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Blockchain in Global Supply Chains and Cross Border Trade: A Critical Synthesis of the State-of-the-Art, Challenges and Opportunities
Yanling Chang, Eleftherios Iakovou, Weidong Shi4
TL;DR
Global supply chains still face limited visibility, disruptions, spreadsheet-based tracking, and fragmented governmental integration. This paper critically synthesizes these challenges, blockchain capabilities, and leading pilots, concluding that fragmentation and complexity remain obstacles to wider deployment.
Problem
Global supply chains face limited visibility, disruptions, spreadsheet-based tracking, and unresolved integration of governmental agencies’ needs.
Method
The paper critically synthesizes global supply-chain challenges and blockchain potential, then maps leading pilot efforts to identified critical issues.
Results
The synthesis maps leading blockchain pilot efforts to critical issues identified across global supply chains.
Takeaways & Limitations
Blockchain initiatives must address the underlying fragmentation and complexity of global trade while integrating governmental agencies’ needs and requirements.
Takeaways & Limitations
Pharmaceutical supply-chain traceability remains elusive.
Abstract
from arXiv · showhide
Blockchain in supply chain management is expected to boom over the next five years. It is estimated that the global blockchain supply chain market would grow at a compound annual growth rate of 87% and increase from \$45 million in 2018 to \$3,314.6 million by 2023. Blockchain will improve business for all global supply chain stakeholders by providing enhanced traceability, facilitating digitisation, and securing chain-of-custody. This paper provides a synthesis of the existing challenges in global supply chain and trade operations, as well as the relevant capabilities and potential of blockchain. We further present leading pilot initiatives on applying blockchains to supply chains and the logistics industry to fulfill a range of needs. Finally, we discuss the implications of blockchain on customs and governmental agencies, summarize challenges in enabling the wide scale deployment of blockchain in global supply chain management, and identify future research directions.
1. Introduction
Global supply chains remain difficult to monitor and manage despite faster cargo movement, with limited visibility, disruptions, and spreadsheet-based tracking. The paper synthesizes these challenges, blockchain capabilities, pilot initiatives, governmental implications, adoption barriers, and future research directions.
- Introduction: Global supply chain management depends on harmonizing product, process, information, and cash flows, affecting cost, working capital, speed-to-market, service, and profitability.These flows jointly shape business competitiveness.
- Introduction: Despite faster global cargo movement, supply chains face problems tracing events, investigating incidents, protecting cargo integrity, resolving disputes, digitizing, ensuring compliance, and enabling trust.These difficulties span complex cross-border supply chains and involve multiple parties.
- Introduction: The paper reviews global supply-chain and cross-border challenges, blockchain and smart contracts, mapped pilot efforts, governmental implications, adoption barriers, and future research.Its future research agenda involves academia, industry, and government.
- Introduction: The paper also outlines challenges to wide blockchain adoption in global trade and supply-chain management before presenting future research directions.The concluding research directions involve participation from academia, industry, and government.
2. Challenges for Today’s Global Supply Chain Management
Today’s global supply chains face weak traceability, costly disputes, document fraud, cargo theft, cyber vulnerabilities, paperwork burdens, limited digitalization, and spoilage. These challenges obstruct reliable provenance, secure movement, efficient operations, and timely risk response.
- Traceability and provenance: Fake certifications and counterfeit products threaten provenance, brand integrity, and consumers, driving demand for greater supply-chain transparency.Fair-trade, non-GMO, and organic certifications can be easily faked, while counterfeit products are especially damaging in food and pharmaceutical chains.
- Contracts and disputes: Poorly managed contracts and unverifiable performance create expensive, cross-border disputes involving multiple functions and uncertainty over applicable courts and laws.Tracking audits to identify causes is error-prone and costly, while parties may hesitate to litigate in one another’s courts.
- Paperwork and digitalization: Trade remains burdened by extensive paperwork and insufficient supply-chain digitalization, despite substantial potential gains from digitization.Asia-Pacific trade-related paperwork could reduce cost by up to 31% and boost exports by as much as $257 billion per year; current supply-chain digitalization is only 44 percent.
- Operational inefficiency: Transport limitations contribute to major food losses before products reach markets.200 million tons of food spoil before reaching market every year.
3. Blockchain Technology
Blockchain is a decentralized, tamper-proof distributed ledger that records transactions and assets transparently, permanently, and verifiably. Its hashing, consensus, configurable network types, and smart contracts support secure tracking, automation, auditability, and provenance in supply chains.
- Core blockchain architecture: Blockchain is a shared, replicated, synchronized ledger that maintains a permanent, tamper-proof record of transactions and tracks assets among network participants.Each participant maintains a ledger copy, which is updated and validated simultaneously to prevent a single point of failure.
- Core blockchain architecture: Cryptographic hash-linked blocks preserve transaction order and timestamps, while validation and consensus ensure that new blocks are authentic and ledger copies share the same state.A secure hash function makes it mathematically and computationally infeasible to determine the input from a hash; consensus requires agreement among network nodes.
- Blockchain network types: Blockchain networks may be public, private, or permissioned, with participation and consensus access ranging from open involvement to verified, designated activities.Permissioned networks can combine public and private features and are commonly operated by known industry stakeholders.
- Smart contracts: Smart contracts encode predefined, machine-readable rules that self-verify and automatically enforce agreed rights and obligations when conditions are satisfied.Their built-in code can establish relationships without intermediaries, automatically verify fulfilment, and execute agreed terms, reducing transaction costs.
- Supply-chain applications: Blockchain implementation can remediate supply-chain pain points by providing tracking capabilities, full audit trails, irreversible records, and asset provenance.These capabilities help locate and correct problems while recording provenance, ownership transfer, and legalities.
4. Blockchain on SCM and Global Trade: Pilot Efforts
Pilot initiatives apply blockchain to global trade and supply chains to improve transparency, reduce information delays, secure documentation, and streamline container and cargo processes. The reviewed efforts span trade, transportation, food, and pharmaceutical applications, with reported gains in shipment speed, data-entry efficiency, document authenticity, and counterfeit prevention.
- Global trade initiatives: Blockchain-backed bills of lading aim to eliminate the paper-document stacks underpinning global trade.The section reviews pilot initiatives across global trade, transportation, food, and pharmaceutical sectors.
- Port and transportation initiatives: Port of Antwerp and T-Mining use blockchain to map container flows, automate documents, connect data silos, and digitize container release without middlemen.Digital rights transfer between parties, permanently recorded transactions, and restricted access help prevent unauthorized container claims.
- Food and document initiatives: The Antwerp phytosanitary-certificate pilot transferred documents on a New Zealand–Belgium apple shipment without duplication, guaranteeing authenticity and avoiding delays.Smart contracts automated and secured the document flow from the New Zealand inspection authority through exporters and importers to Belgian authorities.
- Global trade initiatives: TradeLens enables secure, non-disputable information exchange and has reduced shipment transit time by 40 percent.The platform has recorded more than 154 million shipping events, growing by one million per day, with 94 organizations involved or committed to joining.
- Transportation initiatives: 80 percent: a blockchain shipping solution reduced inefficient data entry while simplifying updates, accelerating cargo verification, and helping avoid customs-policy penalties.The solution was designed to eliminate printed shipping documents and streamline goods-transport documentation.
- Food and pharmaceutical initiatives: Blockchain pilots in food and pharmaceuticals target faster traceability during contamination incidents and prevention of counterfeit medicines entering pharmaceutical supply chains.Reported food applications include more transparent transaction records, rapid issue identification, and product information accessible throughout production and distribution.
5. Implications of Blockchain for Customs and Governmental Agencies
Blockchain-enabled trade systems could connect customs, governments, and commercial stakeholders in transparent, data-rich environments while improving speed, visibility, security, and responsiveness. For customs agencies, blockchain could support data-driven risk analysis, faster clearance, improved revenue compliance, financial-crime detection, and stronger auditing.
- Implications for customs and governmental agencies: Blockchain-enabled trade systems could connect stakeholders in a transparent, data-rich environment and improve speed, visibility, security, and responsiveness.The affected participants include traders, customs agents, and government agencies.
- Implications for customs and governmental agencies: Blockchain, IoT, and cloud computing could collectively overcome the technology and collaboration obstacles that limited earlier Single Window systems.Earlier systems often added a layer over existing systems without resolving fragmentation and complexity, while coordinating agencies and data requirements remained challenging.
- Implications for customs and governmental agencies: Blockchain could give customs accurate cargo data, real-time location and status visibility, and transparency for data-driven risk analysis and targeting.This would support more informed daily operations by customs and other border agencies.
- Implications for customs and governmental agencies: Embedding customs in a shared trade platform could enable pre-screened cargo clearance and direct limited resources toward shipments requiring specific scrutiny.The platform would link trade-related commercial entities and enable information sharing among involved stakeholders.
- Implications for customs and governmental agencies: Enhanced transparency, traceability, and real-time information exchange could reduce VAT revenue gaps, identify fraudulent practices, and support coordinated action against illicit financial flows.Blockchain could also improve C-TPAT and CSI compliance auditing through immutable chain-of-custody records and faster data transmission into CBP and ACE.
6. Challenges in Adopting Blockchain in SCM
Blockchain adoption in supply chain management remains early because usability, scalability, interoperability, standardization, physical–digital verification, and regulatory challenges require substantial changes and coordination. Addressing these barriers is necessary to realize blockchain’s broader capabilities across global supply chains and trade.
- Adoption barriers: 5.9 years is the projected average time for blockchain’s business-process improvements to become widely available, while most current initiatives remain limited in scope.Broader efforts require significant cultural, political, and technical changes and improved coordination among shippers, carriers, service providers, and governmental agencies.
- Usability and scalability: Usability is a crucial adoption barrier because blockchain requires literacy, public trust, simpler interfaces, improved speed, and formalized protocols.The passage identifies lack of knowledge and broad public trust as the two main hindrances, alongside overly complex interfaces.
- Interoperability: Interoperability remains elusive even though it is necessary for blockchain platforms to integrate with legacy systems and with one another.A central challenge is designing trusted message relays between different chains; interoperability could increase scalability, speed, and extensibility.
- Regulatory and legal challenges: Regulatory and legal challenges include distributed jurisdiction, unclear applicable laws and courts, and the need for frameworks clarifying accountability and responsibility.Because ledger nodes may be located worldwide, determining jurisdiction can be complex or conflicting; regulatory frameworks should assign responsibility sensibly and promptly.
7. Future Research Directions
Future research should integrate governmental requirements into blockchain supply-chain initiatives through close government–industry–university collaboration. Priorities include identifying applications, developing governance and architecture guidance, addressing technical and non-technical barriers, and advancing interoperability with existing business flows and international standards.
- Government involvement is needed to align private-sector blockchain initiatives with public requirements and trade-law compliance.Government support can ensure that blockchain-based supply-chain ecosystems address both governmental and private-sector requirements.
- Future studies should identify where blockchain and smart contracts can automate, harmonize, and exchange governmental trade information and documents.This should clarify business flows, benefits, and potential blockchain use cases for securing trade.
- Research should develop architecture specifications, business-flow representations, and recommendations that position governments as critical supply-chain-network participants.Government agencies need not own blockchain infrastructure, but guidance can support their participation in facilitating trade and securing transactions.
- Researchers should assess technical and non-technical feasibility challenges, including confidentiality, access control, interoperability, open architecture, and standardization.These issues concern integrating blockchain into global trade from a governmental perspective.
- Interoperability solutions should integrate vertically tailored blockchains with existing business flows and international standards such as WCO and W3C.Identifying a path forward can improve blockchain integration across business needs and standards.