards more sustainable supply chains." Each conversion can reduce CO2e emissions by approximately 30.000 - 50.000 metric tons per vessel per year when operating on low-carbon methanol. In addition to supporting emissions reductions, the project extends the operational use of existing vessels and increases fuel flexibility. Hapag-Lloyd points out that is pursuing its sustainability strategy through several levers, including newbuildings, dual-fuel retrofits, efficiency improvements in the existing fleet and the sourcing of alternative fuels. The conversion of the 'Seaspan Yangtze' demonstrates the role that existing ships can play in the transition towards low-carbon shipping, it highlights.