Ensuring quality shipping fuel is a major issue in the bunker supply chain. This is important as not only does low quality fuel lead to increased chances of shipping breakdowns, but environmental concerns have resulted in the International Maritime Organisation setting a new 0.5% global Sulphur cap on fuel content from 2020 onwards. DLT Ledgers has built a blockchain platform that encourages the sharing of information for improved transparency amongst the key stakeholders, including the traders, buyers, suppliers, certification laboratories and surveyors. By connecting the various players in a private network, they can securely view the entire bunker supply chain process.