Global supply chains rely heavily on maritime transport, with around 80% to 90% of global trade by volume moving by sea. These flows are sustained by a workforce of approximately 1.9 million seafarers, operating cargo vessels, tankers, container ships and bulk carriers across international shipping routes.
Despite their central role in sustaining global trade, seafarers remain among the least visible groups within supply chain discussions. While ESG debates often focus on environmental targets or labor conditions in manufacturing, the social realities of maritime workers receive far less attention.
The social dimension of maritime supply chains is particularly significant given the structure of the global seafaring workforce. Most seafarers originate from developing maritime labor-supply countries such as the Philippines, India and Indonesia. For many coastal and island economies, seafaring represents a major source of employment and remittances. Disruptions affecting maritime workers therefore extend beyond shipping operations to broader social and economic systems.
For much of the past decade, piracy appeared to be declining. However, recent data from the International Chamber of Commerce’s International Maritime Bureau indicate that piracy and armed robbery against ships are once again increasing.
At the same time, geopolitical tensions are introducing new forms of maritime insecurity that extend beyond traditional piracy. Operating in dangerous environments such as the Strait of Hormuz places considerable pressure on seafarers. When shipping routes become areas of heightened tension, crews may spend extended periods under elevated security protocols, implementing defensive measures, maintaining additional watch-keeping duties and preparing for emergency scenarios. These conditions intensify an already demanding profession characterized by long working hours, extended contracts at sea and prolonged separation from family and support networks.
Evidence from seafarer welfare research suggests that these conditions can significantly affect wellbeing. Encounters with piracy or armed threats have been shown to contribute to elevated levels of anxiety, fatigue and psychological strain among seafarers. Ships operating in high-risk regions often implement additional security procedures, including restricted deck access, continuous monitoring and coordination with naval patrols.
For companies that rely on maritime transport to move goods across global supply chains, these developments raise an important question: How should the human dimension of maritime risk be addressed within responsible supply chain management?
The social pillar of ESG provides a useful framework for addressing this challenge. Responsible supply chain governance increasingly requires companies to consider labor conditions not only within factories or extraction sites but also across the transport networks that connect them. Supply chain scholarship similarly emphasizes that social responsibility should extend across all tiers of global production networks.
Maritime logistics therefore represents a critical component of responsible supply chain oversight. International labor standards provide an important foundation for protecting maritime workers. The Maritime Labour Convention, established by the International Labour Organization, sets global standards covering working hours, accommodation, medical care and repatriation rights for seafarers and is widely known as the “Seafarers’ Bill of Rights.”
However, structural challenges remain. Industry forecasts suggest that the global shipping sector could face continued seafarer shortages in the coming years. Improving working conditions and strengthening welfare protections may therefore become essential, not only for ethical reasons but also for maintaining the long-term resilience of maritime supply chains.
Recognizing these challenges, industry stakeholders are expanding initiatives aimed at improving crew safety and welfare. Training programs increasingly prepare seafarers to respond to piracy threats and emergency situations, while improved communication technologies allow vessels to remain connected with maritime monitoring centers and welfare services. Regional information-sharing frameworks coordinated by organizations such as the International Maritime Organization and ReCAAP help ships identify emerging threats and adjust routes when necessary.
As global trade continues to rely heavily on maritime transport, the human dimension of maritime security is likely to receive increasing attention. Environmental sustainability remains central to the industry’s long-term transformation, but emissions targets alone cannot define responsible maritime operations. Research examining the transition of the maritime sector toward more sustainable and resilient systems highlights the importance of integrating governance frameworks, stakeholder engagement and social responsibility into maritime policy and industry practices.
The resurgence of piracy and attacks linked to geopolitical tensions underscore a fundamental reality: Maritime security risks are not only logistical or financial concerns; they are human ones. Seafarers remain the largely unseen workforce sustaining global trade. As shipping lanes increasingly intersect with geopolitical tensions and unstable regions, protecting their safety and wellbeing will become an essential element of responsible supply chains.
