ESG Audits are Reshaping Transparency across Maritime Supply Chains

By Ms. Smitha Shetty – Director – Centralised Global Operations – Achilles Information Limited

For years, ESG audits in the marine sector have largely been regarded as compliance exercises to satisfy investor expectations, customer mandates and regulatory requirements. But that perception is rapidly changing in today’s world. ESG is beginning to be more widely recognized across the global maritime ecosystem as a strategic business function that has a direct impact on supply chain visibility, operational resilience and long-term competitiveness, rather than simply a sustainability requirement.

This shift is being driven by growing operational complexity, stakeholder expectations and evolving regulatory requirements. Maritime shipping facilitates more than 80% of global trade and is responsible for approximately 3% of global greenhouse gas emissions, placing the industry at the centre of global sustainability discussions. As supply chains become increasingly interconnected, stakeholders are demanding greater visibility not only into environmental performance, but also into how organisations manage labour practices, human rights, governance standards and supplier-related risks across their value chains.

It is this recent change in regulations that is driving such a shift. The likes of the European Union’s Corporate Sustainability Reporting Directive (CSRD) and Corporate Sustainability Due Diligence Directive (CSDDD) are broadening the scope of corporate responsibility beyond just the immediate business to demand greater transparency across supply chains. Maritime companies are therefore coming under increasing pressure on matters such as Scope 3 emissions, supply chain management, employee welfare, health and safety and ethical procurement policies. As the ESG reporting requirements become more stringent, companies are increasingly being required to back up claims of sustainability with real, verifiable and auditable evidence as opposed to just self-assessment.

The importance of these issues extends beyond compliance. Recent initiatives from the International Maritime Organization (IMO), including a greater focus on seafarer welfare, fatigue management, workplace harassment and the fair treatment of seafarers, are indicative of a wider industry recognition that social and governance issues are linked with operational resilience and business performance. In 2025, the IMO stepped up its efforts to strengthen seafarer protection through updates to safety management guidelines and initiatives aimed at addressing fatigue, wellbeing and workplace conduct at sea. The result has been organisations increasingly recognising that strong ESG oversight is less about risk mitigation and more about enhancing supply chain resilience, protecting reputation and building long-term stakeholder trust.

In this environment, traditional supplier assessments are proving inadequate. Historically, a large number of maritime companies have relied heavily on self-declarations, questionnaires and desktop-based evaluations to evaluate supplier compliance. While these methods offered scale, they often provided only limited visibility into actual supplier practices and operational risks. Suppliers were frequently categorised as either “compliant” or “non-compliant,” without considering broader operational realities, governance maturity or improvement potential.

However, maritime supply chains are inherently complex. They span multiple geographies and involve a wide network of shipyards, equipment manufacturers, logistics providers and marine vendors operating under vastly different regulatory and economic conditions. A standardised, one-dimensional audit approach can rarely capture the nuances and risks that exist across such diverse supplier ecosystems.

This is where ESG audits are evolving.

Increasingly, companies are using ESG audits to drive long-term operational improvements, improve supply chain resilience and improve transparency. The goal is no longer just identifying gaps at a single point, but rather to achieve deeper insights into suppliers’ operations, governance processes and sustainability performance through data-driven, independently verified audit frameworks.

This is particularly true in areas such as supplier governance and labour policies. Maritime supply chains often span across countries with very different labour standards, worker welfare protections and regulatory enforcement. To reduce operational and reputational risks, companies are focused on site inspections, ethical sourcing assessments, sanctions screening and beneficial ownership verification.

Environmental responsibility is also becoming an increasingly important aspect of supply chain management, particularly with respect to Scope 3 emissions – the indirect emissions associated with logistics and supplier networks, which can account for the majority of a shipping company’s carbon footprint. Companies are under increasing pressure to improve the accuracy, traceability and reliability of emissions data from suppliers as investors and regulators demand more reliable sustainability disclosures. Demand for audit frameworks that go beyond declarations and concentrate on verified and quantifiable data is being driven by this.

Technology is taking this transition one step further with digital platforms, AI-enabled analytics and real-time monitoring systems. Organisations can now move from annual retrospective evaluations to real-time ESG performance tracking. Sustainability measures are increasingly being embedded into long-term sourcing plans, supplier onboarding and procurement choices. ESG is now therefore not just a reporting requirement but an operational and commercial consideration that directly impacts company continuity and competitiveness.

Simultaneously, businesses are realising that the key to real change lies in supplier development. Penalising suppliers for their ESG shortcomings without helping them to adapt often results in resistance rather than long-lasting improvement. This is particularly relevant in marine supply chains, where many smaller suppliers are operationally critical, but may not always have the knowledge, resources or capacity to respond quickly to evolving ESG expectations.

There is also growing recognition among large shipping organisations that progress cannot be achieved through fragmented supplier engagement alone. Repeated questionnaires, duplicated assessments and inconsistent reporting requirements can place a significant administrative burden on suppliers, particularly smaller marine vendors that serve multiple customers across the industry. Reducing this fatigue while improving the quality, consistency and credibility of supplier data is becoming an important part of building more sustainable maritime supply chains.

This trend is pushing many businesses towards more collaborative engagement models that focus on continuous development, capacity building and benchmarking. This is reflected in industry-led initiatives such as the Achilles Maritime Network, which brings together major shipping organisations to support a more consistent approach to supplier prequalification, ESG improvement and responsible supply chain management. These initiatives can help suppliers better showcase their sustainability commitments, and help buyers build more resilience, transparency and trust across their supply chains by fostering shared standards and greater collaboration across the maritime ecosystem.

Over time, this collaborative approach strengthens supplier relationships and also contributes to the creation of resilient, responsible and sustainable maritime supply chain ecosystems.

Customers, investors and global partners are paying closer attention to how organisations manage ESG risks across their supply chains, while businesses themselves are expected to demonstrate the same level of transparency internally that they demand from suppliers. Independent assessments, verified disclosures and measurable sustainability targets are therefore becoming critical to building stakeholder trust and commercial credibility. Ultimately, transparency and accountability are becoming key differentiators in the maritime industry.

The broader industry direction is clear. ESG audits are moving beyond their traditional role of routine compliance checks and are evolving into strategic instruments that enable organisations to grasp risk, foster resilience and enhance visibility across their supply chains. In a sector characterised by global interdependencies, operational intricacy and growing stakeholder demands, the availability of dependable ESG data may emerge as one of a company’s most prized possessions.